V1R1 Snake Flu Warning: The Dungeon just became aware of the unconstrained spread of a new a new flu strain. The major symptom is a fever for flying rockets. Luckily, there is a simple remedy: burn 75% APCP and 25% BP, feel the rush, smell the fumes, and smile :)
The September issue of Verna and Randy's Fire and Smoke describes how they made like the H1N1 and went viral! Last month, I featured their Red Squadron of BSG Vipers and, a couple of weeks later, noticed that Make Magazine and Hobby Media featured their site. You can read their account of how their site spread across the web, including a 'short list' of the sites hit by this pandemic. I'm not sure if the Dungeon played a major role in the spread of the Red Squadron, but am happy to be recognized in the same list as those other places ;)
Congrats guys!
On another note, their Photo of the Month is the cool Saturn 1B with strap on boosters from NARAM-51. (I think that I had previously identified as a Saturn V.) Here's one of the shots they are featuring (before one of the boosters prematurely falls off).
Monday, August 31, 2009
Dark Shadows

The 'gothic' soap opera Dark Shadows, which ran on ABC between from June 27, 1966 and April 2, 1971 was in retrospect probably one of my favorite shows. Being a kid when it first aired, I watched it in the summer and occasionally when I was home sick. Featuring vampires, witches and other supernatural beings, my parents didn't approve. Man, have times changed. Today, this might even be children's fare. Later, its reruns were a staple for my wife and I at dinner time. We placed our two 12" B&W TVs on the dinner table (her's rolled and mine would blank out...or was it the other way around?). That lasted for a couple of years. All in all, I probably saw a very small sampling of its episodes. Being a daily show, it racked up 1225 episodes over 5 seasons. You can even buy the entire series - on 132 DVDs!
As much as I liked it, that's too much for me so I'll wait for the movie. Rumor has it, Tim Burton will direct and Johnny Depp will star as the 200 year old Barnabas Collins. I really like Depp but mostly dislike Burton's work. (There's no need to comment on that, ya' like what ya' like.) So, I'm not sure if I'll love it. I only vaguely remember the short-lived remake in the 1990's so it must not have been too keen on it. Or, I was too busy with work and family.
The original was typical of a low budget soap of the day. Lots of missed lines, miscues and generally bad acting. It was not uncommon to see someone unrelated to the scene to appear in the background or even pop in and quickly exit. This even makes me wonder if any quality production can ever 'live up' to the original. I doubt the cast and crew of the new movie will even try and I'll try to keep an open mind.
I didn't think much of the original cast so I don't have opinions on most. My favorite character other than Barnabas was Angelique, the witch who cursed Barnabas and pursued him through the ages. Here's the original Angelique, Lara Parker, in front of a portrait of her in the show (probably one of the most expensive props).
Here she is with fangs bared in front of a portrait of Barnabas, played by Johnathan Frid (the 2nd most expensive prop?).
Maybe a reunion with Kiera?
(BTW, I got on this tangent because the original series was #98 on IO9's 100 best sci-fi/fantasy TV shows.)
Sunday, August 30, 2009
Saturday, August 29, 2009
Now THAT'S an igniter
I received confirmation that the igniter assembly on the ALICE flight motor housed an AeroTech H180 reload. The H180 was head-end ignited. This project is just so cool!
(this short post now resembles the English language)
(this short post now resembles the English language)
Friday, August 28, 2009
ALICE details
I extracted some tidbits from:
This preceded the actual flight test. There is a chance I've misrepresented a fact...this is just a blog...
Tyler D. Wood, Mark A. Pfeil, Timothee L. Pourpoint, John Tsohas, and Steven F. Son of Purdue University and T.L. Connell, Jr, Grant A. Risha and Richard A. Yetter The Pennsylvania State University, "Feasibility Study and Demonstration of an Aluminum and Ice Solid Propellant", 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, AIAA 2009-4890, August 2009.
This preceded the actual flight test. There is a chance I've misrepresented a fact...this is just a blog...
- Aluminum and water propellants are not a new idea but have been rendered feasible by the availability of nano-scale Al (nAl) powder.
- The theoretical vacuum ISP is over 300s.
- The nAl naturally reacts with water and such propellants have a limited shelf life. Alumina coated particles help.
- Keeping the mix at sub-freezing temperatures expends the useful life to 40 days - hence Al-ice or ALICE.
- They used a resonating mixer.
- The flight motor propellant (from static test):
- ISP=160
- one 3" dia. x 6.75" long grain, with 1" core
- 1285 N-s (a baby 'K')
- 1650 psi
- peak thrust ~2500 N
- ~ 1 second burn
- The motor:
- 4" dia.
- custom turned aluminum to allow over 3k psi
- a very long head-end igniter (despite the nAl particles, it needed a lot of energy to get it going)
- The rocket:
- a carbon fiber Mongoose (as I previously guessed) built with standard HPR techniques
- they used dual R-DAS altimeters
- the tested in on an Aerotech K780R
- the references indicate they used RockSim 8
District 9 and more
We finally went to see District 9 today. Even though I wasn't keen on the fake documentary format used in much of the movie and can nit pick details that I think could have been handled differently, I liked it pretty well. It ended with great action but overall could have used a tad more. The choice of placing an alien concentration refugee camp in South Africa was fresh (vs NYC or LA) and I couldn't help relating it to apartheid. (This is a 'no, duh' moment. Not only was this intentional but apparently the story was inspired by specific historical events.) By the end, I was really pulling for the 'Prawns'. And, there is a big hook for a sequel.
While talking movies, I'll point out the weird triplet of previews they showed. First, there was The Vampire's Assistant starring John C. Reilly as the head vamp and freak show owner. Very odd indeed...but strangely intriguing. Then there was Legion. Here, a bunch of people out in the desert have to protect a pregnant woman from a legion of angels. Looked pretty good even though this type of story isn't my favorite. Finally, we had Zombieland, a zombie comedy starring Woody Harrelson. Me...like...zombies... I decided not to embed the trailers, but they are easily found on the official sites and YouTube.
While talking movies, I'll point out the weird triplet of previews they showed. First, there was The Vampire's Assistant starring John C. Reilly as the head vamp and freak show owner. Very odd indeed...but strangely intriguing. Then there was Legion. Here, a bunch of people out in the desert have to protect a pregnant woman from a legion of angels. Looked pretty good even though this type of story isn't my favorite. Finally, we had Zombieland, a zombie comedy starring Woody Harrelson. Me...like...zombies... I decided not to embed the trailers, but they are easily found on the official sites and YouTube.
Labels:
UFOs,
Vampires,
Visual Media: Movies,
Zombies
Dr. Zooch on the radio
I got this from the Apogee e-zine and don't know the original source.
CAPE CANAVERAL, Fla. (August 26, 2009) - Flying model rockets has inspired many youngsters to pursue careers in aerospace, including Patrick McCarthy and Wes Oleszewski, both of whom will be guests on the Aug. 29th edition of "Space Talk."
The use of model rockets as an inspiring, educational tool will be discussed, and some favorite "war stories" about launching and recovering the small boosters will be told by each guest, as well as "Space Talk" host Jim Banke, who lost the first rocket he ever launched.
McCarthy is director of spaceport operations for Space Florida and a long time space modeler. He was part of the team that won the championship in their division at the National Association of Rocketry Annual Meet this month in Johnstown, Penn.
Oleszewski, a former airline captain, is owner of Dr. Zooch Rockets, a company that specializes in model rockets of historic space launch vehicles. He is author of 13 books on Great Lakes maritime history and creator of Klyde Morris, an editorial cartoon strip about aviation and space.
Banke, McCarthy and Oleszewski worked together on "The Avion," the student newspaper of Embry-Riddle Aeronautical University in Daytona Beach, where all three graduated within a few months of each other.
"Space Talk" is broadcast live each Saturday at 4 p.m. ET from WMMB's Showcase Studio at the Florida Marketplace in Melbourne, Fla. WMMB can be heard in Brevard County on 1240 AM and 1350 AM. The show can be heard live on the Internet at http://www.wmmbam.com.
The weekly program is hosted by veteran aerospace writer and commentator Jim Banke, owner and president of MILA Solutions, LLC.
Listeners can participate in the program by calling into the studio at 321-768-1240. Local ATT Wireless customers can call at no charge by dialing *1240. Questions and comments also can be sent to spacetalking@aol.com or via Twitter at http://www.twitter.com/spacetalking.
About Jim Banke: Banke spent 16 years covering the space program for Florida Today newspaper and Space.com as an award-winning journalist. He later worked for the Space Foundation as Vice President for Florida Operations. Banke also was a Space Launch Development Analyst for SAIC and worked closely with Space Florida. Banke was a member of Gov. Jeb Bush's Commission on the Future of Space and Aeronautics in Florida and in 2007 was honored with NASA's Distinguished Public Service Medal. He is now president of MILA Solutions, LLC, a consulting firm that provides media services, project management and strategic communications for aerospace-related ventures.
Labels:
Dr Zooch,
Radio,
Sport Rocketry: Cool Stuff
My MicroMaxx fleet
Labels:
My Projects: MicroMaxx
MicroMaxx Tomahawk recovered

