An enthusiasts site dedicated to the de Havilliand / Hawker Siddley / British Aerospace / Hawker 125's and the Hawker 4000's
Series 1
First production version, 8 built
Series 1A/1B
Series 1 aircraft with Bristol Siddeley Viper 521 engines. 1A are built to American standards, 1B to UK standards
Series 2
RAF trainer known as the Dominie T. Mk1
Series 3
upgraded engines
Series 400
upgraded engines. RAF’s liaison aircraft became the CC. Mk1
Series 600
3 ft 1in fuselage stretch to increase capacity to 14. RAF version CC. Mk 2
Series 700

257037 BAe125-700B Brussels 13 May 2007
Honeywell TFE731-3RH turbofan engines. F/f 19 June 1976 . RAF version CC Mk. 3
Series 800
Increased wingspan, new nose, tail fin extension, upgraded engines
Series 800XP
TFE731-5BR1H turbofan engines
Series 800XPi
Series 800XP with interior updates.
Series 800SP
800A/B with retro fitted winglets
Series 800XP2
800XP with retro fitted winglets
Series 850XP
800XP with factory installed winglets and interior updates
Series 900XP
850XP with TFE731-50R engines (increased hot/high performance and longer range)
Series 750
800XP with a light-weight interior and heated baggage compartment in place of the ventral fuel tank
Series 1000
2ft 9in fuselage stretch, seating 15 people. Pratt & Whitney Canada PW-305 turbofans, F/f 16 June 1990, 52 built.