Adrian

Yep, and Tom Rouse is the competition committee chair again…

So far, the weather models are showing 5-6 mph.

I might chug along with an I216 shot of my own… though mine isn’t as glamorous (exposed rivet, conical cone, phenolic, thicker fins, etc.).Maybe we do Dr. J the honor of breaking the TRA record twice in one day? I’ll…   Read more»

I’m planning to come on Saturday, with my tower.Depending on the weather and how much I can get done, I may fly a carbon 38mm bird with the new CTI I216 motor, and a Raven altimeter in a new Featherweight…   Read more»

Yep. Can’t beat that.”Ah-ah child way you shake that thing,Gon’ make you burn, gon’ make you sting. “Sounds like a CG needs to be centered a bit better, though. 😉

I’d check it in RASAero and see how that compares to what you got with OpenRocket.

Yes, I’m pretty sure that was with the smoothest possible settings.

I have found that the import works well, but the estimated drag is really, really high compared to both RASAero and actual flights. IIRC, RASAero predicted my J flight going over 22k, which it did, but Open Rocket was predicting…   Read more»

The standard answer would be NO, but then it might depend on the altimeter. One of the electronic geeks could answer this better than I can but NO. The Q2G2 ignitors should be safe to be used for deployment charges…   Read more»

The all-fire current for the Q2G2s is about 0.2 Amps. They can be ordered directly from the Quest website. Q2G2s work pretty well for igniting composite motors too, if you dip them in pyrogen like Magnalite. I’m planning to use…   Read more»

Hey Scott,So your using the j-tek? What battery do you like to use?Just getting my feet wet, with dual deploy.J-tek?? Whats that? What ever joe is selling. I bought forty the last time.So they last a while. RRC2 mini…   Read more»

If you’re using altimeter apogee deployment, you don’t have to drill anything out; just leave the delay/smoke in place and just skip the step where you add the BP. If you want to eliminate the possible failure mode of a…   Read more»

Very cool.Here’s my favorite launch photo//www.airliners.net/photo/United-Launch-Alliance/Boeing-Delta-4-Heavy/1585299/L/

G10 is actually quite a good themal insulator. Good enough that real spacecraft use g10 to make standoffs to attach propulsion fuel lines to cold structures. In the fiber direction, carbon is more thermally conductive than aluminum. Spacecraft use carbon…   Read more»

I can vouch for a tile saw. The diamond blade works wet or dry on FG, CF, circuit boards, even plywood in a pinch. Mine is a cheap 4″ or 5″ tile saw I got for cutting tiles (of all…   Read more»

We can leave my tower set up for 38mm shots and Sean’s tower for the 54mm birds.

Adrian, that is co cool!

Thanks. The build thread is below if you’re interested in pictures and more info//www.rocketryplanet.com/forums/showthread.php?t=5369Good news, Joe!

This weekend I’m trying to finish up my Half-Fast rocket. It’s a testbed for airstarts and unusual recovery systems. It’s a BT80-based rocket with a central 24mm and 4 18mm motors. It also has a nosecone mounted, 24mm motor tube…   Read more»

Adrian,Thanks for pulling this together.1) is there a particular reason the F motor can’t use a motor adapter? It wouldn’t be efficient, but would there be any unfair advantage?Generally, the optimal mass will be higher for the higher-impulse motors. Since…   Read more»

I’ll take a crack at writing down the rules, and people can modify The goal of the contest is to safely and successfully fly one rocket with D, E, and F motors in 2010, to the highest combined altitude for…   Read more»