Société Anonyme pour l'Aviation et ses Derives (SPAD) of Paris was born out of the ashes of Deperdussin. Their first designs were unusual fighters with a pulpit in front of a tractor propeller, but their later two seaters were more conventional, and their fighters were some of the best designs of the war.
Aircraft from the Great War or shortly thereafter include:
- The SPAD 15 was a prototype using the same 160hp Gnome 9Nc as the Nieuport 28. It was not selected for production.
- The SPAD 18 was a single seater with a cannon, like the SPAD 12, but it was not developed. The airframe was reused in the SPAD 20 design.
- The SPAD 19 was apparently a two-seater prototype, but little else is known about the type.
- The SPAD 21 was a follow-on to the SPAD 17 with a 300hp Hispano-Suiza 8Fb engine. It was too late to consider for production.
- The SPAD 22 was a SPAD 17 derivative with swept wings on top and reverse-swept wings on the bottom. Only the prototype was built.
- The SPAD 23 was a turbocharged single-seat fighter that may have never been completed.
- The SPAD 24 was a SPAD 14 with conventional undercarriage, for use in flying off battleship turrets. Only the prototype was built.
- Davilla, p.474
- Davilla, p.514.
- Davilla, p.523.
- Davilla, p.526.
- Davilla, p.527.
- Davilla, p.528.