Fedden Cotswold
The Cotswold was a turboprop aircraft engine designed by Roy Fedden after the Second World War.
Intended to power airliners for short or medium ranges, cruising at and, the Cotswold produced, and was meant to be installed within the wings of aircraft in either tractor or pusher configuration. With eleven axial compressor stages and two turbine stages, it was only in diameter and weighed.
The company making it, Roy Fedden Ltd., went into liquidation in April 1947, and no engines were manufactured.