Has anyone managed to do this on a rotary or other auto setup using
  heat exchangers
     and liquid cooling. I have heard the old piston engine convairs used to
  use this as a
     way of 1) air cooling the engine very efficiently in a reduced cowling
  size, and 2)
     using the heat generated through combustion in the exhaust to generate
  some
     additional thrust,

     Anyone seen this done successfully

     Alex


     They are called ejectors or augmenters.
     Yes its been done. I discuss this in my "Book How to Cool Your Wankel".


     Paul Lamar

     Early Cessna 310 twin aircraft had similar, they had no cowl flaps,
     harder the engine worked the more air ejected via exhaust augmenters as
     Paul said, down side was they had no mufflers, by choice or if they did
     not work as well with mufflers I don't know.
     John Burey



  You might want to try Marc de Piolenc, he's writing a book on the subject.
  piolenc@archivale.com  he has a huge technical information service also
  specializing
  in stuff like this.

  George W

 thanks, i will follow up, rgds Alex molteno

 I had a 1956 Cessna 310 and i was flying in very cold weather in winter and warm in
summer and never had problem without cowl flapsJean		 	   		

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