English Electric had Napier & Son aero-engines, Bristol had 50% of Bristol Aerojet and Bristol Siddeley engines and smaller investments in Westland and Short Brothers & Harland.
English Electric havde Napier & Son flymotorer, Bristol ejede 50% af Bristol Aerojet og Bristol Siddeley flymotorer og mindre investeringer i Westland og Short Brothers & Harland.