To all MMD takers:  This question appeared in a quiz in the April issue
of AOPA Pilot Magazine (Airplane Owners and Pilots Association):

  His father manufactured player pianos and nickelodeons, and in 1929
  he used the innards and principles of organ construction to invent
  a revolutionary device that today is commonly used - and continues
  to evolve.  Who was this pioneer pilot and aircraft owner?

I'll give the answer in the next issue of MMD.

Larry Toto

 [ Did he 'Solo', too?  ;)  -- Robbie