Last week, after launching from my driveway, I lost my Quest MicroMaxx Tomahawk Cruise Missile. Well, I was chatting with my neighbor and discovered that he had found it in his flower bed. Welcome home!
Labels:
My Projects: MicroMaxx,
Solo-Launches
Thursday, August 27, 2009
Underground rocket (?)
Verizon is in the process of installing FIOS in our neighborhood. Yay. Maybe. Anyway, they are digging ~5' L x 2' W x 3' D holes at maybe 20' intervals, and then are using this cool pneumatic boring tool to connect them. It appears to have a piston rammer and moves along on its own. The left photo shows a hole with the tool already on its way (out of sight) and the right photo is the tool itself.


I don't know if there are more brands, but one is the Allied Hole Hog.
In rocket performance calculations, you have to compute the wind resistance force = 0.5 * rho*Cd*A * v^2, where rho is density of air = 1.2 kg/m^3. I wonder what the rho of my yard is? :)
I don't know if there are more brands, but one is the Allied Hole Hog.
In rocket performance calculations, you have to compute the wind resistance force = 0.5 * rho*Cd*A * v^2, where rho is density of air = 1.2 kg/m^3. I wonder what the rho of my yard is? :)
Wednesday, August 26, 2009
Of Warthogs and Binders (Extreme Rocketry 80)
I just got hold of some issues of Extreme Rocketry. Issue 80's (April 2009) cover story is a report on MDRA's Red Glare V. Author/photographer Mark Canepa really gets around as he is also a big contributor to Rockets Magazine.Mark did a good job on the RG-V article. It features interviews with two of my closest rocket buddies - Don Brown and Richard Hickok (hence the title). Which makes it even better ;)
This issue's interview is with one Mike Gross. Mike is a lesser known rocketeer than many of those I've seen interviewed. Nevertheless, the interview articles are one of my favorite features in ER and this one features a really cool Level-3 stretched Fat Boy.
There's also a launch report on October Skies 2008, a short article on ER owner Brent McNeely's re-certification rocket, an overview of ground support equipment and a continuation of Alan Whitmore's EX/Research series. I always complain about the lack of tech articles but these show another pitfall. That is, they range from too simple to too technical (for me, of course).
Finally, the featured project is Richard's smaller Binder (from Futurama). Cool.
Tuesday, August 25, 2009
2009 NGLLC: First Attempts (UPDATE)
Update: For the record, this is a cross post, via my Google Reader, from The Launch Pad.
2009 NGLLC: First Attempts: "
Today, we are very excited to announce the first group of 2009 Northrop Grumman Lunar Lander Challenge attempts!
First off, a quick refresher about the prize, which is designed to accelerate technological developments supporting the commercial creation of vertical take-off and landing rockets with enhanced safety and performance.
The Challenge is divided into two levels. Level 1, requires a rocket to take off from a designated launch area; climb to a low, fixed altitude; and fly for at least 90 seconds before landing precisely on a different landing pad. The flight must then be repeated in reverse. Both flights, along with all of the necessary preparation for each, must take place within a two and a half hour period. $500,000 in prizes were allocated to Level 1, including both the $350,000 first place prize previously awarded to Armadillo Aerospace as well as the presently unclaimed $150,000 award for second place.
The more difficult course, Level 2, requires the rocket to fly for twice as long the Level 1 mission before landing precisely on a simulated lunar surface constructed with craters and boulders. The minimum flight times are calculated so that the Level 2 mission closely simulates the power needed to perform a real descent from lunar orbit down to the surface of the Moon. A $1 million First Place and a $500,000 second place prize remain to be claimed by the winners of Level 2.
In previous years, the Northrop Grumman Lunar Lander Challenge prize money had only been available to teams who performed the required missions at a specific, single location on a particular weekend. This year, however, teams are permitted to make their prize winning attempts at a date and location of their choosing during a window that stretches through the end of October. At the end of the window, any teams that have accomplished the mission will be ranked based on the landing accuracy achieved in each of their rocket powered flights, and the prize purses will be awarded accordingly.
Qualified teams are able to register for prize-winning attempts on a first-come, first-served basis, with a small crew of judges and observers traveling to meet the team at a venue of their choosing. Teams may submit registration forms through September 15, 2009, so we may continue to see new attempts added to this list.
The attempts we announced today are as follows:
These launches will not be open to the general public unless otherwise specified by the teams themselves. However, we'll be doing our best to carry information about the launches to you all as quickly and completely as possible!
Please join us in wishing each of these teams the best of luck. Their efforts and successes are an inspiration to all of us, and are an excellent boon to the space industry. Please also join us in expressing appreciation for our partners in this effort, without whom, none of this would be possible. These include: NASA's Centennial Challenges program, which provides the prize purses; Northrop Grumman, which donates the funds to cover the operation of the prize, and Spaceport America and others in southern New Mexico, who graciously hosted the first three years of the competition.
2009 NGLLC: First Attempts: "
Today, we are very excited to announce the first group of 2009 Northrop Grumman Lunar Lander Challenge attempts!First off, a quick refresher about the prize, which is designed to accelerate technological developments supporting the commercial creation of vertical take-off and landing rockets with enhanced safety and performance.
The Challenge is divided into two levels. Level 1, requires a rocket to take off from a designated launch area; climb to a low, fixed altitude; and fly for at least 90 seconds before landing precisely on a different landing pad. The flight must then be repeated in reverse. Both flights, along with all of the necessary preparation for each, must take place within a two and a half hour period. $500,000 in prizes were allocated to Level 1, including both the $350,000 first place prize previously awarded to Armadillo Aerospace as well as the presently unclaimed $150,000 award for second place.
The more difficult course, Level 2, requires the rocket to fly for twice as long the Level 1 mission before landing precisely on a simulated lunar surface constructed with craters and boulders. The minimum flight times are calculated so that the Level 2 mission closely simulates the power needed to perform a real descent from lunar orbit down to the surface of the Moon. A $1 million First Place and a $500,000 second place prize remain to be claimed by the winners of Level 2.
In previous years, the Northrop Grumman Lunar Lander Challenge prize money had only been available to teams who performed the required missions at a specific, single location on a particular weekend. This year, however, teams are permitted to make their prize winning attempts at a date and location of their choosing during a window that stretches through the end of October. At the end of the window, any teams that have accomplished the mission will be ranked based on the landing accuracy achieved in each of their rocket powered flights, and the prize purses will be awarded accordingly.
Qualified teams are able to register for prize-winning attempts on a first-come, first-served basis, with a small crew of judges and observers traveling to meet the team at a venue of their choosing. Teams may submit registration forms through September 15, 2009, so we may continue to see new attempts added to this list.
The attempts we announced today are as follows:
- Armadillo Aerospace will attempt to claim a Level 2 purse from Caddo Mills, TX, on September 12 and 13.
- Masten Space Systems will attempt to claim purses in both levels from Mojave, CA, on September 15-16 (Level One), October 7-8 (Level Two), and October 28-29 (Level Two).
- Unreasonable Rocket will attempt to claim purses in both levels from Cantil, CA, on Oct 30-31.
These launches will not be open to the general public unless otherwise specified by the teams themselves. However, we'll be doing our best to carry information about the launches to you all as quickly and completely as possible!
Please join us in wishing each of these teams the best of luck. Their efforts and successes are an inspiration to all of us, and are an excellent boon to the space industry. Please also join us in expressing appreciation for our partners in this effort, without whom, none of this would be possible. These include: NASA's Centennial Challenges program, which provides the prize purses; Northrop Grumman, which donates the funds to cover the operation of the prize, and Spaceport America and others in southern New Mexico, who graciously hosted the first three years of the competition.
Labels:
Armadillo,
Masten,
Unreasonable Rocket,
X-Prize Cup
Movie comment explanation
As an aside in my previous post, I described Evil Dead II and Quarantine as being crappy. I'll leave the synopses to IMDB, but wanted to make a couple of comments.
I was a little surprised about Evil Dead II considering I really like Army of Darkness, a.k.a. Evil Dead III. I can only attribute this to the replacement of the gratuitous gore of II with slapstick humor in III. And the stop-motion animated skeletons were cool and rubber mask ghouls, well, not so much.
The crappiness of Quarantine was partly because it just seems that you can only do so much in one stinkin' building. But also because the Blair Witch-like shaky cam really sucks. (Well, mostly - I did like Cloverfield a lot.) Finally, darkness can make a scary movie scarier but also can make a non-scary movie boring. The highlight of this movie was Dexter's sister, Jennifer Carpenter. Not that she was great, but she reminded me that the new season of Dexter is coming soon!
I was a little surprised about Evil Dead II considering I really like Army of Darkness, a.k.a. Evil Dead III. I can only attribute this to the replacement of the gratuitous gore of II with slapstick humor in III. And the stop-motion animated skeletons were cool and rubber mask ghouls, well, not so much.
The crappiness of Quarantine was partly because it just seems that you can only do so much in one stinkin' building. But also because the Blair Witch-like shaky cam really sucks. (Well, mostly - I did like Cloverfield a lot.) Finally, darkness can make a scary movie scarier but also can make a non-scary movie boring. The highlight of this movie was Dexter's sister, Jennifer Carpenter. Not that she was great, but she reminded me that the new season of Dexter is coming soon!
Labels:
Visual Media: Movies
Instructables Frisbee Saucer - told ya' I'd add a motor mount
The wife was at bridge. I had finished watching two crappy movies - Evil Dead II and Quarantine. I wanted more excitement so I decided to print a flying saucer. I built a card stock saucer based on the Instructables paper Frisbee. Here's what I did:- I downloaded the .pdf format patterns from their web site.
- I printed two copies on light card stock - the decorated version for the top of the saucer and a blank one for the bottom.
- The top was cut and scored as directed. It was easier to form than I expected. The results are shown in the right of the top photo.
- The bottom is folded differently than the top and is shown on the left of this photo. Although I scored all the dotted lines, I didn't need to score the inner circumferential path.
I then flipped the bottom over and glued it to the top. I used a light coat of white glue along the connecting outer surfaces and a bead along the crest of the valley fold on the top piece. (I know that description is clear as mud but it's late and I'm sleepy. I'm sure you can figure it out.) The second photo shows the result. I let the glue fully dry before proceeding.- It seems a little flimsier than an Art Applewhite 24mm card stock saucer due to the weight of the card stock I had on hand. I decided to go for 24mm anyway. I laid a section of tube over the top and bottom peaks, marked the perimeter, and cut the holes with an Exacto knife.

