Talk Composites - The Forum for Advanced Composites

Rocket Airframe

http://www.talkcomposites.com/Topic2338.aspx

By ROCKET COL - 7/21/2012 11:14:01 AM

Hi all, just putting this out to see what you all think.
Looking to coat a spiral wound cardboard tube 142mm OD with 2mm wall 2m tall.
it will just add more strength to the tube, it needs to be light yet strong.
It also needs to have a good finish, may or may not be painted.
What do I cover it with?
Sleeve, woven cloth, fibreglass, carbon, Kevlar????
Peelply or vac bagging?? the tube is hollow and needs to keep its shape as parts fit in and slide out to allow recovery.
There are also 3 large fins at the base, so do I do tube first, then cut slots and slide over fins then fillet the joints or do i do in 1 hit
and hope it looks ok.
Depending on motors it could be going up to 650mph in a few seconds to about 10,000 feet, also has to take landing on parachute.
I know a lot to take in just asking.
Thanks
Colin
By Matt (Staff) - 8/1/2012 11:01:38 AM

Hi Col,

The peel-ply will come off I just suspect that on a cylinder shape with a shrink-tape over the top it will be hard work; I wasn't sure whether it was neccessary, that was all.

RE the nosecone, covering polypropylene will always be difficult because nothing (including paint!) will stick to it!