Sunday, August 14, 2011

Big a$$ project of the day

Overheard at MDRA in the aftermath of a rain shower:  20' tall, 20" diameter, 150lb, N2000.  Custom tube, 1/16" thick.  Lots of discussion on non-standard building techniques internally.  The guy had pages of mechanical engineering calculations to show it will be strong enough (compressive forces and the like).  Me asks, why is he building a tube and having to mess with the internals?  Answer, he wants to keep it light.  But, that's backwards of what most people do - find a tube and build the nose cone.  Answer: he got the cone from a movie set or some such (2nd hand info) and needed to build the tube to match.  Sounds intriguing.