Windy conditions would give very inaccurate scale readings anyway.  These are airplanes after all.

I have a set of Ruggles scales and was pretty dissatisfied with the repeatability I was getting.  I was jacking the plane to put them on the scales.  The comments here about side loads (comment #1, oiled slip plates; comment #2, roll on -- don't jack) seem on point.  I'll give it a try soon and let everyone know whether repeatability improves with these techniques.  I expect that it should.

Rick Price

 
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