7Z. (designation reused for radial) Clerget 9B (1915) , nine-cylinder. (designation reused for radial) Clerget 9Bf (1915) , nine-cylinder long stroke version of the Clerget 9B. The most numerous British production engine with 2,350 units being built. Clerget 9J (1917) , nine-cylinder. Redesigned with aluminium pistons, tubular connecting rods and revised valve gear. Clerget 9Z (1915) , nine-cylinder. Clerget 11Eb (1918) , 11-cylinder, single-row engine. Rotary engines on display A locally-built Clerget 9B of 1917 is displayed at the Museum of Lincolnshire Life. A preserved Clerget 9B engine is on public display at the Fleet Air Arm Museum, RNAS Yeovilton. Operational rotary engines The Shuttleworth Collection based at Old Warden Aerodrome in the UK, operate an airworthy late production Sopwith Triplane (G-BOCK) fitted with an original 9B as well as an airworthy late production Sopwith Camel (G-BZSC) fitted with an original long-stroke 9Bf. These aircraft can be seen displaying at home air displays through the summer months. Radial 'X' engines Clerget 16X A 420 hp (310 kW) 16-cylinder, four-row X engine. Diesel radial engines In the 1920s Pierre Clerget designed static diesel radial engines, the earliest were based on his rotary designs. Clerget 9A (1929) 100 hp (75 kW) Nine-cylinder, single row radial engine. Clerget 9B Clerget 9C Produced under licence by Hispano-Suiza as the Hispano-Suiza 9T Clerget 14F-01 (1937) 14-cylinder, two-row radial engine, flown in a Potez 25 biplane. Clerget 14F-02 Clerget 14Fcs 16H engine Clerget's final engine design was a V-16 designated Clerget 16H and known as the Type Transatlantique. It developed 2,000 hp (1,500 kW) through the use of four Rateau turbochargers. See also List of aircraft engines References "Air Board" Technical Notes issued by Controller Technical Department for persons holding an official position in His Majesty's Service dated 1918 External links Image and description of aClerget 9B rotary engine A Clerget-Blin 9Bf, Gwynnes Ltd, at Powerhouse Museum, Sydney, Australia Clerget engine details and type listings (French) Air-cooled aircraft piston engines 1910s aircraft piston engines Rotary aircraft piston engines Aircraft radial diesel engines