Model Variants (Including Prototypes)
FAW.Mk 1 - Initial Production Model Designation; 427 produced.
FAW.Mk 2 - Uprated 8,300lb thrust powerplants; improved Westinghouse radar system.
T.3 - Dual-Control Trainer Variant; sans radar; 2 x 30mm cannons.
FAW.Mk 4 - Improved handling characteristics; all-moving tailplane feature.
FAW.Mk 5 - increased internal fuel capacity; modified wing assemblies.
FAW.Mk 6 - Based on Mk 5 but fitted with an American-produced radar system.
FAW.Mk 7 - 142 produced; fitted with Sapphire 203 11,000 thrust powerplants; provision for 4 x Firestreak air-to-air missiles in place of 2 x 30mm cannons.
FAW.Mk 8 - Afterburning powerplants for 13,390lbs of total thrust.
FAW.Mk 9 - Final Production Model Variant; based on existing FAW.Mk 7 and FAW.Mk 8 models but brought up to new standard; fitted with inflight refueling probe for increased range.