K&B 7.5 front rotor ducted fan engine
07-01-2003, 02:23 PM
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K&B 7.5 front rotor ducted fan engine
Just Bought one-planning on putting a prop on it 9x8, 9x9, 10x6, 10x7. Can anyone tell me about this motor-I'm not familar with them?
Thanks--WW
Thanks--WW
07-01-2003, 02:42 PM
#2
K&B 7.5 front rotor ducted fan engine
I seriously doubt you're going to get that engine to turn the props you have listed. This is a high RPM, low torque engine. The rotors usually attached to these engine are about 4.5" diameter. You will probably need to get down to an 8" prop to get the revs up to a point, 20K+, where the engine will be happy.
John
John
