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General Dynamics–Grumman EF-111A Raven

The Grumman OV-1 Mohawk is an armed military observation and attack aircraft that was designed for battlefield surveillance and light strike capabilities. It has a twin turboprop configuration, and carries two crew members in side-by-side seating. The Mohawk was intended to operate from short, unimproved runways in support of United States Army maneuver forces.

Grumman: S-2 Tracker

Role ASW aircraft
National origin United States
Manufacturer Grumman
First flight 4 December 1952
Introduction February 1954
Status Active service in Argentine Naval Aviation
Primary users United States Navy 
Royal Canadian Navy 
Royal Australian Navy 
Argentine Navy
Number built 1,284
Variants Conair Firecat
Developed into Grumman C-1 Trader
Grumman E-1 Tracer

Grumman

Grumman
General Dynamics–Grumman EF-111A Raven

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Grumman
GD EF-111A Raven

The General Dynamics–Grumman EF-111A Raven is an electronic-warfare aircraft designed to replace the EB-66 Destroyer in the United States Air Force. Its crews and maintainers often called it the “Spark-Vark”, a play on the F-111’s “Aardvark” nickname.

The USAF contracted with Grumman in 1974 to convert some existing General Dynamics F-111As into electronic warfare/electronic countermeasures (ECM) aircraft. The USAF had considered the Navy / Marine Corps Grumman EA-6B Prowler, but desired a penetrating aircraft with supersonic speed. The EF-111 entered service in 1983 and served until its retirement in 1998.

Design

In the late 1960s, the U.S. Air Force sought to replace its aging EB-66 and EB-57 electronic warfare aircraft. The Air Force studied the use of Navy EA-6B Prowlers during 1967–1968.[2] However, the Air Force desired a penetrating electronic jamming aircraft with supersonic speed, and, in 1972, decided to modify F-111As into electronic warfare aircraft as a cost-effective option.

In January 1974, the Air Force awarded electronic warfare study contracts to Grumman and General Dynamics. Grumman was selected as the EF-111 prime contractor in December 1974, then was awarded a contract to modify two F-111As into EF-111 prototypes in January 1975. The first fully equipped model, known then as the “Electric Fox”, flew on 10 March 1977. A total of 42 airframes were converted at a total cost of US$1.5 billion. The first EF-111s were deployed in November 1981 to the 388th Tactical Electronic Squadron, Mountain Home AFB, Idaho. The last was delivered in 1985

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Grumman EF 111A Raven (1977)

The last deployment of the Raven was a detachment of EF-111s stationed at Al Kharj/Prince Sultan Air Base in Saudi Arabia until April 1998.[7] Shortly afterward, the USAF began withdrawing the final EF-111As from service, and placed them in storage at the Aerospace Maintenance and Regeneration Center (AMARC) at Davis-Monthan AFB, Arizona. The last EF-111s were retired on 2 May 1998, at Cannon AFB, New Mexico. These were the final USAF F-111s in service

Specifications

Crew: Two: pilot and electronic warfare officer

Length: 76 ft 0 in (23.17 m)

Wingspan: 63 ft 0 in (19.2 m) spread, 32.0 ft (9.74 m) swept

Height: 20 ft 0 in (6.1 m)

Empty weight: 55,275 lb (25,072 kg)

Gross weight: 70,000 lb (31,751 kg) [27]

Max takeoff weight: 89,000 lb (40,370 kg)

Powerplant: 2 × Pratt & Whitney TF30-P-3 initially, later upgraded to TF30-P-9 turbofans with afterburner

Maximum speed: 1,460 mph (2,350 km/h, 1,270 kn) ; above 30,000 ft

Maximum speed: Mach 2.2

Range: 2,000 mi (3,220 km, 1,740 nmi)

Ferry range: 3,800 mi (6,110 km, 3,300 nmi)

Service ceiling: 45,000 ft (13,715 m)

Rate of climb: 11,000 ft/min (55.883 m/s)

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The last deployment of the Raven was a detachment of EF-111s stationed at Al Kharj/Prince Sultan Air Base in Saudi Arabia until April 1998.[7] Shortly afterward, the USAF began withdrawing the final EF-111As from service, and placed them in storage at the Aerospace Maintenance and Regeneration Center (AMARC) at Davis-Monthan AFB, Arizona. The last EF-111s were retired on 2 May 1998, at Cannon AFB, New Mexico. These were the final USAF F-111s in service

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