Dan Ruggirello wrote:

I was just thinking about the lateral vibration of the redrive excited by the differential loading
on the prop.  This load has to get reacted by the prop shaft as a moment.  The natural frequencies
of the drive/housing may well be within the range of the the operating frequency.  Does the Sky
Ranch book give any reasonable values for differential prop loads during climb or descent?  I
suppose one could assume the full thrust on each blade and it would be something like 500 lbs * 19
in ~ about 800 ft-lbs at 2* RPM.

Dan

Not that I am aware of.

Paul Lamar
 
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