Aircraft Type Index

Military Helicopter Index

                   

 

Bristol Sycamore HR.12 Military Helicopter

The Bristol Type 171 Sycamore was designed by Raoul Hafnerhas and has the distinction of being the first British designed helicopter to fly (July 1947), as well as becoming the first British helicopter to enter service with the RAF in 1953. Being powered by a piston engine the endurance and performance of the Bristol Sycamore was not good by today's standards but it still fulfilled the tasks asked of it at the time, in RAF service this was predominantly that of search and rescue (SAR) and anti-submarine warfare (ASW) duties for which the helicopter proved adequate for the eighteen years the RAF operated the Bristol Sycamore helicopter.

Bristol Sycamore HR.12 Military Helicopter

 

Bristol Sycamore Mk.4 / HR14 Specifications:

  • Crew: Two
  • Capacity: accommodation for three passengers
  • Payload: 1,000 lb (454 kg)
  • Length: 61 ft 1 in (18.62 m)
  • Rotor diameter: 48 ft 7 in (14.8 m)
  • Height: 13 ft 10.6 in (4.23 m)
  • Empty weight: 3,810 lb (1,728 kg)
  • Loaded weight: 5,600 lb (2,540 kg)
  • Engine: Single 550 hp (410 kW) Alvis Leonides piston engine
  • Maximum speed: 132 mph (212 km/h)
  • Range: 330 mi (531 km)
  • Endurance: 3 hours
 

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