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Kitty Hawk-class aircraft carrier
The ''Kitty Hawk''-class supercarriers of the United States Navy were an incremental improvement on the ''Forrestal''-class vessels. Three were built, all in the 1960s, (1961–2009), (1961–2003), (1965–1996), as well as the variant (1967–2007). All are now decommissioned.
==Improved ''Forrestal'' carriers==
The biggest differences from the ''Forrestal''s are greater length, and a different placement of elevators; two are forward of the island, one is aft of the island and another on the portside stern. The movement of the #4 elevator from the forward to the after end of the angle made it useful for aircraft movement, since the forward-end elevator in the ''Forrestal''s was sited in both the landing path and in the launch path of the waist catapults.
Three different shipyards were used to construct the ships. ''Kitty Hawk'' was built at New York Shipbuilding Corporation, ''Constellation'' at New York Naval Shipyard, ''America'' and ''John F. Kennedy'' at Newport News Shipbuilding. ''John F. Kennedy'' is similar to the earlier units in flightdeck arrangement and propulsion, but has enough differences that she is placed in her own class. Propulsion consisted of four Westinghouse geared turbines, 280,000 shp, four shafts with eight Foster Wheeler boilers.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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