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Aviation History
1960
1960 - 2214.PDF
Flight, 7 October 1960 Another Plessey development for a.c. generation Plessey constant speed drive starter unit This new and versatile equipment combines in one self-contained unit a precision constant speed drive with an auxiliary power drive. „.*..-: .; It is designed to fulfil the exacting requirements of modern a.c. techniques, using existing or advanced design alternators. HIGH OVERALL EFFICIENCIES • Maximum efficiency can be matched to cruise, or other conditions taking mechanical power only from the engine. • Trimming unit provides a "stiff" drive with instan- taneous response. • Negligible cooling under all conditions; eminently suitable for supersonic aircraft. • Low installed weight. • Geometrical arrangement flexible. • Engine starting may be achieved by connection to a low pressure air supply. • The unit permits ground checking of aircraft systems without the need to run main engines when supplied with low pressure air. • These features may also be used during flight in the event of engine failure. ('Patents applied for) For qualifiedengineers interested in working on advanced equipment of this type, the opportunities at Plessey are outstanding. Please write to the Personnel Officer. Publication No. 351 gives further details of this new and important Plessey project. Aircraft & Atomic Energy Group • Aircraft Mechanical Division THE PLESSEY COMPANY LIMITED - ILFORD • ESSEX - Telephone: llford 3040 Overseas Sales Organisation: Plessey International Limited • llford • Essex • Telephone: llford 3040
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