Activity

Here is a .pdf of my design. I’ve crumpled a 3″ tube using my car to pull against it and it didn’t slip 🙂 Also – you can bulge fiberglass tube if you don’t size the caps right and compress…   Read more»

Hey guys,I too remember when Adrian posted this, I later asked a plumber that i work with from time to time, he said he has shot many of these off the end of pipes with 10 PSI. I think those…   Read more»

On my 38mm rockets, the plastic does not bottom out, and I can tighten it up to at least the point where there is a visible bulge in the tube from the outside. That stopper is not coming out, and…   Read more»

Hey guys,I too remember when Adrian posted this, I later asked a plumber that i work with from time to time, he said he has shot many of these off the end of pipes with 10 PSI. I think those…   Read more»

…and I got the idea from Ed Wranowski, who made an av-bay with compressed o-rings on each end to hold it in place. When I saw these at Home Depot, I recognized them as using the same principle, and they…   Read more»

…and I got the idea from Ed Wranowski, who made an av-bay with compressed o-rings on each end to hold it in place. When I saw these at Home Depot, I recognized them as using the same principle, and they…   Read more»

Since I need an 98mm N load for my 5″ bird, I might just have to go take a stroll around the North Site and see if I can find this for you James… 😯

Oh, I don’t think there’s any question whose will be more efficient :DMine really couldn’t be considered efficient in any sense of the word…There is an “N” in efficient! :)Good Luck with the weather tomarrow.My “M” shot is out for…   Read more»

Oh, I don’t think there’s any question whose will be more efficient :DMine really couldn’t be considered efficient in any sense of the word…

(actually, I should be able to give you some nice stiff competition for the highest flight of Mayhem :D). I over heard what motor your burning today. I think mine is gona get a lot better gas milage! I just…   Read more»

If you lose a fin during a stable boost – even at Mach 2, I’ll rebuild it for you and maybe even buy you another motor. Those fins are ON there and ain’t coming off. (Unless you sanded through the…   Read more»

The plate I had was about .100 It varied about from . 097 to .105I ordered on line, a couple of 3/32 router bits for the slots. Took me a couple of days to find them. I bought 2 in…   Read more»

Your fins should be fine. They’re made pretty much exactly the same as mine are (autoclaved 1/8″ carbon core with 2 layers of CF over them, and then mine have a layer of glass just for the finish), and I’m…   Read more»

If you lose a fin during a stable boost – even at Mach 2, I’ll rebuild it for you and maybe even buy you another motor. Those fins are ON there and ain’t coming off. (Unless you sanded through the…   Read more»

Out of curiosity, why the M1545 green? The M2020 Imax is more powerful, smaller, and lighter.Oh, and the sim looks fine to me. I’m a bit surprised it isn’t higher, but as long as the site altitude and temps look…   Read more»

Or the new M840 long-burn white motor that fits the Pro75-6G hardware…that would be impressive!

Out of curiosity, why the M1545 green? The M2020 Imax is more powerful, smaller, and lighter.Oh, and the sim looks fine to me. I’m a bit surprised it isn’t higher, but as long as the site altitude and temps look…   Read more»

Out of curiosity, why the M1545 green? The M2020 Imax is more powerful, smaller, and lighter.Oh, and the sim looks fine to me. I’m a bit surprised it isn’t higher, but as long as the site altitude and temps look…   Read more»

Make sure your launch site is set for 5400, and the temperature is realistic. Double-check the mass and you should be good to go.

Well……According to RASAeroMach 1.75 and just over 30,000 With a boat tail it would push 34 or 35, but I dont have one.Some one can tell me if this all looks right, or if I am missing something.First time I…   Read more»