Rolls-Royce Tyne
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The Rolls-Royce Tyne was a 2 shaft turboprop developed in the late 1950's, primarily for the Vickers Vanguard airliner, but also later for the Dassault-Breguet Atlantique long-range reconnaissance aircraft, Canadair CL-44 and Transport Allianz Transall transport aircraft.
A single stage HP turbine drove the 9 stage HP compressor, whilst a 3 stage LP turbine drove, not only the propeller (via a reduction gearbox), but a 6 stage LP compressor. The combustor was cannular.
So the Tyne, like the ill-fated Bristol Orion, had a shared-load LP turbine, as opposed to a free power turbine, as used in the Bristol Proteus and most modern turboprop engines.
The Mark 515 Tyne had a nominal Take-off power output of 5730shp, flat rated to ISA+16.8C.
A few engines still remain in service.
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