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Old 02-27-2007, 10:01 AM
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Default RE: SR71 blackbird

The total weight of the plane together with an O.S. 46 is about 5.5 lbs. As for taking off. It goes quite a ways down the runway before it starts to rotate and take off. I tried using a 10x8 and a 10x6 prop with the OS 46 motor. It flew slightly better with the 10x6 but still slugish. As for a larger prop. Well the way the jet is built it only allow props no larger that a 10 inches. So the idea of a larger prop isn't going to work. Thanks for the helpful tips.