I then glued the tube in and applied a heavy fillet on top and bottom. This photo shows the result next to an Art Applewhite 24mm Super Cinco.- When the fillets are set, I'll notch the top and bottom to accommodate the launch rod.
Monday, August 24, 2009
Cold Power rocketry
The graybeards of model rocketry, and many younger fan-atics, will undoubtedly know more about Vashon and Estes Cold Power rockets than I, and I won't make this a tutorial. These rockets/motors still pop up on EBay and Wes "Dr. Zooch" Oleszewski has several. Wes is a regular at MDRA and flew them several times at this past weekend's launch. He flew them in his Mark II kits and the performance was quite impressive, probably equaling 'B' impulse. He used readily available airbrush propellant and painted the bottle flat black to improve performance.


He also took the time to explain to me how both the Estes (which he prefers) and Vashon varieties work. I can't remember the Vashon details, but will recount how the Estes ejection works. This is pretty cool. The top of the motor has a rubbery insert with tabs that fit through the motor's wall. You slide a spring powered plunger over the motor and, when the motor is pressurized, the rubber tabs bulge out and old it in place. As the propellant is expelled, these slowly release until the plunger lets go and pops the 'chute. He says they go for about $150 so they aren't cheap. If you bid on one, he warns to ask the seller if the rubber tabs are cracked and if the trigger release on the launcher is operational. If the answer is 'no' and 'yes', in that order, then it is a good buy.
If you want one, I'd recommend contacting Wes. He's always willing to help out and really knows about these things. While you're at it, order a Mark II to fly your new Cold Power motor in.
PS - Here's a good thread on the good Dr's efforts.


He also took the time to explain to me how both the Estes (which he prefers) and Vashon varieties work. I can't remember the Vashon details, but will recount how the Estes ejection works. This is pretty cool. The top of the motor has a rubbery insert with tabs that fit through the motor's wall. You slide a spring powered plunger over the motor and, when the motor is pressurized, the rubber tabs bulge out and old it in place. As the propellant is expelled, these slowly release until the plunger lets go and pops the 'chute. He says they go for about $150 so they aren't cheap. If you bid on one, he warns to ask the seller if the rubber tabs are cracked and if the trigger release on the launcher is operational. If the answer is 'no' and 'yes', in that order, then it is a good buy.
If you want one, I'd recommend contacting Wes. He's always willing to help out and really knows about these things. While you're at it, order a Mark II to fly your new Cold Power motor in.
PS - Here's a good thread on the good Dr's efforts.
Morning Glory clouds on APOD

Via APOD, here are some interesting clouds seen over Australia. Here's the Wikipedia entry describing Morning Glory clouds. Credit & Licence: Mick Petroff.
Labels:
Sciences: Meteorology
Sunday, August 23, 2009
Launch Report 2009-7
Location: Location: Central Sod Farm, Centreville, MD (MDRA ESL-135)
Weather: mid-80's, calm to slightly breezy
Total flights: Today - 9; YTD - 60
Total motors: Today - 14; YTD - 72
Paul was there first and had saved spaces for Don and I. As usual, I mooched their shade. I met another on line acquaintance, Brett.
The field was drier than I expected and I missed the major puddles...except for the one mud pit. But that's a separate story.
My flights:
Find more photos like this on Our Planet
Weather: mid-80's, calm to slightly breezy
Total flights: Today - 9; YTD - 60
Total motors: Today - 14; YTD - 72
Paul was there first and had saved spaces for Don and I. As usual, I mooched their shade. I met another on line acquaintance, Brett.
The field was drier than I expected and I missed the major puddles...except for the one mud pit. But that's a separate story.
My flights:
- First Flight Semi Sonic on a C6-5 - Quick flight and I lost it in the sun. Despite the seemingly light breeze, I had a long walk.
- First Flight Semi Sonic on a B6-4 - Nice straight flight with ejection at apogee. The walk was much shorter this time!
- Launch Pad Rapier on an F39-4 - Great flight.
- Ringer on a G71-5 - Good flight no matter what they said about how the rocket looks.
- Hat of Death in four D12-Ps - All four motors lit but the flight was unstable. I'm wondering if the core shifted in the hat.
- Thoy Snipe on three D12-5s - Excellent flight with ejection at apogee.
- MicroMaxx Saucer on 'Roids on a C6-3 - Really fast and high flight (for a small saucer). Landed 4' from the pad.
- MicroMaxx Saucer on 'Roids on a C6-3 - Same flight profile.
- Art Applewhite Delta Saucer on a Micro Hybrid - On ignition, the motor spewed a bit of gas and then it tore off the pad. It wobbled at apogee and the motor fell out. The masking tape that was holding it in from the top melted.
Find more photos like this on Our Planet
More on the Purdue/Penn State/AFOSR/NASA ALICE propellant
With a hat tip to brianc:
Labels:
ALICE,
Space: Advanced Propulsion,
Space: NASA,
USAF
Saturday, August 22, 2009
El Paso and Juaréz from space

