text: For example, an airplane with a limit 
  load 
  factor of 4.0 would have a maneuver speed 
  which is twice the stall speed. 
  
  first 
  illustration of figure 2.30 is typical of an air- 
  is invariant with 
  plane with a CL, which 
  speed. While this is applicable for the ma- 
  jority of subsonic airplanes, considerable differ- 
  ence would be typical of the transonic or 
  supersonic airplane at altitude. Compressi- 
  bility 
  longitudinal 
  control power may produce a maximum avail- 
  able CL which varies with velocity and an 
  aerodynamic turn 
  is not an 
  absolute minimum at the maximum of velocity. 
  
  The aerodynamic limit  line of  the 
  
  The second illustration of figure 2.30 describes 
  performance 
  the constant altitude 
  of an airplane. When an airplane is at high 
  ,altitude, the turning performance at the high 
  speed end of the flight speed range is more 
  usually thrust limited rather than structurally 
  limited. 
  the 
  thrust must equal the drag to maintain equilib- 
  rium and, thus, 
  turn 
  radius is infinite at the maximum level flight 
  speed. Any bank or turn at maximum level 
  incur additional drag and 
  flight speed would 