The carrier-based, single seat aircraft, which also saw service with the Marine Corps, was designed to meet the 1947 Navy need for an interceptor that could shoot down enemy planes at 15,240 m (50,000 ft).
The job of making the F4D fell to veteran Douglass designer Ed Heinemann. Adhering to the Navyâ??s request that the fighter be built according to the patterns of German pioneer, delta wing, tailless aircraft researcher Alexander Lippish, Heinemann gave the F4 its wide, rounded triangular wings and no tail.
Initially, the Skyray was to be propelled by the Westinghouse J40 turbojet, but difficulties with the engine led to its replacement with the much more potent Pratt &Whitney J57.
The development and prototype construction was a single of the most guarded military secrets of the post war Guild Wars two Secrets period.
As soon as the similarity to a Manta ray fish were noticed the Skyray name was a offered. Pilots nicknamed it the â??Fordâ?.
Even even though it was nicely known that the F4D was an unstable craft, it was 1st deployed in 1956, immediately after five years of tests. The airplanesâ?? initial service was with the VC-3 Naval Squadron, the only Navy unit in NORAD.
The F4D, which was eventually, renamed F6A, saw service with 21 Navy and Marine squadrons.
Even so, its restricted function as a higher altitude interceptor and handle issues restricted the F4Dâ??s service life. It was retired from active duty in 1964. The National Advisory Committee for Aeronautics (NACA), the organization that would become NASA, kept 4 for experimental purposes. They were withdrawn in 1969.
For its time, the F4D was Guild Wars two Secrets a well armed plane. It featured 4 200 mm Colt Mk12 cannons and pods for unguided rockets of a variety of sizes. The Skyray could also be fitted with 4 Sidewinder missiles and two 907 Kg (2,000 lb) bombs.
By contemporary standards, the F4Ds avionics had been meager: APQ 50 low bombing radar and Aero 13F fire-control radar.
Grumman came up with a similar but longer model, the F5D Skylancer. It was an improvement over the Skyray, but the Navy did not obtain it for political reasons and simply because it paralleled the mission of other current fighters.
A total of 442 aircrafts were built These days, eight Skyrays survive. They are all residing in military museums. Not one F4D ever saw combat.
The Douglas F4D Skyray
Aircraft Image and Squadron Histories
Douglas F4D Skyray – CARRIER-BORNE Guild Wars 2 Secrets INTERCEPTOR