Bristol Sycamore
Bristol Sycamore
In 171, Bristol G-AMWG "Sir Gawain" of BEA, London Gatwick Airport. I engage in the passenger transportation of the Birmingham International Airport route via Heathrow Airport.
- A use: Rescue, antisubmarine helicopter
- A designer: Raul Haffner
- A manufacturer: Bristol airplane
- An operation person: The Royal Air Force、The Australian navy、West Germany Army
- Maiden flight: 1947July 27
- The number of the production: 180 planes
- Start of production: 1947
- An operational start: 1953
Bristol Sycamore (Bristol Type 171 Sycamore) is designed first in the U.K. and is a helicopter placed on duty in the Royal Air Force. This plane was manufactured from Bristol airplane and was used for search rescue, an antisubmarine war. The name of this plane comes from say Yaw miller's thumb Ede of the nut of Sycamore that drops while turning.
Table of contents
A design and development
I became able to utilize an engineer of the Institute for air strategy experiment in Beaulieu (Beaulieu) (Airborne Forces Experimental Establishment, AFEE) after the Normandy landing operation of the alliance national military of 1944, and Bristol Cars Partnership established a helicopter section in the company. AFEE stimulated the development of the helicopter with Raul Haffner who was the pioneer of the helicopter technology, but a helicopter study in AFEE was given a priority by エアスピードホルサ in the Normandy landing operation and the success of the military glider of the General aircraft Hamil car.
The design of Sycamore began in June, 1944 and I passed more than two years particularly an important point was put in the durability of the machine part and was performed. Prototype VL958 equipped with WASP youth engine (Bristol Cars Partnership did not have a suitable engine on hand) made in Pratt and Whitney Corporation of 450 hp made the first flight on July 27, 1947. Prototype Sycamore Mk.2 equipped with Al vis Leoni death engine (this engine became the standard engine of the mass-produced airplanes of Sycamore) of 550 hp was completed in the summer of 1948.
It was the placement of 2 normal seat planes called the copilot, but, in Sycamore to Mk.3A, Mk.4 which was a main mass production type was changed for the American standard method that a pilot sat down on in the right seat with a pilot in the right seat in the left seat. There were some improvements from an initial model, and four pieces of doors became the standard in Mk.4. This model was placed on duty in the Royal Air Force as H.R.14.
The name called Sycamore was not used for a model for the private enterprise and was easily known for a name called 171, Bristol.
History of the use
Sycamore H.R.14 was placed on duty in the 275th squadron of the Royal Air Force in April, 1953 and was deployed in nine squadrons in total. This squadron Malaysia crisis (1948 – I was used for the patrol duty in the jungle of the army on foot in) in 1960.
Three planes were delivered to the Belgian government in the German federal government Sycamore of 50 in total.
In Sycamore, it is mentioned specially even that it was on the second helicopter used for the Australian military when seven planes were deployed in the Australian navy.
Derivation type
Type 171
- Mk 1
- A prototype, two production.
- Mk 2
- The trial manufacture second unit, one production.
- Mk 3
- The mass production type that the nose was shortened for the body and the view improvement of 5 widened seats. 15 production.
- Mk 3A
- A private model. It produces two planes for British European Airways (BEA, existing British Airways).
- Mk 4
- The military business was called Sycamore with a main mass production type equipped with more powerful engine.
Sycamore
- Sycamore HC10
- It is for the evaluation of the emergency conveyance machine for (=Mk.3) Royal Flying Corps. One production.
- Sycamore HC11
- It is for the evaluation of the communication machine for (=Mk.3) U.K. Army. Four production.
- Sycamore HR12
- It is for the evaluation of the search rescue plane for the (=Mk.3A) Royal Air Force. Four production.
- Sycamore HR13
- It is for the evaluation of the search rescue plane for Royal Air Force of with (=Mk.3A) winch. Two production.
- Sycamore HR14
- Search rescue duty use for the (=Mk.4) Royal Air Force. 85 production.
- Sycamore Mk 14
- It produces three planes for a Belgian air force. I use it in the Belgium territory Congo.
- Sycamore Mk 50
- Search rescue and aerial guard duty use for Australian navy. Three production.
- Sycamore HC51
- Search rescue and aerial guard duty use for Australian navy. Seven production.
- Sycamore Mk 52
- It produces 50 planes for West Germany Army and the navy.
Operational
Private operational
Militarily operational
Essential points
(Mk.4 / HR14)
- A crew: Two people
- A burden: Three people or 454 kg of kg (1,000 lb)
- Full length: 18.62m (61 ft 1¼in)
- Overall height: 4.23m (13 ft 10.6 in)
- A main rotor diameter: 14.8m (48 ft 7 in)
- Emptiness weight: 1,728 kg (3,810 lb)
- Gross weight: 2,540 kg (5,600 lb)
- An engine: 1 × Al vis Leoni death Reciprocating engine, 550 hp (410kW)
- The maximum speed: 212km/h (132mph)
- Duration: 3.5 hours
Allied item
Source
- Bowyer, Chaz. The Encyclopedia of British Military Aircraft. Bison Books Limited. ISBN 0-86124-258-0.
- Barnes, C. H. (1964). Bristol aircraft since 1910. Putnam. ISBN 0-85177-823-2.
- Bridgman, Leonard, ed. Jane's All The World's Aircraft 1951–1952. London: Samson Low, Marston & Company, Ltd 1951.
Outside link
- RAF Museum page on the Bristol Sycamore
- British Aircraft Directory page on the Bristol Sycamore
- helis.com pages on the Bristol Sycamore
This article is taken from the Japanese Wikipedia Bristol Sycamore
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