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The Cotswold was a turboprop aeroengine designed by Roy Fedden after the Second World War.

Intended to power airliners for short or medium ranges, cruising at 300–350 mph (480–560 km/h; 260–300 kn) and 30,000 ft (9,100 m), the Cotswold produced 1,350 hp (1,010 kW; 1,370 PS), and was meant to be installed within the wings of aircraft in either tractor or pusher configuration.[1] With eleven axial compressor stages and two turbine stages,[2] it was only 27 in (69 cm) in diameter[3] and weighed 760 lb (345kg).[4]

The company making it, Roy Fedden Ltd., went into liquidation in April 1947, and no engines were manufactured.[5]


  1. Christopher, John. The Race for Hitler's X-Planes (The Mill, Gloucestershire: History Press, 2013), p.205.
  2. Christopher, p.206.
  3. Christopher, p.205.
  4. Christopher, p.206.
  5. Christopher, p.205.


  • Christopher, John. The Race for Hitler's X-Planes. The Mill, Gloucestershire: History Press, 2013.