|One way to make a rocket go higher is to reduce the air resistance. So if you make a skinnier rocket, you have a better chance to reduce its air resistance and make it go higher. I have started making water rockets out of tubes of polycarbonate. They are sold for the purpose of encasing florescent lights from showering glass down when a bulb breaks. But, they make great rockets. In order to use them, you first have to cap both ends. I found a way on Jon Mehlferber's web page that you can thermo-form (technical word for melting) bulkheads out of 20 oz bottles. I used PVC to make the jig because the local hardware store didn't have the parts in copper. I have to be carefull with the PVC jig because the heat gun can melt it too.|
|Here is a picture of a FTC rocket on the launcher. The clear plastic
fins are hard to see.
Assembled jig to make the bulkheads.
Finished product glued onto a FTC. Ready for fins.
Bernard Willaert is where I found electromagnetic deployment for the chute
I used Bruce Berggren's launcher design
Tim Sumrall has some good links
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