Rolls-Royce Falcon
The Rolls-Royce Falcon was a liquid-cooled, twelve-cylinder engine - aircraft engine of the British manufacturer Rolls-Royce . It was a V-engine with a 60 ° bank angle . The propeller was driven by an air screw gear ( planetary gear ) with a reduction of 1: 1.698 . With a displacement of 14.2 liters, it was a smaller version of the Rolls-Royce Eagle (20.3 liters). The Falcon engine proved to be extremely reliable and was installed in a variety of types of aircraft and also in some airships .
The name of the engine comes as former Rolls-Royce tradition of the bird world, the family of Falk-like (English: Falcon ).
history
The engine was designed by Robert William Harvey-Bailey in 1915 and put into production in 1916 with 230 HP. There were two Watfort magnets for the ignition, each supplying 6 cylinders. The cylinders were grouped into groups of three, but each had its own cooling jacket. The gas exchange of the engine was by a vertical shaft driven overhead camshaft accomplished and two overhead valves per cylinder. The mixture preparation was done in two Claudel-Hobson - twin carburettors of 34 mm nominal diameter. The engine was manufactured with both left and right rotation directions, with the former given the even serial numbers and the latter given the odd serial numbers. The number of right-handed motors was significantly higher. The production of this first version with the official name Rolls-Royce 190 HP, Mk.I was partly carried out by Brazil Straker . 250 copies had been delivered by 1917.
In 1917 the series was switched to an improved version as the Rolls-Royce 190 HP, Mk.II with 253 HP, which differed in carburettors with a diameter of 38 mm. 250 of these were also manufactured, but exclusively at Rolls-Royce and all with right-hand rotation.
The last production version, Rolls-Royce 190 HP, Mk.III , also came out in 1917, with an output of 285 HP. In addition to an increase in compression, four individual Claudel-Hobson carburetors were now used, which required a change in the intake paths. Of this version, 1685 copies were made until 1927.
Applications
- Avro 529
- Blackburn GP
- Bristol F.2
- Fairey F.2
- Fairey N.9
- Martinsyde F.3
- Martinsyde RG
- Royal Aircraft Factory RE7
- Vickers FB14
- Blackburn Kangaroo
- Royal Aircraft Factory FE2d
- Blackburn TR1
- Bristol Tourer (Type 86)
- de Havilland DH37
- Martinsyde Buzzard
- Parnall Perch
- Vickers Viking (Type 16)
- Vickers Vendace
- Westland limousine
- Westland Wizard
Technical specifications
Mk.I Mk.II Mk.III Bohrung mm 101,6 101,6 101,6 Hub mm 146 146 146 Hubraum l 14,2 14,2 14,2 Leistung HP 230 253 285 bei min-1 1800 2000 2250 Verdichtung 5,1:1 5,1:1 5,3:1 Länge mm 1727 1727 1656 Breite mm 1024 1024 975 Höhe mm 945 945 1067 Gewicht kg 295 302 299
swell
- Flight , May 7, 1954.
- Flight , July 27, 1939.
- Jane's All the World's Aircraft , 1919.
- Alec SC Lumsden: British Piston Aero Engines and their Aircraft. Airlife, Shrewsbury 1994, ISBN 1-85310-294-6 .
