Chris LaPanse

I tend to go the other way - main out the nose, drogue from the middle. This is because the nose cone, being one of the lightest components of the rocket, is less likely to come off in the shock of dr...

That's very strange descent data - I have data from my Deuce (which weighs ~25-27lbs descent mass) that shows a descent rate of 18 fps from the North site (RRQS50).

With regards to the strange pressure effects on boost, where was/were your vent(s)? That could have a huge effect on the pressure readings...

Very interesting 🙂 I notice that you got better data at low speed than I did with my Cirrus - likely due to the lighter rocket and lower altitude. Very nice cd though - 0.3 is quite impressive. I hope...

Well, as far as Cd goes, my Cirrus (which was optimized for super/transsonic speeds) had a supersonic cd of 0.63 or so, and a transsonic cd of 0.70. Subsonic however was in the .4 range. For an optimi...

That sucks... Honestly, I would bet that the rocketry supply there will shrink fast anyways, forcing somewhat of a boycott by default. So much for a local hobby store with someone who actually knows a...

You shouldn't have a hard time with that. Your thinking was correct on the longer motors though - use plenty of dog barf, and just don't overdo it on the charge (which is good advice regardless with a...

Use a J825R 😆 Honestly though, as Ken said, the motor tube length is largely irrelevant to the length of the motor you can use. Go right ahead and pick whatever motor you want to use. It should work ...

Not this saturday - I won't have any of my HPR stuff with me. I'll take the case though 🙂

I'll be there saturday, with a corona and some other small estes/flis stuff. Nothing AP powered though.

If you put the spacer above the delay, that was certainly the problem. In all Aerotech motors, the spacer goes between the propellant and the delay, and the top of the delay should be flush against th...

Well, there are more pics here

I wasn't able to view the launch in person, so when I saw those pics, my jaw dropped. Man, that is beautiful. Wish I could've seen Doug's movies of that. Awesome! Doug's movies of that launch were tru...

And they come in 13 second delays. (from the rocketry forum, posted by Gary)The new G80T uses a dual "BATES" center core-burning grain configuration. This eliminates the need for extra case insulation...

I don't have them on my computer - my dad has them at home. He will be giving me a disk this evening, and then I can upload some of the plain, untouched pics like the ones up from saturday. He said th...