01-30-2020, 01:51 PM
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Dazed and Confused
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Join Date: Mar 2005
Location: TN
Posts: 11,626
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Quote:
Originally Posted by burkefj
a "little weight" is an understement. In a tail mounted model like this for example, if you were to do two G-12's
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Two G-12's would get you 186 Ns total impulse, putting it into HPR rules anyway, if that's an issue at your field.
I understand what you're saying. I was thinking about smaller motors, which still would add weight over the single larger motor, but I haven't actually looked at the potential motor selection before now. You don't have anything that, flown in pairs would come close to meeting similar weight and thrust profile as a single G-12.
Apogee/Aerotech has a couple motors that are long burn, but their casings are similar in size to the G12 (the F13 uses the same casing) and would be about as heavy as a pair G-12's. To make it feasible they'd have to be nearly half the weight, and as a pair provide a good enough thrust profile to work with.
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