Trident From United Kingdom, joined Feb 2000, 484 posts, RR: 0
Reply 6, posted (11 years 8 months 1 week 2 days 16 hours ago) and read 2655 times:
The Viper was originally a Bristol Siddeley design. It was acquired by Rolls Royce when they took over the Bristol Aero Engine division in the early 60's (as also happened with the Pegasus (Harrier) and Olympus (Concorde and Vulcan). The Viper had been designed for use in unmanned drone/target aircraft such as the Jindivik. It was also used in the early versions of the De Havilland (later Hawker Siddeley) HS125 executive jet.