Des Moines, Iowa
Joined Apr 2003
Help with a power system for a Super Falcon 120
I am going to convert a Super Falcon 120 to an electric pusher config. I have seen some threads on EDF but nothing really showed up in a search for a basic electric conversion.
I have narrowed it down to two likely power systems but I want to get some feedback on which would be the better path. I am not sure if I should go for more RPMs and a smaller prop or a little bigger diameter prop and lower RPMs. I think conventional wisdom is larger props are better from an efficiency viwpoint.
I expect to be in the 17-18lbs range RTF
The two power systems I am looking at are 10S based.
Scorpion 4035-380 swinging a 12.5x10
Watts in 2400 and change
Pitch speed 120mph
Static thrust 300 oz
Scorpion 4035-460 swinging a 11x9
Watts in 2380
Pitch Speed 133mph
Static thrust 285oz
I know these are "calculated" not measured performance numbers but with that in mind which way would you go? Most discussions seem to be based around 3d style power systems. I am looking for something geared to a decent speed in a sport style plane. I am going to use the Falcon as a "jet" trainer with retracts and flaps.
USA, FL, Winter Haven
Joined May 2006
Judging by the numbers I doubt that you would be able to tell a difference between the 2 setups. They are very similar, so do you want 15oz more thrust or 13mph pitch speed ?
Guess that's the question hehe
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