SPAD S.XIII

History of SPAD P. XIII

SPAD S. XIII (p. 13) was a further development of the successful SPAD S. VII (p. 7), which was eventually surpassed by newer and better German aircraft designs from World War I. S. XIII will prove the success of SPAD (Societe Pour l'Aviation et ses Derives) by adding another excellent fighter to her resume and providing an impressive platform for the conflict.

The S. XIII had a longer wingspan, more powerful engines and two machine gun systems, as well as more subtle design changes than the S. VII. Eventually, more than 8,400 prototypes will roll off the assembly line.

The configuration of the S. XIII is similar in most respects to the previous S. VII. The pilot, wings, landing gear and engines are all mounted on the front of the fuselage. The structure consists of an internal wooden structure, using fabric skins and light alloys near the engine area. The biplane wings have the same span, with the lower assembly directly aligned with the upper. The pilot sits aft of the upper wing assembly in the open-air cockpit, facing forward with twin 7.7mm Vickers machine guns, which are synchronized by breaker gears to fire through rotating propellers.

The S. XIII completed its maiden flight on April 4, 1917, and fought on the front lines in May of that year.

In battle, the S. XIII proved its worth (and pedigree). The plane was able to fly well over the German D.VII aircraft and even rivaled the legendary Sopwith Camel. Structurally, the S. XIII is strong enough to take quite a bit of punishment before inevitably giving way.

This structural integrity generally makes diving a superior strategy for S. XIII users. If there's a major flaw in the design, it's its limited maneuverability at lower speedsa point alone that presents a hazard in combat and aircraft landings.

Nonetheless, the S.XIII proved to be a popular mount for Allied aces, including the American Eddie Rickenbacker and the French Rene Fonck and Georges Guynemer (Guynemer personally advocated improvements to the S.VII, which eventually led to the development of the S.XIII) . In the post-war years, the model was also in service with air forces around the world.

Like the S. VII before it, the S. XIII was designed by Louis Bechereau.

Specification

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Performance

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