This blocked the connecting walkway that previously on earlier machines allowed crew members to move between the three gun stations.

[1][2][3] Later versions expanded the tunnel to remove the lower gun, providing a slot in the upper fuselage that allowed the rear gunner to remain stationary.

In February 1918, Gothaer tested a compound tail unit with biplane horizontal stabilizers and twin rudders.

The resulting G.Va subvariant incorporated the new tail, as well as a slightly shorter forward fuselage with an auxiliary nose landing gear.

Carried an increased payload compared to the earlier G.Va, and operated at a maximum takeoff weight of 4,550 kg (10,030 lb).

By the Armistice, all 80 aircraft were built but the last batch did not reach the front and was delivered direct to the Allied special commission.