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Javelin Gloster
Javelin
Interceptor

DESCRIPTION:
The Gloster GA.5 project began in the late 1940s and was intended to incorporate recent advancements in radar, aerodynamics, and jet engines into a modern all-weather day-night interceptor. The design that ultimately emerged, known as the Javelin, featured a large-area delta wing with low wing-loading to provide good performance at high altitude. Unlike most other delta-winged aircraft of the period, the Javelin also incorporated a T-tail with conventional elevator control surfaces to reduce the high angle-of-attack such aircraft typically experience during landing. The cylindrical fuselage provided space for the two crew in a tandem seat cockpit, two turbojet engines, and a large interception radar in the nose.

Following evaluation of seven prototypes, the Royal Air Force ordered the advanced new fighter into production as the Javelin F(AW).1. First entering service in 1956, the initial production model was soon followed by a number of modified and updated variants over the next few years. The Javelin F(AW).5 was the first model equipped to carry air-to-air missiles while the F(AW).6 and F(AW).7 introduced more powerful engines.

Some 436 Javelin interceptors and trainers were eventually built before the aircraft was withdrawn from service in 1967.

Data below for Javelin F(AW).1
Last modified 26 September 2009

HISTORY:
First Flight (Javelin F(AW).1) 26 November 1951
(Javelin F(AW).2) 25 April 1956
(Javelin T.3) 20 August 1956
(Javelin F(AW).4) 19 September 1955
(Javelin F(AW).5) 26 July 1956
(Javelin F(AW).6) 14 December 1956
(Javelin F(AW).7) 9 November 1956
(Javelin F(AW).6) 9 May 1958
Service Entry 29 February 1956
Retirement 1967

CREW: two: pilot, radar officer

ESTIMATED COST:

unknown

AIRFOIL SECTIONS:
Wing Root RAE 101 (10%)
Wing Tip

RAE 101 (8.9%)

DIMENSIONS:
Length (Javelin F(AW).1) 56.25 ft (17.15 m)
(Javelin T.3) 59.92 ft (18.28 m)
(Javelin F(AW).9) 56.75 ft (17.31 m)
Wingspan 52.00 ft (15.85 m)
Height 16.00 ft (4.88 m)
Wing Area 927 ft (86.12 m)
Canard Area

not applicable

WEIGHTS:
Empty unknown
Normal Takeoff 31,580 lb (14,325 kg)
Max Takeoff (Javelin F(AW).1) 36,690 lb (16,640 kg)
(Javelin F(AW).2) 37,200 lb (16,875 kg)
(Javelin T.3) 42,000 lb (19,050 kg)
(Javelin F(AW).4) 37,480 lb (17,000 kg)
(Javelin F(AW).5) 39,370 lb (17,855 kg)
(Javelin F(AW).6) 40,600 lb (18,415 kg)
(Javelin F(AW).7) 40,270 lb (18,265 kg)
(Javelin F(AW).8) 42,510 lb (19,280 kg)
(Javelin F(AW).9) 43,165 lb (19,580 kg)
Fuel Capacity internal: unknown
external: unknown
Max Payload

unknown

PROPULSION:
Powerplant (Javelin F(AW).1) two Armstrong Siddeley Sapphire ASSa.6 turbojets
(Javelin F(AW).7) two Armstrong Siddeley Sapphire ASSa.7 turbojets
(Javelin F(AW).8) two Armstrong Siddeley Sapphire ASSa.7R turbojets
Thrust (ASSa.6) 16,000 lb (71.17 kN)
(ASSa.7) 22,000 lb (97.86 kN)
(ASSa.7R) 24,600 lb (109.43 kN) above 20,000 ft (6,095 m)

PERFORMANCE:
Max Level Speed at altitude:
(Javelin F(AW).1) Mach 0.94
(Javelin F(AW).4) Mach 0.96
(Javelin F(AW).5) Mach 0.93
(Javelin F(AW).7) Mach 0.95
(Javelin F(AW).8) Mach 0.93
at sea level: 710 mph (1,140 km/h)
Initial Climb Rate unknown
Service Ceiling (Javelin F(AW).1) 52,500 ft (16,015 m)
(Javelin F(AW).4) 50,700 ft (15,470 m)
(Javelin F(AW).5) 50,100 ft (15,285 m)
(Javelin F(AW).7) 52,800 ft (16,110 m)
(Javelin F(AW).8) 52,000 ft (15,865 m)
Range unknown
g-Limits unknown

ARMAMENT:
Gun two 30-mm ADEN cannons
Stations five external hardpoints
Air-to-Air Missile up to four Firestreak
Air-to-Surface Missile none
Bomb none
Other none

KNOWN VARIANTS:
Javelin F(AW).1 First production model equipped with the British AI.17 radar; 47 built including 7 prototypes
Javelin F(AW).2 Essentially identical to the F(AW).1 but equipped with the American APQ-43 radar; 30 built
Javelin T.3 Trainer version with an insert in the forward fuselage to compensate for the weight loss caused by the removal of the radar; 23 built
Javelin F(AW).4 New interceptor model incorporating a powered all-moving tailplane; 50 built
Javelin F(AW).5 First model equipped to carry air-to-air missiles on pylons mounted beneath a modified wing with increased fuel capacity; 64 built
Javelin F(AW).6 Similar to the F(AW).5 but equipped with the American APQ-43 radar; 33 built
Javelin F(AW).7 Major production model fitted with a new fire-control system and more powerful engines; 142 built
Javelin F(AW).8 Final production version equipped with more powerful engines with reheat for increased thrust at altitude, an autopilot, and the American APQ-43 radar; 47 built
Javelin F(AW).9 Former F(AW).7 airframes updated to the F(AW).8 standard, 22 also fitted with in-flight refueling gear; 116 converted

KNOWN COMBAT RECORD:

none

KNOWN OPERATORS:

United Kingdom (Royal Air Force)

3-VIEW SCHEMATIC:

Javelin


SOURCES:





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