text: The governing apparatus for the turboprop 
  powerplant must account for one additional 
  variable, the propeller blade angle. 
  the 
  propeller is governed separately from the tur- 
  bine, an interaction can exist between the 
  engine and propeller governers and various 
  “hunting,” 
  overspeed, and overtemperature 
  conditions are possible. For this reason, the 
  
  If 