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The Eagle was the first production Rolls-Royce aircraft engine to be used in service during World War I. Resulting from a 1914 British Admiralty requirement for an engine of about 186 kw (250 hp), development began in 1915. The first experimental engine was run in February 1915, developing 168 kw (225 hp). A total of 4,681 Eagles were manufactured at the Rolls-Royce Derby facility; 3,302 of the Eagle VIII models were built between 1917 and 1922.

The Eagle VIII powered a many British aircraft including: Airco D.H.4/4A and D.H.9A srs; ANEC III; B.A.T.F.K.26; Blackburn Blackbird; Curtiss H.12/H.16 Large America; de Havilland D.H.10C Amiens II/IIIC and D.H.16; Fairey F.17 Campania and IIIC/IIID; Felixstowe F.2A, F.3, and F.5; Handley Page H.P.12 O/400, H.P.15 V/1500, and H.P.18 W.8b; Royal Aircraft Factory F.E.2d; Short N.1B/N.2B Shirl; Sopwith Atlantic and Wallaby; Supermarine Commercial Amphibian and Sea Eagle; Vickers F.B.27 Vimy IV and 66 Vimy Commercial.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Date Circa 1917-1922 Country of Origin United Kingdom Type PROPULSION-Reciprocating & Rotary Manufacturer Rolls-Royce Ltd. (Derby, U.K.)
 Physical Description Type: Reciprocating, V-type, 12 cylinders, water cooled Power rating: 268 kW (360 hp) at 1,800 rpm Displacement: 20.3 L (1,240.56 cu in.) Bore and Stroke: 114 mm (4.5 in.) x 165 mm (6.5 in.) Weight: 409 kg (900 lb) with reduction gear Dimensions Length 184.2 cm (72.5 in.), Width 108.2 cm (62.6 in.), Height 113 cm (44.5 in.)
 Materials Steel, Aluminum, Brass, Rubber, Paint, Stainless steel, Copper, Textile
 Inventory Number A19610135000 Credit Line Transferred from the U.S. Air Force, Wright-Patterson AFB, Ohio. Data Source National Air and Space Museum Restrictions & Rights Open Access (CCO)
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