Warren B. Musselman

The only cannon I've ever had was a PVC potato gun I built, but that used either White Rain hair spray or propane. My cousins had a carbide cannon that made quite a noise as I recall, but I was always...

Also, remember that ffff powder has only one use - priming charge in the pan on flintlock weapons. Most BP weapons use 3f, 2f or 1f as the actual charge to fire the bullet. Warren

Just remember, it is technically illegal to purchase black powder for rocketry use. The only legal use is black powder firearms. Warren

I want to re-iterate my request for folks to give me some input on fin fillets and fin fillet sizing with respect to interference drag. I received a reply on the arocket list from the inestimable Henr...

Most definitely. Sugar and Sorbitol motors, Ammonium Nitrate motors, and homemade Nitrous Oxide hybrids are all definitely within Tripoli rules. Large black powder motors, LOX Hybrids and liquid-fuele...

Doug, your footage is by far the very best amateur rocketry footage on the planet, bar none. I just showed it the other night to a friend of mine who has been out to a few launches and he just sat the...

Make a cardboard fin template for the alignment. Can't use CA though. W

Very nice Adrian

Release film from Advanced Composites or Fiberglast.com. I just wrapped it tightly around the case and then started wrapping the wetted-out fabric around it. After I did 3 wraps, I wrapped peel-ply, b...

I used a J570 case wrapped with 8 or 10 wraps of .001 mylar release film to make 38mm carbon tube. Just enough slop for the motor to slide in and out easily. Warren

I will be teaching a class for NCR club members on laying up composites, vacuum bagging, making composite airframes, fins, plate and related topics. (I don't do nosecones - you're on your own there). ...

Adrian, Are you using peel ply and breather when you place the fins between the floor tiles or ???? Warren

A bunch of choices: 1 - drill out pass through holes for the retainer screws and epoxy T-nuts on the back side. Hell, I know people who have just threaded the holes in the G10 ring. 2 - Replace with a...

Ya' gotta love reciprocity.... TRA, NAR and CAR all have reciprocity so whatever your certification level or organization, all of the other recognize it equally to their own certifications. Change mem...

hold off for me until you have a standard production unit. Warren