new2hpr

😆Strangely enough, I read through that on the first pass. Then again, I have two 7yr. old girls who write phonetically sometimes. I saved some of my son's early writings back when we had to study it...

Like others, I thicken it enough to do them all at once. I use tape on the edges, and a short chunk of pvc pipe (1/2 or 3/4") dipped in alcohol to run along them to spread and smooth. Just keep wipi...

I've got a bunch of F62T's lying around for the 29/60 case (and 2 29/60 cases I'd like to sell). Unfortunately I won't be able to make this launch. Let me know if you're interested, and you can run d...

Cerberus is a GREAT name and certainly with the "dog" theme. Ken, you are probably right about it being a niche. Another issue is that I've never built a cluster (or staged) HPR rocket and I'd have ...

Just a rocket name... Cerberus, with three of something, cluster? Like maybe a 38mm version of the LOC Viper? I'd stuff that with 3 Pro38's in a heartbeat! Might be too "niche market", though. -Ken

Wow, 2-time grand prize winner! You have an OBLIGATION to enter again. What movie theme this time?

No experience with anything that big, but I'd recommend ground testing starting with about half your calculated charge and work up. BP is cheap, but the rocket either not coming apart, or coming apar...

Even with the high ignition reliability of CTI, I'd highly recommend moving the outboards adjacent to the central motor to eliminate any effects of off-axis thrust. Looks cool. Kind of like you peele...

My cert has lapsed, but I'll help out as needed (or possible). Ken

Gotta be commercial. After L2, you can do EX, but not for certs. -Ken

Don't forget, there's also TRA (Tripoli Rocketry Assn.) as another national organization. TRA vs. NAR is a choice you can make, based upon where you'd like to go in rocketry. NAR is excellent for com...

I just like having a higher visibility plume for airstarts or upper stages. Just gives a visual confirmation. Call me a knob, but I like the sights and sounds as much as achieving performance goals....

I sense a resurgence in smokies for hi-visibility dynamic ignitions. 8) -Ken

Excellent question! Would airstarts or upper stages be allowed? -Ken

I'm considering swapping out the motor tube on my PR Comp3 for phenolic, justs to give another layer of insulation for such reasons. Anyone's thoughts? I think we'll probably be fine. Maybe do the r...