Salmson 4

The success of the German J-Class armored ground-attack planes led to the 'Ab2' specification for an armored two-seater. Salmson met this need with a modified Salmson 2, the Salmson 4. The Salmson 4 added width and an additional bay to the wings for extra lifting power to compensate for the plane's light armor. Ordered in mid-1918, only twelve had been delivered by the Armistice, and no more were built.