This NASA image really illustrates the difference in population density between El Paso, TX and Ciudad Juaréz, Mexico. Well, I thought it was interesting.
Labels:
Space: NASA,
Texas: El Paso
Antsy
Scheduling conflict tomorrow. Hopefully will fly Sunday of the cold front gets outta Dodge and successfully deflects Bill. A couple of motors built and a couple of the rockets prepped...
Labels:
Non-Launch Reports
Friday, August 21, 2009
Is it a Mongoose?
Looks to me like the Perdue ALICE test rocket is a Performance Rocketry 98mm carbon Mongoose.
The future of solid propellant oxidizers - ice (?)
That's right, plain old water ice. Via PRNewswire (my highlights, photo credit: Dr. Steven F. Son, Purdue University):WASHINGTON, Aug. 21 /PRNewswire-USNewswire/ -- NASA and the Air Force Office of Scientific Research, or AFOSR, have successfully launched a small rocket using an environmentally-friendly, safe propellant comprised of aluminum powder and water ice, called ALICE.
"This collaboration has been an opportunity for graduate students to work on an environmentally-friendly propellant that can be used for flight on Earth and used in long distance space missions," said NASA Chief Engineer Mike Ryschkewitsch at NASA Headquarters in Washington. "These sorts of university-led experimental projects encourage a new generation of aerospace engineers to think outside of the box and look at new ways for NASA to meet our exploration goals."
Using ALICE as fuel, a nine-foot rocket soared to a height of 1,300 feet over Purdue University's Scholer farms in Indiana earlier this month. ALICE is generating excitement among researchers because this energetic propellant has the potential to replace some liquid or solid propellants. When it is optimized, it could have a higher performance than conventional propellants.
"By funding this collaborative research with NASA, Purdue University and the Pennsylvania State University, AFOSR continues to promote basic research breakthroughs for the future of the Air Force," said Dr. Brendan Godfrey, director of AFOSR.
ALICE has the consistency of toothpaste when made. It can be fit into molds and then cooled to -30 C 24 hours before flight. The propellant has a high burn rate and achieved a maximum thrust of 650 pounds during this test.
"A sustained collaborative research effort on the fundamentals of the combustion of nanoscale aluminum and water over the last few years led to the success of this flight," said Dr. Steven F. Son, a research team member from Purdue. "ALICE can be improved with the addition of oxidizers and become a potential solid rocket propellant on Earth. Theoretically, ALICE can be manufactured in distant places like the moon or Mars, instead of being transported to distant locations at high cost."
For more information about the Air Force Office of Scientific Research, visit:
http://www.wpafb.af.mil/AFRL/afosr/
For more information about NASA and agency programs, visit:
http://www.nasa.gov
Thursday, August 20, 2009
Bacon, now for dessert too!
Bacon cupcakes, to have after you have washed your bacon explosion down with your bacon vodka. Mmm, mmm, good!
Goony F104 Starfighter
If you follow this photo back to the Flickr user's photo stream, you'll see a whole fleet of the cute, 'Goony" airplanes. Sweep those wings back a bit and it might fly. I've got to think about something like this for my next Estes SS1 kitbash.
Labels:
My Projects: Project Ideas
How to: Cardboard Frisbee Flying Saucer

Make points to an Instructables article on making this paper Frisbee. I of course would want to add a motor mount.
Wednesday, August 19, 2009
Another use for a small fan blade
From the NARAM-51 sports range.
Labels:
NARAM,
Sport Rocketry: Odd-Rocs
Verna and Randy's Vipers strike...again!
Their Red Squadron of Vipers were featured as their Photo of the Month, which led to a Dungeon post. Then the Italian Hobby Media site found them, which led to a Make:blog post.
MicroMaxx Alien UFO on 'Roids
Since I have two...I thought I'd cut and grind one of them up.
I cut the MicroMaxx motor mount out with my mini-Leatherman and then took the Dremel to the inner ring until an 18mm tube fit. The cuts are shown in the following photos.


The connection point for the lower fins were weakened so I added some supports cut from a scrap plastic model. I attached a fiber ring on the outside of a short 18mm tube. This fits in between the inner ring and the lower fins. I used 5-minute epoxy to fill the small space between the top ring and the motor tube. Fillets were also added to the point where the fins touch the motor tube. A 1/8" launch lug completed the mod.

Hurricane Bill allowing, this will fly on a C6-3 at this weekend's MDRA launch.
I cut the MicroMaxx motor mount out with my mini-Leatherman and then took the Dremel to the inner ring until an 18mm tube fit. The cuts are shown in the following photos.


The connection point for the lower fins were weakened so I added some supports cut from a scrap plastic model. I attached a fiber ring on the outside of a short 18mm tube. This fits in between the inner ring and the lower fins. I used 5-minute epoxy to fill the small space between the top ring and the motor tube. Fillets were also added to the point where the fins touch the motor tube. A 1/8" launch lug completed the mod.

Hurricane Bill allowing, this will fly on a C6-3 at this weekend's MDRA launch.
Tuesday, August 18, 2009
Launch Report 2009-6 (solo #1)
This was my first 'solo' launch in quite a while and, breaking with my previous policy, decided to tag/log this in the 2009 launch sequence. This will make sure I don't mess up my flight counts.
Location: Derwood Test Range
Weather: 90's, calm
Total flights: Today - 10; YTD - 51
Total motors: Today - 10; YTD - 58
All my flights were MicroMaxx and I learned that my yard is only suitable for MicroMaxx saucers and monocopters. I used a mix of the Quest Q2 igniters (not the Q2G2 dipped ones) and the new ones being shipped with the MicroMaxx motors. The latter looks just like the Q2's but have no pyrogen. These were all easy to set up and I had 100% ignition success with my Pratt GO Box. For all rockets but the monos, I bent the igniter below the bead and taped it to a small piece of cardboard. The rockets were supported by the igniter. On the monos, I spread the leads below the bead, slid the igniter in, and carefully hooked the leads onto a small nail on the corner of my pad. Everything stayed in place just fine.
My flights:
Location: Derwood Test Range
Weather: 90's, calm
Total flights: Today - 10; YTD - 51
Total motors: Today - 10; YTD - 58
All my flights were MicroMaxx and I learned that my yard is only suitable for MicroMaxx saucers and monocopters. I used a mix of the Quest Q2 igniters (not the Q2G2 dipped ones) and the new ones being shipped with the MicroMaxx motors. The latter looks just like the Q2's but have no pyrogen. These were all easy to set up and I had 100% ignition success with my Pratt GO Box. For all rockets but the monos, I bent the igniter below the bead and taped it to a small piece of cardboard. The rockets were supported by the igniter. On the monos, I spread the leads below the bead, slid the igniter in, and carefully hooked the leads onto a small nail on the corner of my pad. Everything stayed in place just fine.
My flights:
- Quest Alien UFO saucer - This was the lowest flier, but the flight was fine.
- Art Applewhite MicroMaxx Flying Saucer - Flew slightly higher than the Quest plastic saucer.
- Tri-ny F-O Saucer - Flew slightly higher than the Art Applewhite saucer.
- My Little Cupcake - My cupcake paper 'saucer' beat them all.
- Quest Space Fighter - This swooped back over the house. I though it was on the roof when, boink, it landed the other direction in the street. This needed wadding...the mylar streamer is toast.
- Quest Tomahawk Cruise Missile - So much for this being a brick - lost :(
- Nothin' But Tape - This all-duct tape rocket flew fast and landed 6' from the pad.
- The Amazing Underperforming Mono-Nano-Copter - This was my first micro-monocopter. Flew to ~4 feet.
- Cicada Killer - This monocopter went to about 6'.
- Art Applewhite MicroMaxx Monocopter, Mark II - This only went to 4'. I thought it flew better than my other monos. Maybe the cardstock has warped and the wing pitch has changed? I have no idea.
Monday, August 17, 2009
More on the Raygun Gothic Rocketship
There's an official web site with lots of info (photos, videos, data). Here's a direct link to the Flickr pool (embedded photos from NataliaEnvy). You just gotta love a huge nose cone.


