The Cau R.11 appeared in the last year of the war and evolved from armed reconnaissance to bomber escort.
Detailing the development and operational history of the Caudron R.11 Escort Fighter / Light Bomber / Reconnaissance Aircraft. Entry last updated on 8/5/2016. Authored by Staff Writer. Content ©www.MilitaryFactory.com
The R.11 featured many refinements over preceding bomber-type aircraft utilized during the war. The 2 x 220 horsepower Hispano-Suiza engines (powering two-bladed wooden propellers) were housed in aerodynamically-refined nacelles, a design feature that would later become synonymous with all aircraft during the interwar years leading up to World War 2 (1939-1945). The fuselage was given a well-streamlined shape, contrasting the slab-sided, boxy designs of previous years. The R.11 also featured a large-area tail structure for added stability. Its undercarriage was of a typical "tail-dragger" arrangement utilizing two large, fixed landing gear legs each managing two landing wheels. The aircraft was defensed by no fewer than 5 x 7.7mm Lewis machine guns on trainable mountings to engage enemy aircraft at various angled. In the light bombing role, the R.11 carried an ordnance load of just 265 pounds, all externally. The crew of three were all positioned along the fuselage in three individual open-air cockpits with the pilot situated between the top and bottom biplane wing assemblies. The rear gunner was behind him and a bow gunner was found at the extreme forward end of the aircraft. The wings were of equal span with three bays and parallel struts.
The R.11 reported a maximum endurance of 3 hours and could manage a service ceiling up to 19,500 feet. Its top speed was 114 miles per hour from its twin engine output and aerodynamic design. The aircraft was eventually delivered to French squadrons R.46, R.239, R.240, R.241, R.242 and the R.246 and some stock fell to the American Expeditionary Force (AEF). The R.11 holds the distinction of becoming the last French production aircraft of World War 1, also forming the final French squadron (R.246) of the war.
Caudron also developed the R.12 based highly on the R.11 design though this form was never adopted. The R.14 emerged in the fighting of August 1918 and overtook any further design of the R.12.
The Caudron concern was founded in 1908 and produced military aircraft for both World War 1 and World War 2, producing over 4,000 aircraft for World War 1 service alone. It was absorbed by Renault in 1933 and the name survived into the mid-to-late 1930s.
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Relative Maximum Speed Rating
This entry's maximum listed speed (114mph).
Graph average of 90 miles-per-hour.