A Royal Air Force Harrier GR.3 aircraft parked on the flight line during Air Fete '84 at RAF Mildenhall.
Initial production version for RAF, powered by 19,000 lbf (84.7 kN) Rolls-Royce Pegasus 6 (Pegasus Mk 101 in RAF service). A total of 61 built.
Upgraded version of the GR.1, the main difference being the uprated (20,500 lbf (91.4 kN)) Pegasus 10 (or Pegasus Mk 102) engine. 17 GR.1As new-built and a further 41 GR.1s upgraded to GR.1A configuration, for a total of 58 GR.1As.
Featured improved sensors (such as a laser tracker in the lengthened nose and radar warning receiver on the fin and tail boom) and a further uprated (21,500 lbf (95.9 kN)) Pegasus 11 (Pegasus Mk 103). A total of 40 new built, with last delivered in December 1986, and about 62 converted from GR.1/GR.1As.
Single-seat ground-attack, close air support, reconnaissance, and fighter aircraft, powered by Pegasus 11 (designated F102-RR-402 by US) with simplified nav/attack system. 102 ordered for the USMC. Company designation Harrier Mk 50.
Export version of the AV-8A Harrier for the Spanish Navy, later sold to the Royal Thai Navy. Spanish Navy designation VA-1 Matador. Company designation Harrier Mk 53 for the first production batch, and Mk 55 for the second batch.
Two-seat training version for the Royal Air Force, equivalent to the GR.3, with Pegasus Mk 103 engine, laser seeker and Radar Warning Receiver. Reverted to short fin of single seater.
T.4 without laser seeker or Radar Warning Receiver.
Two-seat training version of the T.4A for the Royal Navy, with avionics (excluding radar) based on Sea Harrier FRS.1.
Naval trainer modified from early trainer variants and fitted with Sea Harrier F(A).2 avionics.
Two-seat company demonstrator of an export variant of the T.2, originally Pegasus 102 powered but uprated to Pegasus 103 following an accident in 1971, one built first flown 15 September 1971. RegisteredG-VTOL
Export version of the T4N two-seat training version for the Indian Navy.
Two-seater training version for the USMC, powered by a Pegasus Mk 103. Company designation Harrier Mk 54. Eight built.
Export version of the TAV-8A Harrier for the Spanish Navy. Later sold to the Royal Thai Navy. Spanish Navy designation VAE-1 Matador. Company designation Harrier Mk 54.
Two prototypes converted in 1978 from existing AV-8A airframes (BuNo 158394, 158395).
AV-8B Harrier II
"Day Attack" variant. Most were upgraded to one of the following two variants, while the remainder were withdrawn from service. 4 full scale development (FSD) aircraft were built in 1982, followed by 162 production aircraft, built 1983–1989.
AV-8B Harrier II Night Attack
Incorporates a Navigation Forward Looking Infrared camera (NAVFLIR). Upgraded cockpit, compatible with night vision goggles. More powerful Rolls-Royce Pegasus 11 engine. Originally designated AV-8D.
AV-8B Harrier II+
Similar to the Night Attack variant, with the addition of an APG-65 radar. It is used by the USMC, Spanish Navy, and Italian Navy. 72 were converted from existing AV-8B, 43 were new built from 1993 to 1997.
The GR7A is a GR7 with an uprated Rolls-Royce Pegasus 107 engine. The Mk 107 engine provides around 3,000 lbf (13 kN) extra thrust than the Mk 105's 21,750 lbf (98 kN) thrust, increasing aircraft performance during "hot and high" and carrier-borne operations.
The Harrier GR9 is an avionics and weapons upgrade of the standard GR7.
The Harrier GR9A is an avionics and weapons upgrade of the uprated engined GR7As. All GR9s are capable of accepting the Mk 107 Pegasus engine to become GR9As.
The Harrier T10 is the original two seat training variant of the second-generation RAF Harrier. The RAF used the USMC trainer, the TAV-8B, as the basis for the design.
The RAF needed trainers to reflect the upgrade of the GR7 to GR9. Nine T10 aircraft were to receive the JUMP updates under the designation T12, but retain the less powerful Pegasus 105 engine.