NAVWEPS 00-801-80  OPERATING STRENGTH LIMITATIONS  Chapter  5  OPERATING STRENGTH  LIMITATIONS  order to obtain the required service life from  his aircraft, the Naval Aviator must undet-  stand, appreciate, and observe the operating  strength limitations.  Failure to do so will  incur excessive  maintenance costs and a high  incidence of failure during the service life of  an aircraft.  The weight of the structural components of  an aircraft is an extremely important factor in  the development of an efficient aircraft con-  figuration. In no other field of mechanical  design is there such necessary importance  assigned to structural weight.  The efficient  aircraft and powerplant structure is the zenith  of highly reined rknimum weight design.  in  325 