Wednesday, July 19, 2017

Mercury Redstone in the buff

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Here it is with everything but paint and recovery components.  It is actually flat black at the moment. I'll snap a photo tomorrow.
Aside: Often, whenever I bitch about not being able to get something completed, it gets done. Conversely, when I think I have plenty of time, other things try to suck up all my time.
I didn't intend to give this a great finish, however, I find a few spots that don't meet my admittedly low standards. I also have to inspect the edges of the fins to make sure the Rustoleum paint didn't eat up the foam.  It doesn't look like it but when the paint is dry and it is bright out I may find out differently.  It now looks like I'm short of time so I don't plan to do much. Except for adding the recovery harness. Tri-fold mount, baby :)

Tuesday, July 18, 2017

I HATE photoless posts...but...

...here's another one. I am building up good fillets using the gooey trim and molding glue so I haven't had much opportunity to set it on end when I had my phone with me. Hopefully, tomorrow.

Fins are almost done, the lug is on, and recovery components have been identified. I dry fit some parts and stability looks good so far. I want it stable with the burned out casing as well as new motors.

So, tomorrow I hope to take a photo or two, lay on some flat black, and get some more photos. I may have one round of sanding and touch filling. Then the recovery stuff can go in and it can be prepped for the weekend!

Sunday, July 16, 2017

Build fever (WARNING: photoless post)

Summer plans have shifted and it looks like I may miss all the launches in August. So, I suddenly feel compelled to finish up the Mercury Redstoned before next weekend. All the mounts are in and the final filler is drying. As I was weighing signboard vs. balsa for the fins, I spotted some sheets of foamboard. So, that's what I'm going with. It seems fitting to have cheapo fins on a model with what may be a single-use paper nosecone. I have tweaked the capsule a bit and have some plans to make a beefier version. I could build it now but unless I get more time and motivation, that won't happen this week. Worst case is the fins and the cone are single use and I'll have my next project lined up.

Saturday, July 15, 2017

Launch Report 2017-5 (NARHAMS)

Location: Mt. Airy
Weather: sunny, high 80's, wind variable and gusty 5-15mph
Total flights: Today - 11; YTD - 31
Total motors: Today - 11; YTD - 32
Motors by class YTD:  A-3; B-4; C-11; D-4; E-4; F-2; G-3; I-1


The wind was higher than I would have liked but, between the empty ball fields and the Chute Release, I didn't lose any. The wind also kept you cooled off a bit.

My Flights:
  1. New Way Mini Higgs Farm Square Rocket on a C11-3 - Nice flight.
  2. T255 on an A10-3 - Very high flight and, even with the tiny chute, it snagged a branch at the edge of the tree line. The NARHAMS recovery pole made short work of the dead branch.
  3. Hostile Projectiles Delta X-15 on a D12-5 - Nice flight with lots of weathercocking. I need to repair one of the wing tip winglets. (That doesn't sound right but is accurate enough so I'm not rewording it!)
  4. Estes Leviathan on a G74-6 - CR@200 - Nice flight.
  5. Art Applewhite 13mm Stealth on an A10-PT - Nice flight.
  6. Art Applewhite Stealth D5 on a C6-0 - Nice flight
  7. F-in-Rocket on an F15-6 - CR@200 - LOTS of weathercocking. The Chute Release worked too well and I had a long walk in the unexpected direction.
  8. SpaceShipSqurt(-1) on a D12-5 - The tangled chute saved this one from the trees. One fin needs repair.
  9. Sirius SS Cestris on a D12-5 - Nice flight.
  10. 2nd Half on a C6-3 - It still backslides ;)
  11. Independence Rocket on a C11-3 - Nice flight.
My photos:

NARHAMS 07/15/2017



Friday, July 14, 2017

Damn the torpedoes, full speed ahead!

Well, four 18mm canted motors won out over one 29mm. I had hoped for an actual mathematically generated template to cut out the motor holes but in the end just started chopping. Heres a pic of the first two motor tubes drying. Some additional filling will have to be done but the results should be satisfactory. Satisfactory enough for a cardstock-topped, goonie oddroc!

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I have two fin material choices based on what I have on-hand. Either some high quality 1/4" balsa or some corrugated plastic. I'm leaning towards the latter because it just seems to fit with the general construction of the rocket. Prepping a mailing tube rocket with huge corrugated plastic fins that are held on with - gasp - hot glue just reinforced this feeling. Plus I just don't feel like papering fins. I'll see.

Monday, July 10, 2017

Another Mercury Redstoned idea

This is still just an idea. This one features forward ejection, a 29mm mount, and humongous fins. Found some spare corrugated plastic that would work.

mercury goonie rear 29mm

Sunday, July 09, 2017

Mercury Redstoned goonie

I have continued to kick around what I want to do with the paper Mercury capsule. I'm stuck on using the tube I presented earlier...when the tube fits, use it.  The issue come in that the paper capsule is very light and wouldn't hold up if weight were added. This could be fixed, but I have decided to use it as is.  With the given tube length, this means big fins (or other stabilizing device(s) - ie streamers, skeletons, etc) and forward mounted motors.

Here is my first concept. The capsule is bonded to the top of the tube. Actually, the bottom - the slip-on cap will sit on the bottom and it will be rear eject.  The four 18mm mounts will be canted. Fins - balsa or foamboard? Should I make a harness so it comes down  parallel to the ground? Or use a big honkin' 'chute deployed by the Chute Release? Either way, I have to protect the fragile capsule. Or not and just plan to print another.

Mercury Restoned

PS - Only the followers of canted motor oddrocs on TRF will get the skeleton reference.

PPS - I'm still not sold on another cluster. I have so many I want to fly and my stock of favored starters is dwindling.