In the mid 1970s, the British company Hawker Siddeley developed a concept for a medium-weight fighter for the Royal Air Force strongly influenced by the US’ F-16. This series of ‘P.1200’ concepts came from the company’s Kingston division. Though considerably larger than the F-16, most of the P.1200 designs featured a similar air intake, canopy, leading edge root extensions and general wing configuration.
Strangely the P.1202 design was offered with either two RB.199s or a single RB.431. The RB.199 was then in development for the Tornado, but as experience would show with the ADV, it was not a suitable fighter engine; it was tailor-made for the low-level regime and was a poor performer at the medium and high altitudes that an air superiority fighter needs to operate in. The RB.431 study was essentially a Pegasus with reheat and no vectored thrust nozzles, though powerful it again seems an odd choice for a supersonic fighter.
The initial design, from November 1975, featured a canard layout with square shoulder-mounted intakes, similar to the later Saab Gripen. Further designs utilized a conventional tail and dorsal intakes. Internal armament for the early P.1200 designs was two 27-mm Mauser cannon. Air-to-air armament was expected to be AIM-9 Sidewinders and SkyFlash medium-range missiles. In the secondary air-to-ground role it could have carried four bombs in a low-drag recess.
By 1977 the aircraft had become even more strongly influenced by the F-16. Both single and twin vertical fin configurations were tested. The twin-tailed P.1202 pictured above, would have had superior high alpha performance to the F-16, and given a suitable engine, would have made a formidable dogfighter.
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