Inflatable Re-entry Vehicle Experiment (IRVE) a huge success

When I reported on today's Black Brant 9 launch from Wallops, the IRVE took a back-back-seat, and it shouldn't have. Parabolic Arc passes along that the 10-foot diameter heat shield, which is made from silicone-coated industrial fabric, deployed successfully. I don't know how promising this technology is, but it sounds like it could be :) (Photo Credit: NASA/Sean Smith)
Labels:
Space: NASA LaRC,
Space: NASA Wallops
Popular Mechanics, September 2009
I went ahead and picked up a copy just to see Steve Eves' Saturn V in a mainstream magazine :)
I was a little disappointed to find Steve was only given a one page blurb. Still, it was great to see his efforts were recognized!
I was also happy to see other rocket references in the magazine. There's a nice article on SpaceX's Falcon and Dragon capsule. It showcases their lead propulsion guru, Tom Muller. I didn't know it but he was both a prefessional propulsion engineer ay TRW and an amateur who flew with the Reaction Research Society. I used past tense because his latest project was put on the backburner when he signed on with SpaceX.
There's also an ad for a new show, named brink, that will air on the Science Channel (date unknown). One of the features will be plasma/fusion rockets. I'll have to Google this later.
There's also a good article on the Mythbusters' Jaime Hyneman and Adam Savage. These guys may have the best job in the universe. They were also guest editors for the entire issue.
Other missile-aneous things I saw of interest: we are in the "age of the exoplanet"; high tech crash test dummies made from tupperware, gelatin and live celery; metamaterial sonar cloaking; the brilliant National Synchrotron Light Source II; the other 9 Backyard Geniuses; 20% off coupon at Harbor Freight; CA and baking soda for parts creation. And those are just my fav tidbits.
I was a little disappointed to find Steve was only given a one page blurb. Still, it was great to see his efforts were recognized!
I was also happy to see other rocket references in the magazine. There's a nice article on SpaceX's Falcon and Dragon capsule. It showcases their lead propulsion guru, Tom Muller. I didn't know it but he was both a prefessional propulsion engineer ay TRW and an amateur who flew with the Reaction Research Society. I used past tense because his latest project was put on the backburner when he signed on with SpaceX.
There's also an ad for a new show, named brink, that will air on the Science Channel (date unknown). One of the features will be plasma/fusion rockets. I'll have to Google this later.
There's also a good article on the Mythbusters' Jaime Hyneman and Adam Savage. These guys may have the best job in the universe. They were also guest editors for the entire issue.
Other missile-aneous things I saw of interest: we are in the "age of the exoplanet"; high tech crash test dummies made from tupperware, gelatin and live celery; metamaterial sonar cloaking; the brilliant National Synchrotron Light Source II; the other 9 Backyard Geniuses; 20% off coupon at Harbor Freight; CA and baking soda for parts creation. And those are just my fav tidbits.
Labels:
Books and Magazines,
Mythbusters,
SpaceX,
Steve Eves' Saturn V
GPSIIR21 Video Highlights
GPSIIR21 Highlights, originally uploaded by Air Force Space Command.
Here is more info from another of this Flickr user's posts:
Cape Canaveral AFS, Fla (Aug. 17, 2009) - A United Launch Alliance
Delta II rocket blasts off with the Air Force's Global Positioning System
IIR-21 satellite from Space Launch Complex-17A at 6:35 a.m. EDT today. This
was the 48th successful and last in a series of GPS launches on a Delta II
rocket ending an era that began in February 1989. During that time, the
Delta II/GPS tandem boasted a 98 percent mission success rate. ...
Viper sounding rocket?
After the MLAS launch I must have taken NASA Wallops off my Twitter feed. This morning Peter Stanley posted a report about another launch. Surrounding the main event, a Black Brant IX launch carrying the IRVE payload, they shot Vipers to check out the high altitude meteoroloical conditions before and around launch time. What actually caught my eye was that I didn't know what a Viper is (the real-world one, not the one from Battlestar Galactica). It doesn't appear on Wallops' Sounding Rocket vehicles list - but Astronautix tells me that it is a Loki-Dart derivative whose heritage dates to the 1960's.
P.S. I added Wallops back to my followers list.
P.S. I added Wallops back to my followers list.
Sunday, August 16, 2009
Snapple fact #914
A manned rocket can reach the moon in less time than it took for a stagecoach to travel the length of England.
Labels:
Missile-aneous
Steve Eves - backyard genius
The Akron Beacon Journal reports that Steve Eves has received one of Popular Mechanics' 2009 Backyard Genius Awards for launching and successfully recovering the world's largest sport rocket. (This is great, and I won't put word's in his mouth, but I think having his rocket on display at the U.S. Space and Rocket Center in Huntsville is still the biggest honor!)
(Reportedly, this is in the print magazine but I didn't see in on the Pop Mech web site.)
(Reportedly, this is in the print magazine but I didn't see in on the Pop Mech web site.)
Another glaring example of poor spelling
It wasn't something I wrote, but was nevertheless embarrassing. Fixed now.
Labels:
About the Dungeon
Back to the clear fins for the 8" MLAS
Let's see, I documented Tim Wilson's MLAS model as being 19.8" in diameter BUT I now see the Rsim that he provided was actually 10.5" in diameter. The 19.8 figure stuck in my mind even though I used the 10.5 to scale the Rsim. So, my mind said that, if a 19" version came in at a whopping 12lb, that mine, as a WAG, should be around 6 lb. However, if the Rsim reflects the as-built, mine would probably weigh closer to the 12 than the 6. I think this is too much over the weight I'd be shooting for. So, the search for clear, square tubing is BACK ON.
For someone so interested in the MLAS, I've been snoozin'

I missed most of this YORF thread. The attached photo is what Quest came up with in 8 hours to start testing. :drooling: There's also an inference that sandman, who did the parts for wolsotr's 19" dia. model is making a smaller version of his own. WANT^2
Labels:
My Projects: Quest MLAS,
WANT,
YORF
Large static rocket display planned for Burning Man
If you attend Burning Man 2009, you will be cable to climb the 25' gantry and cross a 10' walkway into the 42', aluminum, 1940's retro-style Raygun Gothic Rocketship. (Cue the sound of the LP scratching to a halt...it sound like you may go into the ship and down the gantry...ooops.) Inside you can explore the armory, biosciences lab, and engine room. The engine room will feature six 'power cells' complete with a 12KV lightning effect. This rocket may not launch, but it still sounds cool. (from cnet's geek gestalt via Clark Lindsey)
Here's a brief video about the 'engines':
Here's a brief video about the 'engines':
Labels:
Burning Man,
Raygun Gothic Rocketship
Saturday, August 15, 2009
Lander photo (comments updated)
Armadillo's latest lander. Is that a VGA monitor on the top?
Update: Clark Lindsey reports that Armadillo will go for Level-2 of the Northrop Grumman Lunar Lander Challenge over the Labor Day weekend.
Labels:
Armadillo,
X-Prize Cup
Project Pluto

I've always thought the Project Pluto Supersonic Low Altitude Missile (SLAM) was cool looking and would make a fun scale subject. As I mentioned earlier, there are photos of one flying at NARAM. But before that, there was Mark Schrader's DESCON15 entry. It came in 1st, so I guess others liked it too. He based his on the scale drawings in Spaceship Handbook by Jack Hagerty and Jon C. Rogers, but there are other resources to look at. With some redundancy:
- Wikipedia entry
- The Flying Crowbar, Air Space Magazine, April/May 1990, Volume 5 No. 1, page 28
- Designation-Systems
- Vought SLAM page
So, do I even need/want clear fins on my MLAS?
For some reason, I've been chicken about its stability. However, the RSim model I'm basing mine on was made by someone on the NASA team that directed its development and he stated his model agreed closely with wind tunnel measurements. And now that I've seen that one actually flew, I'm beginning to ask "why clear fins?" Maybe, I'll retreat and assess the amount of weight needed to make it stable. I was thinking about using a 38mm G185, which has a lot of lifting power. And with that mount I can always move up! Opinions?
NARAM-51, stick a fork in it
Page 1
- The flight sequence of the Star Wars X-Wing (there's also a video, below)
- The launch of the Saturn V with boosters (even though it looks like it lost one)
- The Project Pluto SLAM (mid-page)
- The rocket with the large ring fins (3/4 of the way down). I saw from a previous photo that is was called Starship Enterprise. I still don't know where it is from.
- The MLAS is near the bottom.
- There are many good shots but I liked the tail view of the Time Twister.
- More of the rockets I mentioned above.
- I'm hoping a MLAS video will pop up somewhere, but for now here's the X-Wing:
Labels:
My Projects: Quest MLAS,
NARAM,
Sport Rocketry: Videos,
X-Wing
Friday, August 14, 2009
Peace, love, and rock 'n' roll, 40 years ago

Lots of anniversaries this year - tomorrow marks the 40th of the Woodstock Music & Art Fair. Even those of us who didn't attend got a lot of enjoyment from the event.
So many good videos to choose from, and here's one:
Naram Live - Thursday
Whut I thunk wuz kool:
Page 1 - Starting about 3/4 of the way down:
Page 2 -
Page 1 - Starting about 3/4 of the way down:
- A big rocket with a huge Easter egg as the cone. The NARAM equivalent of a bowling ball rocket?
- A cool sci-fi looking ducted rocket. Followed by a shot of it bending in flight.
- A Devo-themed rocket and flier. But I'm not up on that band. Take a look and leave a comment if I named the wrong one.
Page 2 -- A BIG pencil.
- Pre- through post-recovery of a cool rocket, the Time Twister, consisting of three spiraled tubes (not tubes with spirals). Here's a shot I took of it last year (also see Chris' video, below). -->
- A toilet paper rocket...with the toilet paper still wound on it.
- A BIG Shuttle
- There's that cool Saturn V with SRBs.
- This was full of nice detailed shots of the scale judging.
- The best was athe Saturn/SRB, the MLAS, and, about half way down the page, a ring fin rocket that I don't recognize.
- If the MLAS was judged, I assume it had to fly. Wish there had been a shot of that.
Labels:
NARAM,
Sport Rocketry: Videos
Thursday, August 13, 2009
While on the subject of making nose cones...

