text: NAVWEPS 00-801-80 
  
  OPi?RATlNG STRENGTH LIMITATIONS 
  
  accepted data presented in the aircraft hand- 
  book. All of 
  the various static ‘strength, 
  service life, and aeroelastic effects must be 
  given proper respect. An airplane can be over- 
  stressed with the possibility that no immediate 
  damage is apparent. A powerplant may be  operated past the specified time, speed, or 
  temperature limits without 
  immediate appar- 
  In each case. the cumulative 
  ent damage. 
  tell at some later time when in- 
  effect will 
  service failures occur and maintenance costs 
  increase. 