RAF/RN fast jet combat assets and associated training units /shadow squadrons as at 1 January 1991, not taking into account composite units in the Middle East (information from World Air Power Journal volumes 2, 3, 6):
Belize City Airport (Strike Command)
Harrier GR.3 (No.1417 Flight)
RAF Brawdy (Support Command)
Hawk T.1A (No.1 TWU/Nos.79, 234 Squadrons)
RAF Brüggen (RAF Germany)
Tornado GR.1 (Nos.9, 14, 17, 31 Squadrons)
RAF Chivenor (Support Command)
Hawk T.1A (No.2 TWU/Nos.63, 151 Squadrons)
RAF Coltishall (Strike Command No.1 Group)
Jaguar GR.1A (Nos.6, 41, 54 Squadrons)
RAF Coningsby (Strike Command No.11 Group)
Tornado F.3 (Nos.5, 29 Squadrons, No.229 OCU/No.65 Squadron
RAF Cottesmore (Strike Command No.1 Group)
Tornado GR.1 (TTTE)
RAF Gütersloh (RAF Germany)
Harrier GR.5 (No.3 Squadron)
Harrier GR.7 (No.4 Squadron)
RAF Honington (Strike Command No.1 Group)
Tornado GR.1 (TWCU/No.45 Squadron)
Tornado GR.1A (No.13 Squadron)
RAF Laarbruch
Tornado GR.1 (Nos.15, 16, 20 Squadrons)
Tornado GR.1A (No.2 Squadron)
RAF Leeming (Strike Command No.11 Group)
Tornado F.3 (Nos.11, 23, 25 Squadrons)
RAF Leuchars (Strike Command No.11 Group)
Tornado F.3 (Nos.43, 111 Squadrons)
Phantom FGR.2 (No.228 OCU/No.64 Squadron)
RAF Lossiemouth (Strike Command No.18 Group)
Buccaneer S.2B (Nos.12, 208 Squadrons, No.237 OCU)
Jaguar GR.1A (No.226 OCU) -No.1 Group
RAF Marham (Strike Command No.1 Group)
Tornado GR.1 (Nos.27, 617 Squadron)
Tornado GR.1A (No.13 Squadron)
Canberra
PR.9 (No.1 PRU) -No.18 Group
Mount Pleasant Airport (Strike Command)
Phantom FGR.2 (No.1435 Flight)
RAF Wattisham (Strike Command No.11 Group)
Phantom FGR.2 (No.56 Squadrons)
F-4J(UK) Phantom II (No.74 Squadron)
RAF Wildenrath (RAF Germany)
Phantom FGR.2 (Nos.19, 92 Squadrons)
RAF Wittering (Strike Command No.1 Group)
Harrier GR.5 (No.1 Squadron, No.233 OCU)
RNAS Yeovilton (Flag Officer Naval Air Command)
Sea Harrier FRS.1 (800, 801, 899 Naval Air Squadrons)
Makes you want to weep, really.