Reheated (afterburning)

• Adour Mk 101 - First production variant for the Jaguar, 40 built.^[3]
• Adour Mk 102 - Second production variant with the addition of part-throttle reheat.^[3]
• Adour Mk 104 - Much more powerful version available in early 1980s, with higher operating temperature (700° vs 640), capable of about 5,500 lb. dry and 8,000 lb. with max A/B (static). While it was only marginally better in military thrust at take off, this engine improved the Jaguar’s low power-to weight ratio and enabled much better performance, with 10% more thrust at take off (with after burner engaged), and up to 27% more thrust in high subsonic cruise, helping the Jaguar in its typical flight envelope (low level, high speed attack).
• Adour Mk 106 - Replacement for the Jaguar's Mk104 engine (developed from the Adour 871) with a reheat section. The RAF refitted its fleet with this engine as part of the GR3 upgrade.^[4] In May 2007, following the retirement of the last 16 Jaguars from No. 6 Squadron RAF, based at RAF Coningsby, the Adour 106 has been phased out of RAF service.^[5]
• Adour Mk 801 - For Mitsubishi F-1 & T-2 (JASDF)
• TF40-IHI-801A - Licence-built version of Mk 801 by Ishikawajima-Harima for Mitsubishi F-1 & T-2 (JASDF)
• Adour Mk 804 - Licence-built by HAL for Indian Air Force phase 2 Jaguars
• Adour Mk 811 - Licence-built by HAL for Indian Air Force phase 3 to 6 Jaguars; rated at 8400 lbs of maximum thrust. BAe-built Jaguars were initially powered with two Adour 804E turbofans.
• Adour Mk 821 - Engine upgrade of Mk804 and Mk811 engines, was under development for the Indian Air Force Jaguar aircraft.^[6]

Dry (non-afterburning)

• Adour Mk 151-01 Used by the Royal Air Force training aircraft fleet
• Adour Mk 151-02 - Used by the Red Arrows
• Adour Mk 851
• Adour Mk 861
• Adour Mk 871 - Used by Hawk 200^[7]
• F405-RR-401 - Similar configuration to Mk 871, for US Navy T-45 Goshawk.
• Adour Mk 951 - Designed for the latest versions of the BAE Hawk and powering the BAE Taranis and Dassault nEUROn UCAV technology demonstrators.^[8] The Adour Mk 951 is a more fundamental redesign than the Adour Mk 106, with improved performance (rated at 6,500 lbf (29,000 N) thrust) and up to twice the service life of the 871.^[9] It features an all-new fan and combustor, revised HP and LP turbines, and introduces Full Authority Digital Engine Control (FADEC).^{[citation needed]} The Mk 951 was certified in 2005.
• F405-RR-402 - Upgrade of F405-RR-401, incorporating Mk 951 technology, certified 2008. Did not enter into service due to funding issues.

Higher bypass

• A high-bypass engine built around the core of the Adour and intended as a Spey replacement was developed by Rolls-Royce in 1967 as the Rolls-Royce RB.203 Trent.

Licence-built

Ishikawajima-Harima TF40-IHI-801A

• Mitsubishi F-1
• Mitsubishi T-2

General characteristics

• Type: Turbofan
• Length: 114 inches (2.90 m)
• Diameter: 22.3 inches (0.57 m)
• Dry weight: 1,784 lb (809 kg)

Components

• Compressor: 2-stage LP, 5-stage HP
• Turbine: 1-stage LP, 1-stage HP

Performance

• Maximum thrust: 6,000 lb (27.0 KN) dry / 8,430 lb (37.5 KN) with reheat
• Overall pressure ratio: 10.4
• Bypass ratio: 0.75-0.8
• Fuel consumption: dry 0.81 lb/(lbf⋅h) (23 g/(kN⋅s))
• Thrust-to-weight ratio: 4.725