Thanks Hugh.
Moving around the Test Flight exhibition, there are a number 'one off' aircraft on display, each with its own unique story, charting the relatively rapid development of high speed, high altitude flight in the second half of the 20th century.
PICS 1 and 2. Saunders-Roe SR53. This fascinating aircraft was developed following a 1952 requirement for an interceptor which could rapidly reach high altitudes, and then loiter. It utilised a rocket motor to take off and climb rapidly, but also had an Armstong- Siddeley 'Viper' jet engine.
It's first flight wasn't until May 1957, when the SR53 attained Mach 2. However, being too small to carry the intended armament of air to air missiles, a larger version, the SR 177 was designed, but the project was cancelled before further development got underway. This was the last fixed wing aircraft built by Saunders Roe, who went on to develop rotary wing types and, of course, hovercraft. I vaugley remember building the Airfix kit of this in the late 1950s!
PICS 3 to 7. The impressive Bristol Type 188, a stainless steel aircraft, developed for heat investigation trials, it just failed to attain Mach 2, reaching Mach 1.88 in March 1962. There are features which are not unlike a later, well-known American aircraft, and the Type 188 had some similar problems - endurance was limited to 25 minutes, and it suffered from severe fuel leaks, due to heat expansion. These ultimately led to the cancellation of the project.
PICS 8 and 9. The lovely little Folland Gnat F1 (the waste bin in the picture gives scale to its diminutive size). Developed as a private venture, the Gnat was designed as a lightweight fighter. Although it had good performance and handling, and received favourable reports from the A&AEE, defence spending cuts prevented it entering RAF service. It was however, exported to Finland and India, with the latter country eventually producing their own version under licence. The basic design was used for the Gnat T1 trainer, which saw lengthy service with the RAF, and was the type with which the World-famous 'Red Arrows' aerobatic team was originally equipped.
PICS 10 and 11. The Fairey Delta FD2. A supersonic research aircraft from 1954, it broke the World Speed Record on 10 March 1958, when, flown by Peter Twiss, it attained 1,132 mph. The nose section and cockpit was hinged to 'droop' ten degrees for take off and landing, a feature which, of course, was later employed on Concorde.
The next post will feature some more Test Flight exhibits, before moving on to the stunning displays in the new National Cold War Exhibition.