text: “feel” of the airplane but will produce an un- 
  desirable increase in takeoff distance. Assum- 
  the acceleration is essentially un- 
  that 
  ing 
  affected, the 
  takeoff distance varies as the 
  square of the takeoff velocity, 
  
  s*
  vz.2 
  - 
  -= 
  J-1 v, 
  0 