Designed by André Herbemont, the S.51 shared its basic configuration with his other aircraft of the period, being a biplane with a swept upper wing and unswept lower wing, joined by I-shaped interplane struts. Unlike earlier designs, the S.51 used metal construction for the wings.
The prototype S.51 was rejected by the French authorities, but revised versions found export customers in the Polish Air Force, which bought 50 of them, and the Turkish and Soviet air forces which each bought a single example. Another development, the S.51/3, was experimentally fitted with the first controllable-pitch propeller developed in France, also designed by Herbemont.[2]
Variants
S.51
Prototype for French evaluation, 1x 280 kW (380 hp) Gnome et Rhône 9Aa radial engine.[3]
S.51/2
Refined version exported to Poland, 1x 310 kW (420 hp) Gnome et Rhône 9Ab radial engine.[4]
S.51/3
Prototype with variable-pitch propeller.
S.51/4
Export version for Turkey and the USSR with two extra machine guns in the wings.
^World Aircraft Information Files. London: Bright Star Publishing. pp. File 890 Sheet 42.
^Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 164.
^Parmentier, Bruno (4 December 2001). "SPAD S-51". Aviafrance (in French). Paris. Retrieved 2 March 2018.
^ abParmentier, Bruno (12 April 2003). "SPAD S-51-2". Aviafrance (in French). Paris. Retrieved 2 March 2018.
^. Archived from the original on 5 February 2015. Retrieved 10 January 2015.
^Grey, C.G., ed. (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. p. 86c.
Bibliography
Bruner, Georges (1977). "Fighters a la Francaise, Part One". Air Enthusiast (3): 85–95. ISSN 0143-5450.
Kotelnikov, V.; Kulikov, V. & Cony, C. (November 2001). "Les avions français en URSS, 1921–1941" [French Aircraft in the USSR, 1921–1941]. Avions: Toute l'Aéronautique et son histoire (in French) (104): 37–43. ISSN 1243-8650.
External links
Media related to Blériot-SPAD S.51 at Wikimedia Commons
January 01, 2023
blériot, spad, bleriot, spad, french, fighter, aircraft, developed, 1924, response, french, force, requirement, aircraft, replace, their, obsolete, nieuport, delage, 51role, fightermanufacturer, blériotdesigner, andré, herbemontfirst, flight, june, 1924primary. The Bleriot SPAD S 51 was a French fighter aircraft developed in 1924 in response to a French Air Force requirement for an aircraft to replace their obsolete Nieuport Delage NiD 29s 1 S 51Role FighterManufacturer BleriotDesigner Andre HerbemontFirst flight 16 June 1924Primary users Polish Air ForceTurkish Air ForceSoviet Air ForceNumber built ca 60Design and development EditDesigned by Andre Herbemont the S 51 shared its basic configuration with his other aircraft of the period being a biplane with a swept upper wing and unswept lower wing joined by I shaped interplane struts Unlike earlier designs the S 51 used metal construction for the wings The prototype S 51 was rejected by the French authorities but revised versions found export customers in the Polish Air Force which bought 50 of them and the Turkish and Soviet air forces which each bought a single example Another development the S 51 3 was experimentally fitted with the first controllable pitch propeller developed in France also designed by Herbemont 2 Variants EditS 51 Prototype for French evaluation 1x 280 kW 380 hp Gnome et Rhone 9Aa radial engine 3 S 51 2 Refined version exported to Poland 1x 310 kW 420 hp Gnome et Rhone 9Ab radial engine 4 S 51 3 Prototype with variable pitch propeller S 51 4 Export version for Turkey and the USSR with two extra machine guns in the wings Operators Edit PolandPolish Air Force 11th Kosciuszko Squadron Soviet UnionSoviet Air Force One aircraft used for tests and trials Spain Spanish Bleriot SPAD S 51Spanish Republican Air Force 5 TurkeyTurkish Air ForceSpecifications S 51 2 Edit Bleriot SPAD S 51 3 view Aero Digest August 1930 Data from Jane s all the World s Aircraft 1928 6 Aviafrance S 51 2 4 General characteristicsCrew 1 Length 6 45 m 21 ft 2 in Wingspan 9 47 m 31 ft 1 in Height 3 1 m 10 ft 2 in Wing area 24 27 m2 261 2 sq ft Empty weight 990 kg 2 183 lb Gross weight 1 360 kg 2 998 lb Powerplant 1 Gnome amp Rhone 9Ab Jupiter 9 cylinder air cooled radial piston engine 310 kW 420 hp Propellers 2 bladed fixed pitch propellerPerformance Maximum speed 245 km h 152 mph 132 kn at 100 m 330 ft Rate of climb 7 2 m s 1 420 ft min Time to altitude 4 000 m 13 000 ft in 9 minutes Wing loading 52 6 kg m2 10 8 lb sq ft Power mass 0 24537 kW kg 0 14925 hp lb Armament 2 fixed forward firing 7 7 mm 0 303 in Vickers machine gunsSee also EditRelated lists List of aircraft of the Spanish Republican Air Force List of Interwar military aircraftReferences Edit World Aircraft Information Files London Bright Star Publishing pp File 890 Sheet 42 Taylor Michael J H 1989 Jane s Encyclopedia of Aviation London Studio Editions p 164 Parmentier Bruno 4 December 2001 SPAD S 51 Aviafrance in French Paris Retrieved 2 March 2018 a b Parmentier Bruno 12 April 2003 SPAD S 51 2 Aviafrance in French Paris Retrieved 2 March 2018 Aircraft that took part in the Spanish Civil War Archived from the original on 5 February 2015 Retrieved 10 January 2015 Grey C G ed 1928 Jane s all the World s Aircraft 1928 London Sampson Low Marston amp company ltd p 86c Bibliography EditBruner Georges 1977 Fighters a la Francaise Part One Air Enthusiast 3 85 95 ISSN 0143 5450 Kotelnikov V Kulikov V amp Cony C November 2001 Les avions francais en URSS 1921 1941 French Aircraft in the USSR 1921 1941 Avions Toute l Aeronautique et son histoire in French 104 37 43 ISSN 1243 8650 External links Edit Media related to Bleriot SPAD S 51 at Wikimedia Commons Retrieved from https en wikipedia org w index php title Bleriot SPAD S 51 amp oldid 1041209400, wikipedia, wiki, book, books, library,
