11-15-2010, 11:39 AM
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Old Far...er...Rocketeer
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Join Date: Mar 2005
Location: Plano, TX resident since 1998.
Posts: 3,965
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Quote:
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Originally Posted by CPMcGraw
Another "Schoolyard Sounder". A simple two-stage design for 13mm engines.
Diameter: 0.908" (ST-8)
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Craig,
I like this for the same reasons. A ~1" diameter 2-stager on T motors is well suited for small field flying. I've come close to cooking up something like this before. Then I realized, I already had one - a Midget. Several, in fact 
BTW, using your Rocksim file, I get a dv of 11.5ft/sec using the A3-4T as a sustainer. Altitude is less school-yard-friendly at 642', but it seems like a reasonable motor option, space permitting.
Doug
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