SPAD S.XIII
The SPAD S.XII is a French fighter aircraft of World War I. It was used by French pilots, but also by Belgians, British, and American pilots. More than 8400 examples were built.
SPAD S.XIII Media
A SPAD S.XIII of the American 103rd Aero Squadron - note exposed aileron bellcrank protruding from lower wing, also used for the A.2 "pulpit fighter" and S.VII.
A SPAD XIII painted to represent the aircraft flown by Arizona native Frank Luke Jr., the first aviator awarded the Medal of Honor, the highest military decoration in the United States, in World War I.
SPAD XIII Edward Rickenbacker
Reference
1.SPAD S.XII Reference book. Link to Book publisher.