A while back, someone on some forum (Rocketry Planet?) described a method of making tail cones and transitions by removing triangular slivers of the body tube and pulling the gaps together. As I remember, several people then tried and liked the method. Me too! I made the tail cone for my CrayShipOne and even a el-cheapo 3" nose cone (pictured). I say el-cheapo, not because it was inexpensive (basically free), but because I only made 4 slits. The result is chunky looking cone. With this method, the more slits you make the better the result.
Recently, Serge Pipko documented how he uses this technique (a link to translate the site to English is provided). A new blogger, Rocketmanbkk also shows his results with this 'Crown Method'. Quite impressive results.
NARAM Live - Wednesday Stuff
The highlights of page 1, and of the three photo pages, was Vern Estes and his original Big Bertha - a staple at NARAM. I also liked the 'cherry picker' recovery shots. Here's the best video, a single motor 'bicopter'.
Labels:
NARAM,
Sport Rocketry: Videos
Wednesday, August 12, 2009
Design inspiration comes from the oddest places
brianc reports on his latest design, which is modeled after the image of a fireball from a Perseid meteor.

I look all over the place for rocket inspiration, but have never looked to the heavens for it. At least not literally. Way to go Brian!

I look all over the place for rocket inspiration, but have never looked to the heavens for it. At least not literally. Way to go Brian!
Labels:
Sport Rocketry: Cool Stuff
The new nose cone, revealed



