Bristol Type 192 Belvedere
in
Royal Air Force

First heavy lift and tandem rotor helicopter for the British armed services. Delivered initially to the Belvedere Trials Unit at RAF Odiham in 1960, and after about a year it entered operational service in Sep 1961 as the Belvedere HC.1. The fleet was grounded between Aug and Sep 1962 following an accident in Germany (which was ultimately caused by a design failure in the cockpit ergonomics).

It had a reputation for unreliable engine starters, which gave trouble throughout most if its operational life and the laminated rotor blades were prone to distintegration during flight. A rectification programme saw it give service in the UK, the Middle East (where dust abrasion of the rotor blades was also problematic) and Far East.

Originally designed for a service life of 1000 flying hours, work during 1964 showed it could be extended to 1700 hours.

It was never hugely successful and was eventually withdrawn in Mar 1969. It did however serve a heavy lift requirement and it was to be 1980 and two false starts later, before the RAF took delivery of the Chinook HC.1 to replace the Belvedere.