SPAD S.XIII

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SPAD S.XIII in the colors of Capt. Eddie Rickenbacker, U.S. 94th Aero Squadron

The SPAD S.XIII was a French biplane fighter aircraft of World War I, developed by Société Pour L'Aviation et ses Dérivés (SPAD) from the earlier highly successful SPAD S.VII. It was one of the most capable fighters of the war, and one of the most-produced, with 8,472 built and orders for around 10,000 more cancelled at the Armistice.

1 Design and development
2 Operational history
3 Operators
4 Specifications (SPAD S.XIII)
5 Related content
6 External links

[edit] Design and development

The S.VII had entered service in September of 1916, but by early 1917 it had been surpassed by the latest German scouts, leading French flying ace, Georges Guynemer to lobby for an improved version. SPAD designer Louis Béchereau initially produced the S.XII, which had limited success, and finally the S.XIII.

The S.XIII differed from its predecessor by incorporating a number of aerodynamic and other refinements, including larger wings and rudder, a more powerful Hispano-Suiza engine, and a second Vickers .303-cal. machine gun for added firepower. All these improvements led to greater increases in flight and combat performance. It was faster than its main contemporaries, the British Sopwith Camel and the German Fokker D.VII, and was renowned for its ruggedness and diving ability. However, its manoeuvrability was inferior, especially at low speeds. Poor gliding characteristics and a very sharp stall made it a difficult aircraft for novice pilots to land safely.

[edit] Operational history

A SPAD S.XIII of the Lafayette Escadrille.

It first flew on April 4, 1917, and the following month was already being delivered to the French Air Service. Other Allied forces were quick to adopt the new fighter as well, and nearly half of the 893 purchased for the United States Army Air Service were still in service in 1920. It was also exported to Japan, Poland, and Czechoslovakia after the war.

The S.XIII was flown by famous fighter pilots such as Italy's Francesco Baracca and the United States Army Air Service's Eddie Rickenbacker, who became leading aces with 34 and 26 confirmed victories, respectively.