Search

The Online Encyclopedia and Dictionary

 
     
 

Encyclopedia

Dictionary

Quotes

 

F4D Skyray

Douglas F4D Skyray
F4D Skyray
Douglas F4D Skyray
Description
Role Carrier-based naval interceptor
Crew 1
First flight 1951
Entered service 1956
Manufacturer Douglas Aircraft Company
Dimensions
Length 45 ft 3 in 13.8 m
Wingspan 33 ft 6 in m
Height 13 ft 0 in 10.2 m
Wing area 557 ft² 52 m²
Weights
Empty 16,024 lb 7,300 kg
Loaded 22,648 lb 10,300 kg
Maximum takeoff 27,116 lb 12,300 kg
Powerplant
Engines Pratt & Whitney J57-P-8,-8A or -8B turbojet
Thrust 10,200 lbf dry
16,000 lbf afterburner
45 kN dry
71 kN afterburner
Performance
Maximum speed 722 mph 1,200 km/h
Combat range 700 miles 1,100 km
Ferry range 1,200 miles 1,900 km
Service ceiling 55,000 ft 17,000 m
Rate of climb 18,300 ft/min 5,600 m/min
Avionics
Radar APQ-50A radar
Fire control Aero 13F
Armament
Guns 4 &times 20 mm cannon (wing roots)
Bombs 2 &times 2000 lb (900 kg) bombs
Missiles 2 &times AIM-9 Sidewinder
Rockets 6 &times 7 2.75 in (70 mm) unguided rockets, or
4 × 19 2.75 (70 mm) rockets

The Douglas F4D Skyray was a carrier-based fighter built by the Douglas Aircraft Company. Although it was in service for a very short time and never fired a shot in anger, it was notable for being the first carrier-launched plane to hold the world's absolute speed record and was the first Navy fighter capable of exceeding Mach 1 in level flight. It was also distinguished in being used by the only Navy Squadron (VFAW-3) assigned to the North American Air Defense Command. VFAW-3 was permanently based at NAS North Island , San Diego. Its unique and notable looks also played a part in making the Skyray one of the best-remembered early jet fighters. Affectionately known as the "Ford", this aircraft had a spectacular rate and angle of climb and set new time to altitude records.

Later designated F-6 in the unified designation scheme, the Skyray's almost delta-winged planform was inspired by Alexander Lippisch's work in Germany during World War II. The Skyray was a tailless design with long, sharply swept, rounded wings. The thick wing roots contained the air intakes feeding a single turbojet. Fuel was contained both in the wings and the deep fuselage. Leading-edge slats were fitted for increased lift during takeoff and landing, while the trailing edges were mostly elevon control surfaces. Additional pitch trimmers were fitted inboard near the jet exhaust, and were locked upward on takeoff and landing.

Originally built for the Westinghouse J40 turbojet, the Douglas designers fortunately took a conservative view and gave space for other powerplants. The J40 proved troublesome and was eventually cancelled, and the Skyray was fitted instead with the Pratt & Whitney J57, a more powerful but larger engine.

Production aircraft were not delivered until early 1956, while the U.S. Marine Corps received their first in 1957. In total, 419 F4D-1 aircraft were produced.

The Skyray was designed exclusively for the high-altitude interception role and was unsuited to the multi-mission capabilities soon in demand, so it had a short life in Navy and Marine Corps service, the last planes being withdrawn from service in 1964. A single aircraft was used by NACA (soon to be NASA) until 1969.

A derived successor, the F5D Skylancer, was designed and prototypes were built, but it was cancelled as too similar in mission parameters to the Vought F8U Crusader and also to reduce dependence upon Douglas Aircraft, which was also producing several other aircraft for the U. S. Navy.

Possible confusion: The F4D (old designation) should not be confused with the F-4D (new designation) - the latter being the "D" variant of the McDonnell F4 Phantom II.

Related content
Related development F5D Skylancer
Similar aircraft
Designation series (Pre-1962)

XFD - F2D - F3D - F4D - F5D - F6D

Designation series (Post-1962)

F-3 - F-4 - F-5 - F-6 - F-7 - F-8 - F-9

Related lists List of military aircraft of the United States - List of fighter aircraft
Last updated: 10-29-2005 02:13:46