J.Davilla, A.Soltan French Aircraft of the First World War (Flying Machines)

SPAD 22

  The SPAD 22 was a radically re-designed SPAD 17. Bechereau left the fuselage and engine unchanged, but the upper wing was strengthened by three main spars. The lower wing was still braced by the landing gear struts. The upper wing (as would appear on many of Herbemont's SPAD designs) had a pronounced sweepback. The lower wings were actually swept forward with an inverse taper toward the root. Because of the changes lo the wing, the single-bay interplane bracing was extensively modified. Only the upper wing was fitted with ailerons. The elevators and tailplane were also modified, incorporating horn-balanced elevators and braced by inverted V-struts.
  The reason for these changes is not totally clear; it may have been hoped that the new wings would provide the pilot with a better field of vision than the SPAD 13. The SPAD 22 was tested in 1919, but only a single example was built.


SPAD 22 Single-Seat Fighter with 300-hp Hispano-Suiza 8Fb
   Span 8.08 m; length 6.25 m; wing area 20.20 sq. in
   Armament: two 7.7-mm Vickers machineguns
   One built



SPAD 23

  The SPAD 23 was a project for single-seat biplane that was to have been fitted with a Rateau turbocharger. It was ordered by the Aviation Militaire in December 1918 but it appears that it was never completed.