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Old 05-11-2007, 09:26 AM
  #14  
balsaeater
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Default RE: Electric Weston Magnum video

Saw that vidio somewhere else eletric flight forum i think

From memory jhvent time to verify it with motor calc or similarTo get 220 mph at 100% prop efiency with a 9 inch pitch prop I think you need some 35K

alowing for normal 70% rule that reguires closer to 45 k RPM

I figure realy with a 40 mph folowing tailwind and down wind dive doing real speed in the air of 180mph and thats the 220 mph explained


Balsaeater