F-102 Delta Dagger

F-102 Delta Dagger
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F102.jpeg
F-102 Delta Dagger
Description
RoleInterceptor
Crew1
Dimensions
Length68.33 ft20.83 m
Wingspan38.08 ft11.61 m
Height21.17 ft6.45 m
Wing area661.5 ft²61.46 m²
Weights
Empty19,050 lb8,639 kg
Loaded31,559 lb14,314 kg
Powerplant
EnginesOne Pratt & Whitney J57 with afterburner
Thrust16,000 lbf71 kN
Performance
Maximum speed810mph1,304 km/h
Combat range1,000 mi1609 km
Ferry range1,360 mi2,175
Service ceiling55,000 ft16,764 m
Rate of climb12,992 ft/min3,960 m/min
Armament
Rockets/Missiles24 unguided 2.75 in (70 mm) rockets, six AIM-4 Falcon air-to-air missiles

The Convair F-102 Delta Dagger fighter aircraft was part of the backbone of the United States air defenses in the late 1950s. Entering service in 1956, its main purpose was to intercept invading Soviet bomber fleets. The aircraft's development was long and troubled, and by the early 1960s it was being replaced by F-101 Voodoos and F-4 Phantom IIs. Many of the F-102s were transferred to United States Air National Guard duty by the mid- to late-1960s, and the plane left service altogether in 1976.

The plane was developed from the XF-92A delta wing research aircraft of the late 1940s. The Air Force took a new approach in putting out the request for proposals for an operational interceptor, considering both the aircraft and armament together in what became known as a "weapon system." The RFP for Project MX-1554 went out 18 June 1950, and in January 1951 six manufacturers responded, of which Convair, Lockheed, and Republic were chosen to proceed with design. Three of these projects were too expensive, and in November, only Convair was allowed to continue with its Model 8-80, an interim project using the less-powerful Westinghouse J40 turbojet in lieu of the Wright J67, which was still in development.

The YF-102A made its first flight on 24 October 1953, but was lost in an accident nine days later. The second aircraft flew on 11 January 1954, confirming a dismal performance, far below the requirements. The problem was solved by the use of the area-ruled fuselage, and the modified aircraft, Model 8-90, first flew on 19 December 1954, achieving a speed of Mach 1.22 and an altitude of 53,000 ft (16,200 m).

The production F-102A had the Hughes MG-3 fire control system, later upgraded in service to the MG-10. It had a three-segment internal weapons bay under the fuselage for air-to-air missiles. Initial armament was three pairs of GAR-1 Falcon missiles, a mix of infrared and semi-active radar homing. The doors of the two forward bays each had tubes for 12 2.75 in (70 mm) FFAR rockets (for a total of 24). The F-102 was later upgraded to allow the carriage of two GAR-9 Nuclear Falcon missiles in the center bay. The larger size of these weapons required redesigned center bay doors with no rocket tubes. Plans were considered to fit the MB-1 Genie nuclear rocket, but this weapon was never adopted.

The first operational service of the F-102A was with the 327th Fighter-Interceptor Squadron at George Air Force Base, in April 1956, and eventually a total of 889 were built.

111 TF-102A two-seat side-by-side trainers were also produced.

In 1973 six aircraft were converted to target drones, simulating MiG-21s.

The operational Delta Dagger still fell short of its goals, but the planned F-102B improvements eventually became a new aircraft, the F-106 Delta Dart.

The F-102's official popular name, "Delta Dagger," was never used in common parlance, the aircraft being universally known as the "Deuce." The TF-102 was known as the "Tub" because of its wide fuselage.


Variants

  • YF-102A - prototypes
  • F-102A - 889 built
  • TF-102A - two-seat trainer, 111 built
  • QF-102A - two piloted target drones (converted from F-102A)
  • PQM-102A - 200+ unpiloted target drones (converted from F-102A)
Related content
Related development Convair F-106 Delta Dart
Similar aircraft Dassault Mirage IIIC - Sukhoi Su-9 'Fishpot'
Designation series

F-99 - F-100 - F-101 - F-102 - XF-103 - F-104 - F-105

Related lists List of military aircraft of the United States - List of fighter aircraft


Lists of Aircraft | Aircraft manufacturers | Aircraft engines | Aircraft engine manufacturers

Airports | Airlines | Air forces | Aircraft weapons | Missiles | Timeline of aviation

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