North American FJ-4 Fury
|The last flying FJ-4 in United States Navy colors|
|National origin||United States|
|Manufacturer||North American Aviation|
|First flight||28 October 1954|
|Status||Phased out of service|
|Primary users||United States Navy
United States Marine Corps
|Developed from||North American FJ-2/-3 Fury|
The North American FJ-4 Fury was a swept-wing carrier-capable fighter-bomber for the United States Navy and Marine Corps. The final development in a lineage that included the Air Force's F-86 Sabre, the FJ-4 shared its general layout and engine with the earlier FJ-3, but featured an entirely new wing design and was a vastly different design in its final embodiment.
Design and development 
Compared to that of the FJ-3, the FJ-4's new wing was much thinner, with a six percent thickness-to-chord ratio, and featured skin panels milled from solid alloy plates. It also had an increased area, and tapered more sharply towards the tips. Slight camber behind the leading edge improved low speed characteristics. The main landing gear design had to be considerably modified to fold wheel and strut within the contours of the new wing. The track of the main wheels was increased and because they were closer to the center of gravity, there was less weight on the nosewheel. Wing folding was limited to the outer wing panels.
The FJ-4 was intended as an all-weather interceptor, a role that required considerable range on internal fuel. The FJ-4 had 50% more fuel capacity than the FJ-3 and was lightened by omitting armor and reducing ammunition capacity. The new wing was "wet"; that is, it provided for integral fuel tankage. The fuselage was deepened to add more fuel, and had a distinctive "razorback" rear deck. A modified cockpit made the pilot more comfortable during the longer missions. The tail surfaces were also extensively modified and had a thinner profile. The overall changes resulted in an aircraft that had little in common with the earlier models, although a family resemblance was still present. The two prototypes had the same Wright J65-W-4 engine as the FJ-3, but production aircraft had the J65-W-16A of 7,700 lbf (34 kN) thrust.
The first FJ-4 flew on 28 October 1954 and delivery began in February 1955. Except for one squadron which trained Navy FJ-4B pilots, FJ-4s were used exclusively by the Marine Corps, which operated three squadrons.
Of the original order for 221, the last 71 were modified in the FJ-4B fighter-bomber version. This had a stronger wing with six instead of four underwing stations and stronger landing gear. Additional aerodynamic brakes under the aft fuselage made landing safer by allowing pilots to use higher thrust settings, and were also useful for dive attacks. External load was doubled. But the most important characteristic of the FJ-4B was that it was capable of carrying a nuclear weapon on the inboard port station. It was equipped with the LABS or Low-Altitude Bombing System for the delivery of nuclear weapons. The Navy was eager to maintain a nuclear role in its rivalry with the Air Force, and it equipped 10 squadrons with the FJ-4B. It was also flown by three Marine squadrons. In April 1956 the Navy ordered 151 more FJ-4Bs, bringing the production to a total of 152 FJ-4s and 222 FJ-4Bs.
The Navy ordered six FJ-4s to be converted to FJ-4F to test rocket engines, but only two were completed. These featured the North American Rocketdyne AR-1 engine, installed in a fairing above the tail pipe of the jet engine. It ran on hydrogen peroxide and JP-4 jet fuel, and provided an additional 5,000 lbf (22 kN) of thrust for short periods. The FJ-4F reached speeds of Mach 1.41 and altitude of 71,000 ft (21,600 m).
With the new designation system adopted in 1962, the FJ-4 became the F-1E and the FJ-4B the AF-1E. AF-1Es served with United States Naval Reserve units until the late 1960s. A total of 1,115 Furies were received by the Navy and Marine Corps over the course of its production life.
- Two prototypes with a J65-W-4 engine and re-designed fuselage.
- One FJ-4 used for development testing.
- FJ-4 Fury
- Single-seat fighter-bomber version, powered by a 7,700 lbf (34 kN) Wright J65-W-16A turbojet engine. 150 built.
- FJ-4B Fury
- Single-seat ground-attack close support version with six underwing pylons, 222 built.
- FJ-4F Fury
- Test and evaluation aircraft, fitted with an auxiliary rocket motor and supplementary fuel tank. Two conversions fom FJ-4.
- F-1E Fury
- Redesignation of the FJ-4.
- AF-1E Fury
- Redesignation of the FJ-4B.
- AF-1F (NA-295)
- Proposed light-attack version with TF30 engine, competitor to the A-7; not built.
Aircraft on display 
- 139486 - National Naval Aviation Museum, NAS Pensacola, Florida.
- 139516 - Historic Aviation Memorial Museum in Tyler, Texas.
Specifications (FJ-4) 
Data from American Military Aircraft
- Crew: 1
- Length: 36 ft 4 in (11.1 m)
- Wingspan: 39 ft 1 in (11.9 m)
- Height: 13 ft 11 in (4.2 m)
- Wing area: 338.66 ft² (31.46 m²)
- Empty weight: 13,210 lb (6,000 kg)
- Loaded weight: 20,130 lb (9,200 kg)
- Max. takeoff weight: 23,700 lb (10,750 kg)
- Powerplant: 1 × Wright J65-W-16A turbojet, 7,700 lbf (34 kN)
- Maximum speed: 680 mph (1,090 km/h) at 35,000 ft (10,670 m)
- Range: 2,020 mi (3,250 km) with 2× 200 gal (760 l) drop tanks and 2× AIM-9 missiles
- Service ceiling: 46,800 ft (14,300 m)
- Rate of climb: 7,660 ft/min (38.9 m/s)
- Wing loading: 69.9 lb/ft² (341.7 kg/m²)
- Thrust/weight: .325
- Guns: 4 × 20 mm (0.787 in) cannon
- Missiles: 4 × AIM-9 Sidewinder missiles
- Bombs: 3,000 lb (1,400 kg) of underwing ordnance, including missiles
See also 
- Related development
- North American FJ-1 Fury
- North American FJ-2/-3 Fury
- North American F-86 Sabre
- North American F-100 Super Sabre
- Aircraft of comparable role, configuration and era
- Dassault Mystère IV
- McDonnell F3H Demon
- Mikoyan-Gurevich MiG-17
- Republic F-84F Thunderstreak
- Supermarine Scimitar
- Related lists
- List of fighter aircraft
- List of military aircraft of the United States
- List of Sabre and Fury units in US military
- Bowers 1990, pp. 387
- Andrade 1979, p. 190.
- "FJ Fury/139486." National Naval Aviation Museum. Retrieved: 26 March 2013.
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- "FJ Fury/143557." Warbird Registry. Retrieved: 29 October 2012.
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