Editing Caudron C.714 (section)

==Design and development==
The original specification that led to the C.710 series was offered in 1936 in order to quickly raise the number of modern aircraft in French service, by supplying a "light fighter" of wooden construction which could be built rapidly in large numbers without upsetting the production of existing types. The contract resulted in three designs, the [[Arsenal VG-33|Arsenal VG-30]], the [[Bloch MB.700]],<ref name="Dassaultmb700">{{cite web |title=MB 700: origins, characteristics and performance data |url=https://www.dassault-aviation.com/en/passion/aircraft/military-bloch-aircraft/mb-700/ |website=Dassault Aviation, a major player to aeronautics |access-date=25 May 2019}}</ref> and the C.710. Prototypes of all three were ordered.

The original C.710  was a [[monoplane]] of all-wooden construction developed from an earlier series of air racers. One common feature of these aircraft  was an extremely long nose, with the cockpit far back on the fuselage. It had a fixed [[Aircraft fairing#Types|spatted]] landing gear;  the [[vertical stabilizer]] was semicircular.<ref name="lefan3p2">Mihaly May 1972, p. 2</ref> Armament consisted of a 20&nbsp;mm [[Hispano-Suiza HS.404|Hispano-Suiza HS.9]] cannon under each wing in a small pod, with 60 rounds per gun.<ref name="lefan3p3">Mihaly May 1972, p. 3</ref><ref name="complete fighters p111"/>  The nose housed the 336&nbsp;kW (450&nbsp;hp) [[Renault 12R|Renault 12R-01]], a [[supercharger|supercharged]] inverted air-cooled [[V-12 engine]] which was developed by putting together two [[Renault 6Q]] engines.<ref>{{cite web |url=http://aalebourget.fr/moteur-caudron-cr-714/ |title=The engine of the Caudron CR.714 |language=fr |website=Ailes Anciennes Le Bourget |access-date=December 4, 2017}}</ref> The aircraft

The C.710 prototype first flew on 18 July 1936.<ref name="complete fighters p111">Green and Swanborough 1994, p. 111.</ref> The C.710 had a speed of {{convert|455|km/h|mph kn|abbr=on}} at {{convert|4000|m|ft|abbr=on}},<ref name="lefan35p7">Mihaly July 1972, p. 7</ref><ref name="complete fighters p111"/> but the [[Morane-Saulnier M.S.405]] was finally selected instead, mainly due to its superior rate of climb.<ref name="lefan3p3"/> The prototype C.710 was destroyed in a crash on 1 February 1938.<ref name="complete fighters p111"/>

The C.711 was a proposed racing aircraft which was not built and the C.712 was a version intended to break the World Air Speed Record.<ref>Green 1960, p. 39</ref> It used the fuselage of the C.710 with the wing of the [[Caudron C.580]], while its Renault 613 engine, although basically the same as that of the C.710, had its power increased to {{convert|750|hp|kW|abbr=on}} by increasing compression, allowed by the use of 100 [[Octane rating|Octane fuel]].<ref name="lefan77p89">Robinson 1976, pp. 8–9</ref> The C.712 made its first flight on 24 December 1936,<ref name="lefan77p9">Robinson 1976, p. 9</ref> but was destroyed in a crash at [[Istres]] on 29 April 1937 during a record attempt.<ref name="lefan77p112">Robinson 1976, pp. 11–12</ref> The C.713, which flew on 15 December 1937, was a modified fighter which introduced retractable landing gear and a more conventional triangular vertical stabilizer.<ref name="complete fighters p111"/>

The final evolution of the 710 series was the C.714 Cyclone, a variation on the C.713 which first flew in April 1938 as the C.714.01 prototype. The principal changes were a new wing [[airfoil]] section, a strengthened fuselage, and, instead of two cannon, four 7.5&nbsp;mm [[MAC 1934]] machine guns in the wing fairings. It was powered by the newer 12R-03 version of the engine, which introduced a new [[carburettor]] which could operate in negative [[g-force|''g'']].

The French Air Force ordered 20 C.714s on 5 November 1938, with options for a further 180. Production started at the [[Renault]] factory in the [[Paris]] suburbs in summer 1939.<ref>Green 1960, pp. 39–40.</ref>

Other projected versions were the C.720 [[Trainer aircraft|trainer]] with a 75 or 164&nbsp;kW (100 or 220&nbsp;hp) engine, the C.760 fighter with a 559&nbsp;kW (750&nbsp;hp) [[Isotta-Fraschini Delta]] engine, and the '''C.770''' fighter with a 597&nbsp;kW (800&nbsp;hp) Renault V-engine. None of these reached production.