Bristol Type 179 Belvedere HC Mk. 1 XG452
The 5th prototype, which first flew in February 1960 at Weston-super-Mare, photographed inside The Helicopter Museum, Weston-super-Mare, on 20 April 2013.
I must have seen almost all the first flights of the 26 Belvederes that were built and test flown across the road from RAF Locking, during my 3 years there as an Aircraft Apprentice. Certainly they flew over Locking almost every day.
powered by two Napier Gazelle 100 turboshaft engine.
XG452 undertook a series of record breaking flights to Libya via Rome, Malta, and Idris in June 1960, taking only 13 hours 57 minutes. The helicopter seen here was declared "surplus to operational requirements" by the RAF in 1967. XG452 represents the only British tandem rotor helicopter to enter series production, and is currently under going major restoration.
See also picture #18323
which shows XG474 at Hendon.
Note that Westland had nothing to do with these helicopters!
Picture added on 03 October 2013 at 07:52