text: If the acceleration during takeoff were reduced 
  10 percent, the takeoff distance would increase 
  takeoff velocity were 
  11.1 percent; if 
  increased 10 percent, the 
  takeoff distance 
  increase 21 percent. These relation- 
  would 
  ships point to the fact that proper accounting 
  must be made of altitude, temperature, gross 
  weight, wind, etc. because any item affecting 
  acceleration or takeoff velocity will have a 
  definite effect on takeoff distance. 
  
  the 
  
  To obtain minimum takeoff distance at the 
  specified takeoff velocity, the forces which act 
  on the aircraft must provide the maximum 
  takeoff roll. The 
  the 
  acceleration during 
  various forces acting on the aircraft may or 
  may not be at the control of the pilot and 
  various techniques may be necessary in certain 
  airplanes to maintain takeoff acceleration at 
  the highest value. 
  
  If an airplane were to land at a velocity of 
  to a 
  150 knots and be decelerated uniformly 
  stop with 
  the same acceleration of 0.2g, the 
  landing stop distance would be 5,000 ft. 
  However, the case is not necessarily that an 
  aircraft may have identical takeoff and landing 
  performance but the principle illustrated is that 
  distance is a function of velocity and accelera- 
  tion. As before, a 10 percent lower accelera- 
  tion increases stop distance Il.1 percent, and a 
  10 percent higher 
  landing speed increases 
  landing distance 21 percent. 
  
  Figure 2.32 illustrates 