Designed by Louis Béchereau in 1916, the SPAD S.XI reconnaissance bomber entered service in 1917. Plagued with engine problems and difficult to fly when armed with bombs, it was withdrawn from combat in June 1918.
SPAD S.XI Specifications
Société Anonyme Pour L'Aviation et ses Dérivés
Hispano-Suiza 8BE, 8-cylinder, liquid cooled inline, 235 hp