RCU Forums - 91 prop

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air farce one

05-11-2005 07:36 PM

91 prop

Dave,
What Prop size for a 91 on an 8 lb Bucker Jungmeister w/ 65" wingspan. Had a Master airscrew 16x6 tached at 7100 rpm. Thanks, Bryce

Dave Shadel

05-11-2005 08:48 PM

RE: 91 prop

15x8 or 16x4 would be better choices.

Dave Shadel

05-11-2005 08:50 PM

RE: 91 prop

The engine sounds a little wimpy, but the MA may load the engine more than an APC. Shoot for a peak rpm of 8500 to 9000 for best results.

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