GP Giles .46-.61 G202
10-28-2004, 11:38 PM
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GP Giles .46-.61 G202
I have completed my kit, the Giles G202 Aerobatic .46-.61 kit by Great Planes. Last month, I have gotten myself a OS Engine FS .91 with Pump to match this kit. I am now looking for wooden propeller. From the manual of OS engine, it recommends "PITCH 6" for optimum performance.
I intend to have an engine that props quieter (so a small diameter prop may fit) and also a props that does not put too much axial stress on the engine, sufficient pull force but not excessive for the engine (it's a compromise). can anyone recommend me something through your experience ?
I intend to have an engine that props quieter (so a small diameter prop may fit) and also a props that does not put too much axial stress on the engine, sufficient pull force but not excessive for the engine (it's a compromise). can anyone recommend me something through your experience ?
10-29-2004, 06:54 AM
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RE: GP Giles .46-.61 G202
Um... I think that some of your assumtions are a little off. A larger prop is quieter because it will turn at a lower rpm.
I've never heard anyone mention axial stress on the engine as a consideration when selecting a prop. If your prop is balanced there wont be any axial stress on the engine. Maybe you mean thrust. If that's the case the airframe is the limiter not the engine. If your plane is built per GP's reccomendations it should be ok (assuming your engine is in the manufacturer's range). GP generally over designs their structures anyway.
O.S. normally provides a table of acceptable prop sizes in the manual. Just use what they suggest.
I've never heard anyone mention axial stress on the engine as a consideration when selecting a prop. If your prop is balanced there wont be any axial stress on the engine. Maybe you mean thrust. If that's the case the airframe is the limiter not the engine. If your plane is built per GP's reccomendations it should be ok (assuming your engine is in the manufacturer's range). GP generally over designs their structures anyway.
O.S. normally provides a table of acceptable prop sizes in the manual. Just use what they suggest.
