Sir Alfred Hubert Roy Fedden MBE, FRAeS (6 June 1885 – 21 November 1973) was an engineer who designed most of Bristol Engine Company's successful piston...

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...

mountaineer Romilly Fedden (1875–1939), British artist Roy Fedden (1885–1973), British engineer Fedder This page lists people with the surname Fedden. If an internal...

Mary Fedden, OBE RA PPRWA (14 August 1915 – 22 June 2012) was a British artist. Sometimes mistakenly described as the daughter of Roy Fedden (who was...

making him offers regarding his wartime projects. Aeronautical engineer Roy Fedden remarked that the only craft that could approach the capabilities attributed...

Hercules is a 14-cylinder two-row radial aircraft engine designed by Sir Roy Fedden and produced by the Bristol Engine Company starting in 1939. It was the...

location of the Heinkel-Hirth engine works, the post-war Fedden Mission, led by Sir Roy Fedden, found jet engine manufacturing was simpler and required...

in May 1919. For £15,000 Bristol got the Cosmos design team, headed by Roy Fedden, along with a small number of completed engines and tooling. Although...

nine-cylinder, air-cooled, single-row, piston radial engine. Designed by Roy Fedden of the Bristol Aeroplane Company it was used to power both civil and military...

nine-cylinder, single-row, air-cooled radial aero engine. Designed by Roy Fedden of the Bristol Aeroplane Company, it was used to power both civil and...

projected enlarged capacity version of the Centaurus was designed by Sir Roy Fedden; cylinders were produced for this engine, but it was never built. Known...

aero-engines in a factory in Fishponds, Bristol during World War I. Sir Roy Fedden, the company's principal designer, developed the 14-cylinder radial Mercury...

decreasing at low and medium loads, which ultimately reduced the efficiency. Roy Fedden at Bristol tested an arrangement in the Bristol Jupiter IV engine in 1928...

The Fedden car (or F-car) was a British automobile produced after the Second World War by Roy Fedden Ltd. It was never manufactured. Designed by Roy Fedden...

Romilly Fedden (1875–1939) was an English artist and watercolourist. The son of businessman Henry Fedden, his younger brother was the engineer Roy Fedden. Romilly...

German aircraft and aeroengines. It was named for the Mission's leader, Roy Fedden. It visited Bad Oeynhausen, Bad Eilsen, Völkenrode, Braunschweig, Magdeburg...

of these advantages were evaluated and established during the 1920s by Roy Fedden, Niven, and Harry Ricardo, possibly the sleeve valve engine's greatest...

efficiency and compact design, particularly in multi-row radial engines. Roy Fedden, Bristol's primary engine designer, became interested in the concept and...

as the Shvetsov M-22. The Jupiter was designed during World War I by Roy Fedden of Brazil Straker and later Cosmos Engineering. The first Jupiter was...

"Tockington Manor" (PDF). BAC 100: 2010. Gunston, Bill (1998). Fedden – the life of Sir Roy Fedden. RRHT. ISBN 1-872922-13-9. Historical Series, Nº26. LeMoir...

worth building. Postwar, the British scientific mission's leader, Sir Roy Fedden, called it "interesting and innovative" and considered it "one of the...

Kolbermoor, location of the Heinkel-Hirth engine works, the Fedden Mission, led by Sir Roy Fedden, found jet-engine manufacturing was simpler and required...

engine, another sleeve valve design. For these engines, chief designer Roy Fedden developed special low-drag NACA cowlings, which exhausted air through...

and from there to England at the request of British engine designer Roy Fedden. He had them work on the design of a turboprop engine for a proposed C-54...

more harmful to production than attacks on factories themselves, Sir Roy Fedden (in his report on a postwar British scientific intelligence mission) calling...

Bristol branch engine collection is housed in the Sir Roy Fedden Heritage Centre. As well as Roy Fedden designed engines from the Bristol Aeroplane Company...

used by civil operators due to the expense of the cartridges. In 1920 Roy Fedden designed a piston engine gas starting system, used on the Bristol Jupiter...

Fighter Aircraft, Bristol: Parragon, 1997 ISBN 0-75252-608-1 Fedden – the life of Sir Roy Fedden, RRHT, Historical Series Nº26, 1998 ISBN 1-872922-13-9 Soviet...

one of them, the Lockheed Electra 12A, with Roy Fedden and prepared a design to match it using Fedden's Bristol Aquila engine which produced 500 hp,...

engines for the RFC in World War I. Cosmos Engineering bought the firm and Roy Fedden designed the Cosmos Mercury engine before the company was forced into...