I managed to mostly buff out the clouded areas but the finish is not great. I'm going to wait a few days, lightly sand it, and shoot another coat.
Labels:
My Projects: Foam nose cone fab
Manufacturer's Forum notes
OK, I broke down and listed to the .mp3 of the NARAM Manufacturer's Forum. I skipped along so I could have missed a juicy tidbit...
AT - no new news I hadn't heard
ARA Press - ditto
Balsa Machining Service - now carries AeroTech Motors
Chutes by Boe - skipped
FlisKits - Jim caught pneumonia and was a no show. He's on meds and hopefully will be mended soon.
Quest - Bill Stine got right to the issue of the coming line of D/E/F BP motors and the news wasn't good. The process for getting EX numbers has gotten a lot more difficult and that, coupled with the economy, caused him to pull the plug on the process last year. However, they are doing better and have restarted the project. Having them manufactured in China makes the process more difficult. With no EX numbers you need to deal with Customs and the Coast Guard. The D motors may be out this year. With the F's a year away (my guess, not Bill's) I can free up some motor money for other stuff.
Q2G2 igniters with 8" leads should be out nominally in a month. Presented his new(ish) How High altimeter and a few kits. An Ares model is coming. Was delayed by changes to NASA's plans. They froze the design even if it doesn't match what NASA builds.. Yes the MLAS is coming, but no date was given. Shrox is on-board as an animator/designer.
At that point I gave up. The quality of the audio made it tough to follow on the laptop.
AT - no new news I hadn't heard
ARA Press - ditto
Balsa Machining Service - now carries AeroTech Motors
Chutes by Boe - skipped
FlisKits - Jim caught pneumonia and was a no show. He's on meds and hopefully will be mended soon.
Quest - Bill Stine got right to the issue of the coming line of D/E/F BP motors and the news wasn't good. The process for getting EX numbers has gotten a lot more difficult and that, coupled with the economy, caused him to pull the plug on the process last year. However, they are doing better and have restarted the project. Having them manufactured in China makes the process more difficult. With no EX numbers you need to deal with Customs and the Coast Guard. The D motors may be out this year. With the F's a year away (my guess, not Bill's) I can free up some motor money for other stuff.
Q2G2 igniters with 8" leads should be out nominally in a month. Presented his new(ish) How High altimeter and a few kits. An Ares model is coming. Was delayed by changes to NASA's plans. They froze the design even if it doesn't match what NASA builds.. Yes the MLAS is coming, but no date was given. Shrox is on-board as an animator/designer.
At that point I gave up. The quality of the audio made it tough to follow on the laptop.
Labels:
NARAM,
Sport Rocketry: New Products
NARAM Live - Tuesday update
Well, the site error did in fact mean it was being updated, with the first appearing a few minutes after my previous post.
On the first photo page, I noticed an Apollo capsule boosting on its abort motors. These are cute but, having seen them before, quickly moved on. Until...I saw the huge capsule on page 2! Could the photos on the first page be this one boosting? It looks like the builder/owner is Sandman, who is now the owner of Excelsior Rocketry as well as Roachwerks. Page four has photos of the manufacturer's forum. These need captions! I see the MLAS at what is likely Quest's talk. There is an MP3 of the whole event but I think I wait for a report on the forums.
The highlight of the videos (which this time are embeddable) is a show and tell about a big Stealth Qubit that takes its name to the next level. Awesome!
On the first photo page, I noticed an Apollo capsule boosting on its abort motors. These are cute but, having seen them before, quickly moved on. Until...I saw the huge capsule on page 2! Could the photos on the first page be this one boosting? It looks like the builder/owner is Sandman, who is now the owner of Excelsior Rocketry as well as Roachwerks. Page four has photos of the manufacturer's forum. These need captions! I see the MLAS at what is likely Quest's talk. There is an MP3 of the whole event but I think I wait for a report on the forums.
The highlight of the videos (which this time are embeddable) is a show and tell about a big Stealth Qubit that takes its name to the next level. Awesome!
Labels:
NARAM,
Saucer Mania,
Sport Rocketry: Videos
SNAFU Wednesday
So, this morning I found NARAM Live's Tuesday page wasn't updated. TRF is giving database errors. There are no breaking news reports from the manufacturer's forum at NARAM. And, to top it off, the purple Metalcast clouded up on my scratch BT-101 nose cone. This happened to me before - I think this paint is sensitive to ambient humidity. And it is humid.
On the bright side, I see NARAM live is now giving a 404 error, which hopefully means it is being updated. And the sausage and smoked Gouda omelet I ate for breakfast was yummy.
On the bright side, I see NARAM live is now giving a 404 error, which hopefully means it is being updated. And the sausage and smoked Gouda omelet I ate for breakfast was yummy.
Labels:
About the Dungeon
Tuesday, August 11, 2009
Stalled-progress report
The good news is my BT-101 cone is almost filled and primed and is looking good. The bad news is that it is heavy. It and the rest of my first concept for the rocket's design. When I weighed the raw components, I found it wouldn't fly on a D12 (not close) and even on a F35 would require a 55" rod. This is not what I was going for. The configuration of the rear centering strakes aren't conducive to a cluster. I could dump that concept and then end up with a normal 4FNC 29mm or 24mm cluster rocket. This doesn't excite or motivate me so I'll put it on the back burner while I search for that motivation.
I'm also getting closer to wooden fin extensions for the 8" MLAS.
I'm also getting closer to wooden fin extensions for the 8" MLAS.
Labels:
My Projects
Videos of my flights from MDRA's ESL-134
You can now find a videos of my flights (Aeroshell CATO, D-Fusion Bomb, and Stink Bomb) in Peter Abresch's area of the MDRA ESL-134 gallery.
Labels:
Launch Reports,
MDRA,
Sport Rocketry: Videos
Your flights, sliced up at least 9 ways
EMRR just completed a huge update of his site's personal flight profile feature so if you have any doubts that this is the way to keep track of your flying, forget them! You flight profile now includes:
So, be there or be square!
- 12 general stats about all your flight logs
- graphical breakdowns of:
- all the motors you've used by impulse class
- your flights based on seven defined flight types (single stage, cluster, etc)
- motor diameters
- motor manufacturers
- your 10 most flown rockets
- your 10 most flown motors (with or without motor delay considered)
- 5 years of flying by motor class (you can pick the start year)
- 5 years of flying by total motor usage (you can pick the start year)
- (optional) a list of your active rockets with motors used and, if applicable, manufacturer's recommended motors
- (optional) a list of you RIP rockets with motors used and, if applicable, manufacturer's recommended motors
So, be there or be square!
Labels:
EMRR
NARAM Live - Monday recap
Here are the Monday photo pages. Nothing there excited me. I liked the micro Saturn V's on the video page, however.
Labels:
NARAM
Monday, August 10, 2009
Bringing a telescope to the people
The Smithsonian's AirSpace blog notes that 2009 is the 400th anniversary of Galileo’s use of a telescope to examine the Moon, Venus, Jupiter and the Milky Way. This factoid is a side note to the post describing how they are relocating the idle Smithsonian Astrophysical Observatory from Havard, MA to DC.
The Washington Mall is not the best place to view the night sky, or the day sky for that matter. But it is where the people are – people of every shape, size, gender, persuasion. It’s one thing to get people to go where telescopes are, but its quite another to bring telescopes to the people.
NARAM Live - Sunday update
There are a 3 pages of photos from Sunday. The last page has photos of the scale and fantasy scale entries. Yes, the MLAS is represented and there is a cool Saturn V outfitted with SRBs. I hope now that Chris has taken note of the MLAS that he shoots the launch. A video would be nice. There are a few videos from Sunday also but nothing exciting.
Labels:
My Projects: Quest MLAS,
NARAM
Sunday, August 09, 2009
MLAS model spotted on NARAM Live
If you look around here you'll see what I think is a small model of the MLAS. I also think this is a vendor booth so I'm wondering if there is a kit out there?
The big piece of Blue Tube with cones on it threw me...but there IS a Quest box under the table.
If that's Quest's rumored model, the size is quite respectable. Me want!
The big piece of Blue Tube with cones on it threw me...but there IS a Quest box under the table.
If that's Quest's rumored model, the size is quite respectable. Me want!
Labels:
My Projects: Quest MLAS,
NARAM
Rocket competition tips and resources
George Gassaway has compiled a cool competition website for NARAM-51. I especially liked the scale, peanut scale and fantasy scale pages, which include lots of reference links. It's of course too late for NARAM-51, but not for your next project. (hat tip to the bayourat).
Labels:
Links,
Sport Rocketry: Resources
NARAM Live - Saturday recap
The Saturday coverage was smaller than normal. I didn't spot any particular shots that I thought were amazing. I did spot a handful of NARHAMs and MDRA regulars. Kenny (Performance Hobbies) actually set out a set of tables. There are some night launch photos in page 3 and a few more on page 4.
There are also a handful of videos. The 8-saucer drag race was my favorite. The bad news is that I couldn't look at the last few. YouTube began giving errors and even crashed Firefox :eek:
There are also a handful of videos. The 8-saucer drag race was my favorite. The bad news is that I couldn't look at the last few. YouTube began giving errors and even crashed Firefox :eek:
Labels:
NARAM,
Sport Rocketry: Videos
Saturday, August 08, 2009
Putting the ODD back in oddrocs (update)
http://www.flickr.com/photos/bartholomule/3801011485/
Update: There are two photos of this fleet on UROC's Hellfire site. These can be zoomed so you can check out the details.
Update: There are two photos of this fleet on UROC's Hellfire site. These can be zoomed so you can check out the details.
Labels:
Sport Rocketry: Odd-Rocs
Gonna need some high build-up primer
Glassing the cone for my forthcoming BT-101 rocket went pretty smoothly. Well, smoothly isn't exactly accurate. What I meant is that I got it done without glassing myself or my workbench. However, after it dried I found a lot of wavy imperfections. I used odd scraps of fiberglass which left a greater than expected number of spots to sand down, but I'm still not sure what's up with the other subtle bumps and divots. I sanded a lot but as soon as I saw the first sign of pink foam, I quit and moved on to filling. Personally, I find it a lot easier to fill a distinct hole than the low ones I'm seeing. After one pass of SuperFil, it will be time for primer. This is likely to be another 5-foot rocket, i.e. it looks goon as long as you don't get too close.
Labels:
My Projects: Foam nose cone fab
Friday, August 07, 2009
NARAM Live 2009 is LIVE!
Chris Taylor's NARAM-51 coverage has started. There's not much there yet, but keep your eyes open! This year, he's got a YouTube Channel for his videos. That's good because I've always had codec issues with his videos.
BTW, I have always linked to the current site, which generally means the links have gone dead. Now, if you look at the top page, you can also get to the previous 11 NARAMs!
BTW, I have always linked to the current site, which generally means the links have gone dead. Now, if you look at the top page, you can also get to the previous 11 NARAMs!
Labels:
NARAM,
Sport Rocketry: Videos
Denial of service attacks!
I'm sure everyone has heard about the recent denial of service attack that brought Twitter and Facebook down for a while. I hear Blogger was also attacked but luckily Google's protections seem to be more effective. There have been some Blogger problems reported but as far as I can tell I wasn't affected. I mention this because I suppose there could be intermittent outages. If you can't reach the Dungeon, just try back a bit later :)
Labels:
About the Dungeon,
Blogging
Tech junk (aka surplus) supplier listing
Here's a list of brick and mortar surplus suppliers by state. And here are some of the tech junk emporiums that I've previously mentioned.
Labels:
DIY
Rocket Girls #79, barely
Not much was going on in the Dungeon this week and there weren't many rocket girls on the Interweb either.
First, there was a Fark Photoshop event using the following rocket girl:

And here's some racy nose-art:

Finally, one embedded from Flickr:
First, there was a Fark Photoshop event using the following rocket girl:

And here's some racy nose-art:

