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Old 11-22-2005, 10:42 AM
  #19  
joeflyer
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Default RE: variable exaust nozzle

A while back there was a servo controlled variable exhaust nozzle for ducted fans. Bob Fiorenze sold them. The idea was to open it up for maximum thrust on take off, then close it down for max. speed. I don't know how well they worked, but imagine they could be somewhat effective for a ducted fan. One doesn't seem practical or effective for a turbine model.

Joe