Caudron R.11
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The Caudron R.11 (or R.XI in contemporary usage), was a French three-seat twin-engine long range escort fighter biplane developed and produced by Caudron during the First World War.[1]
Development
The R.XI was intended to fulfill a French Corps d'Armee requirement for a long range three-seat escort fighter. Its design was similar to the Caudron R.4, but without a nose-wheel, and with longer wings and fuselage, with two bracing bays outboard the engines rather than three, along with a much larger tail. Hispano-Suiza 8Ba liquid-cooled V-8 engines were housed in streamlined nacelles just above the lower wing, fitted with frontal radiators, which replaced the air-cooled Renault engines used in the R.4.
Operational history
Production of the 1000 R.XIs ordered by the French Army began in 1917, with the first aircraft completed late in that year.[2]
The first escadrille, R 46, was equipped with the type in February 1918 and the last escadrille to form was R 246,[3] before the Armistice resulted in an abrupt end to production, at which point approximately 370 aircraft had been completed by Caudron, Régy Frères and Gremont.[2]
Variants
- Caudron R.XI C.3
- Heavy escort fighter with Template:Cvt Hispano-Suiza 8Bda engines.
- Caudron R.XII C.3
- R.XI with the more powerful Template:Cvt Hispano-Suiza 8Fb engines that were expected to boost performance. Sources differ, but it may have had a slightly increased wing area, to Template:Cvt and an extra wing bay was added outboard of the engines. It first flew in November 1918 but was still undergoing testing in mid-1919 and no production followed despite plans to equip 12 escadrilles.[4]
- Caudron R.XIV Ca.3
- Similar to the R.XII, but armed with a Template:Cvt Hotchkiss cannon in addition to the normal complement of 5 machine guns, and with further increased wing area, to Template:Cvt, and a larger, unbalanced rudder. A single example was built following the conversion of an R.XI to carry the cannon in August 1918.[4]
Operators
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- Royal Air Force received two examples for evaluation as a bomber.[3]
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- American Expeditionary Force received two examples for evaluation, and two others were detached to US units.[3]
Specifications (Caudron R.XI C.3)
Template:Aircraft specs Related development
Aircraft of comparable role, configuration, and era
References
Notes
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Bibliography
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