Finally, one embedded from Flickr:
Labels:
Photoshopped,
Rocket Girls (Mostly)
New sim program: Virtual Range 1.0 for Mac OS X
Matt Wronkiewicz announces the release of a new simulator, Virtual Range 1.0 for Mac OS X. The program computes stability using the US Air Force DATCOM and Barrowman methods. It records maximum altitude, acceleration and time to apogee, and the flight profile is graphed. This program doesn't appear nearly as refines as RockSim, but it is only V1.0 and the price is right. If you have a Macintosh with a G5 or Intel Core CPU, you should take a look - Ballistic Aerospace Technologies: Virtual Range. (hat tip to Clark Lindsey)
Thursday, August 06, 2009
BT-101 rocket ideas
I had these two pieces of BT-101 lying around for a while (hat tip to EMRR) and finally decided to use one.
The cone was an issue for this tube. Standard 4" MPR/HPR cones will fit but seem heavy for this light tubing. I thought about transitioning to a smaller tube since transitions are really easy. I though about this for half a second and then decided to make a cone. You can see how I am doing this in my previous post.
I have no idea what the rocket will look like. I'd like to have some twist so it isn't just another 3/4FNC with a single motor mount. In my often-applied, backasswards method of design, I'll ponder the L/D ratio, the nose cone shape, and various on-line resources to see it might match a 'real-world' rocket or missile.
I've also thought about a design that I came up with shortly after becoming a BAR. This design has a full length motor mount that mates with a plug centered on the nose cone's base. This forms a piston that ejects the cone. No centering rings are used. Instead, the motor tube is centered using 4 strakes at the base. The 'chute resides in between the outer body and the motor tube. Here's the original rocket that used this concept.
I am shocked how often the dimensions of various seemingly random components seem to match up. A thick walled 24mm tube and two thick paint stirrers fit perfectly inside the BT-101. If I go with the design described above, I'll have my strakes with minimal cutting.
This rocket should be fairly light, but I was thinking about a 29mm mount. I'm now feeling a 24mm cluster might be in order.
The cone was an issue for this tube. Standard 4" MPR/HPR cones will fit but seem heavy for this light tubing. I thought about transitioning to a smaller tube since transitions are really easy. I though about this for half a second and then decided to make a cone. You can see how I am doing this in my previous post.
I have no idea what the rocket will look like. I'd like to have some twist so it isn't just another 3/4FNC with a single motor mount. In my often-applied, backasswards method of design, I'll ponder the L/D ratio, the nose cone shape, and various on-line resources to see it might match a 'real-world' rocket or missile.
I've also thought about a design that I came up with shortly after becoming a BAR. This design has a full length motor mount that mates with a plug centered on the nose cone's base. This forms a piston that ejects the cone. No centering rings are used. Instead, the motor tube is centered using 4 strakes at the base. The 'chute resides in between the outer body and the motor tube. Here's the original rocket that used this concept.
I am shocked how often the dimensions of various seemingly random components seem to match up. A thick walled 24mm tube and two thick paint stirrers fit perfectly inside the BT-101. If I go with the design described above, I'll have my strakes with minimal cutting.
This rocket should be fairly light, but I was thinking about a 29mm mount. I'm now feeling a 24mm cluster might be in order.
Labels:
EMRR,
My Projects,
My Projects: SR-2
Foam nose cone fab
While the filler is drying, I thought I'd document how I'm making the nose cone for an unnamed and not yet designed BT-101 model.
- I first cut three rings from a sheet of 2" pink foam using hole cutters. The lower 2 were slightly larger than the tube diameter and the top one was smaller. This will result in a 4" dia. x 6" long cone.
- When turning larger cones on either a hand drill or press, I prefer to use a piece of brass tubing instead of a wooden dowel. I bought a piece of 1/8" tubing from my friendly local hobby shop. Because brass does not turn so well. I fitted a 1" section of dowel on the end of the tubing. This will allow for a nice pointy tip.
- I had a 'surplus' shoulder with a bulkhead already installed so the rod was dry fit through the center of the bulkhead and through the thee foam rings. This ensured alignment as the rings were glued together and the rod was glued in.
- I glued the rings together using wood glue. This is the first time I've used wood glue for this purpose and it seemed to work fine.
- I twisted the shoulder against the cone to score the base and aid in getting the correct diameter.
- Then glued the rod in using quick drying Gorilla Glue. The brass rod hung out the bottom by about an inch and the dowel protruded from the top by about a half inch.
- When dry, I did some rough trimming with a small craft hot-wire cutter.
- I then turned the cone on my drill press using a combo of files and sand paper. The shape was set by eyeball.
- I decided to fill the surface with wood filler. When dry, I'll put the cone back into the press to smooth it out. (I'm wondering if I should have used SuperFil epoxy filler...but too late now.)
- The next step is be to apply a thin layer of glass. I'll then fill imperfections with the epoxy filler.
Labels:
My Projects: Foam nose cone fab
Wednesday, August 05, 2009
Holy early product placement, Batman!
Today, August 5th, I noticed that my local Michael's had their autumn and Halloween products out. Yeah, when it's hot and humid you really feel like stocking up on Halloween decorations.
BTW, I scoured Michaels, Hobby Works, Plaza Art, the dollar store, the 5-dollar store, and even Bed Bath and Beyond for square tubing. Nada. The closest thing I found was too big in diameter and way too flimsy. The search continues.
Oh, I did score some needed supplies and all these stores were basically along the way.
BTW, I scoured Michaels, Hobby Works, Plaza Art, the dollar store, the 5-dollar store, and even Bed Bath and Beyond for square tubing. Nada. The closest thing I found was too big in diameter and way too flimsy. The search continues.
Oh, I did score some needed supplies and all these stores were basically along the way.
Labels:
Halloween,
My Projects
Video of yesterday's Spaceport America launch (with updated commentary)
Here's a cool report from Spaceport America by KRQE. It gives a good look at Moog's rocket boosted UAV and has great launch and landing footage. At the end it shows the Lunar Lander pads and the Spaceport site.
I found one of the Moog rep's comments interesting - they didn't want to spend time in the wind tunnel or over analyzing when they can just go out, launch it, and gather real flight data. :)
Update: A CTI rep. inferred on Rocketry Planet that motor used was one of theirs. Also, for those 'low altitude' flights, MDRA could contract out their field and tower. Any fees would of course be non-commercial donations to the club. I doubt that a flight like this required any resources from the big facility on the other side of the mountains.
I found one of the Moog rep's comments interesting - they didn't want to spend time in the wind tunnel or over analyzing when they can just go out, launch it, and gather real flight data. :)
Update: A CTI rep. inferred on Rocketry Planet that motor used was one of theirs. Also, for those 'low altitude' flights, MDRA could contract out their field and tower. Any fees would of course be non-commercial donations to the club. I doubt that a flight like this required any resources from the big facility on the other side of the mountains.
Tuesday, August 04, 2009
A technique that I need to try again
In his latest how-to video, Tim Van Milligan shows you how to laminate your balsa fins with ordinary printer paper. While this doesn't sound like rocket science, I've generally have had poor success with this technique. I've tried white glue, wood glue, and spray-on glue with printer paper, card stock and vellum. Most of my problems come from using too much glue. That and generally being clumsy and untalented. When I get near glue, it gets everywhere.
But now I have renewed hope.
But now I have renewed hope.
Spaceport America/UP Aero/Moog Industries launch
MSNBC reports on the latest from Upham, NM. UP Aerospace launched a 'low altitude' rocket with a Moog Industries payload, which evidently was basically a professional boost-glider.
The rocket rose 2,200 feet (670.5 meters) above the desert, arced against the morning sunshine, cut power and glided in for a belly landing. It bounced on the earth, scattering some debris, but all the pieces were easily recovered.
Labels:
Spaceport America,
UP Aerospace
Monday, August 03, 2009
Building demolition FAIL
I've posted several videos of building implosions. Here's one that didn't work out as planned. (Warning: advertisement included)
Labels:
Booms
Lack of status
My quest for clear square tubing continues without success. It appears I'll pay for gasoline but not shipping costs. Looks like I need to scrape up some new project as my one active one is stalled. I hope the MLAS doesn't join the growing list of stuff I've started on but have never finished :eek:
The August NARHAMS launch has been canceled due to lack of interest (i.e. volunteers). It was to be right after NARAM-51, which is pretty close by.
And where are those Quest E and F motors? (rhetorical question)
The August NARHAMS launch has been canceled due to lack of interest (i.e. volunteers). It was to be right after NARAM-51, which is pretty close by.
And where are those Quest E and F motors? (rhetorical question)
Labels:
My Projects
Sunday, August 02, 2009
EMRR's 2009 Box-O-Parts Contest's submission deadline is past
And the entries are being (have been?) posted. Why is it I always regret having not entered right after the contest is over?
Labels:
EMRR
Saturday, August 01, 2009
From Dusk Till Dawn the album

I've already mentioned that From Dusk Till Dawn is one of my favorite movies but I don't recall mentioning that the sound track CD is also one of my all-time favorites. It is hands down my favorite movie soundtrack. It features my two favorite groups, ZZ Top and Stevie Ray Vaughan & Double Trouble, and covers rock, southern rock, blues, country, and some genres I can't classify. This has a brilliant selection of tracks. Here's the lineup:
1. Everybody Be Cool - (dialogue)
2. Dark Night - The Blasters
3. Mexican Blackbird - ZZ Top
4. Texas Funeral - Jon Wayne
5. Foolish Heart - The Mavericks
6. Would You Do Me a Favor? - (dialogue)
7. Dengue Woman Blues - Jimmie Vaughan
8. Torquay - The Leftovers
9. She's Just Killing Me - ZZ Top
10. Chet's Speech - (dialogue)
11. Angry Cockroaches (Cucarachas Enojadas) - Tito & Tarantula
12. Mary Had a Little Lamb - Stevie Ray Vaughan & Double Trouble
13. After Dark - Tito & Tarantula
14. Willie the Wimp (And His Cadillac Coffin) - Stevie Ray Vaughan & Double Trouble
15. Kill the Band - (dialogue)
16. Mexican Standoff
17. Sex Machine Attacks
18. (Untitled) - (hidden track) - (dialogue)
It's NSFW or for children but Chet's (aka Cheech Marin's) speech on a piece of female anatomy cracks me up every time. Only Cheech could get away with that!
PS - I can't resist slipping in a photo of Satanic Pandimonia:
Labels:
Music,
Rocket Girls (Mostly),
Visual Media: Movies
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