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Aviation History
1962
1962 - 1706.PDF
336 FLIGHT International, 30 August 1962 ro Engines I ALVIS LTD <|'Holyhead Road, Coventry. Coventry 0C0 3) 25501% ^ £1,200,000 2,800 (approximately 900 aero) % Holyhead Road: production of Ltonides and /// Leonides Major, spares and service support for •//* I these engines; engine research and development, % 7A Baginton, Coventry: ground and flight test. W. mffM////w//////m////w//M////////to///m/m////M, AMs Leonides 531 Leonides Versions of this nine-cylinder radial engine are in civil and military service in aH pans of the world. The majority are installed in aeroplanes, but many are specially equipped for heli copter operation in such machines as the Sycamore and Dragonfly. Alvis are at present working at full pressure on the Leonides 531 series, in which piston stroke is increased slightly to give a take off power of 650 h.p. The Leonides Major is a two-row engine with 14 short- stroke cylinders, and helicopter versions of the Major power the Whirlwind ' (Royal Navy anti-submarine) and Whirl wind 8 (Queen's Flight). Snscol Aeroplane Co Ltd 50% Hawker Siddeley Croup Ltd j 50% I £30,000,000 BRISTOL SIDDELEY ENGINES LTD Mercury House, London SW7. Kensington 7090 30,000 (both Aero and Power divisions) ^ 1 Ansty, Warwickshire: research, des.grt, development, manufacture and testing of rocket engines; service support and development of Gamma, Olympus, Sapphire, Stentor and Viper (also headquarters of Power—i.e., non-Aero—Division). Bentham, Gloucestershire: sheet~metat and component fabrication; component repair and overhaul. Hatfield, Hertfordshire: engine test beds and gas-dynamics laboratory. Leavesden, Hertfordshire: production and service support and development of Gipsy engines, Gnome, Coupled Gnome and Gyron Junior. Parkside, Coventry: production of Nimbus and Viper; service support and development of Double Mamba, Nimbus and Viper. Patchway, Bristol: deve/opment. production, test and overhaul of Olympus, Orpheus and Pegasus; service support and development of Centaurus, Hercules, Orpheus, Pegasus and Proteus (not marine or industrial Proteus); research, design, development, manufacture and test of ramjets and advanced aero gas turbines; flight test (at Filton). Quinton Road, Warwickshire: repair and overhaul of Cheetah. Rodney Works, Filton, Bristol: sheet-metal component fabrication. Stag Lane, London NWV: engine research, design and development; manufacture of prototype engines; production of components. Sunderland, Durham: manufacture of engine components, Whitchurch, Somerset: engine repair and overhaul. Astazou A highly rated single-shaft turbine, the Astazou has been developed by the French Societe Turbomeca both as a turboprop, for fixed-wing aircraft, and as a turboshaft unit for helicopters. It has an output, according to sub-type, of between 540 and 650 s.h.p., and thus fills a gap in the current range of British powerplants. Bristol Siddeley are sales and service agents in respect of this engine, and are in a position to negotiate a production licence should a sufficiently large market materialize. Aubisque Another very competitive Turbomeca engine, the Aubisque is a turbofan rated at 1,5401b thrust, which has been on bench-test two months and is due for production early next year. Again Bristol Siddeley are acting as the French company's agents. BS.S9 Although pioneers in the field of rotating-nozzle engines capable of im parting either lift or thrust, Bristol Sidde ley have also evolved the BS.59 pure lift engine. It differs from all previous lift units in that it is a turbofan, with a relatively low jet velocity to reduce fuel consumption, noise and ground erosion. It is intended chiefly for VTOL trans port aircraft. The Ministry of Aviation have made a contribution towards com ponent development, but the first com plete BS.59, which ran for the first time this month, is a company financed prototype. BS.94 Although development of the BS.75 turbofan has for the present been suspended, studies are continuing into future applications of the same basic design. One which appears promising is this version with four rotating nozzles to give lift or thrust. Military BS.94s would probably be rated at thrusts con siderably greater than the 7,5501b of the original commercial BS.75. BS.100 Most powerful aircraft engine currently known to be under develop ment, the BS.100 is an entirely new design of outstanding importance which has already been specified for such advanced military aircraft as the Hawker P.1154, BAC.584, Fokker/Republic D-24 Alliance, BAC.208 and Whitworih Gloster 681. Like the Pegasus, the BS.100 will be a large turbofan discharging through four swivelling nozzles to give either thrust or lift, 0: reverse thrust for braking. Normally the front pair of nozzles discharge cool air from the fan, and the rear pair the hot
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