Aviation unison?

[J. Stanley Ryberg]

Yes, indeed, Alan!  A friend of mine was a B-24 pilot in WWII...he used to shake his head over a couple of pilots in his group who just couldn't hear (or see, since you can visually check through the props from the pilot's seat) that the engines were so far out of synch that they just beat up everyone on board for the entire run.  Talk about your four-string unison tuning...!
   
          From:  "Alan Barnard" <tune4u at earthlink.net>    To:  pianotech at ptg.org    Date:  Thu, 2 Aug 2007 17:25:05 -0500    Subject:  RE: Aviation Unison?
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That's how aircraft engines were synchronized before they had computers   to do it. A B29 pilot, for example would start one engine, then start   the second and sync it to no beats by adjusting throttles, mixture,   prop pitch, whatever, then the third, then the fourth. Otherwise the   engines are "unequally yoked", as it were, and aren't as efficient and put   torque stresses on the wings, I would think.    Alan Barnard  Salem, MO  


Stan Ryberg 
Barrington IL 
jstan40 at sbcglobal.net
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