Karl Grulich, an engineer associated with Gothaer Waggonfabrik, the company which had produced the Gotha series of bombers in World War I.

[3] Its cantilever wing was straight-tapered, with no sweep on the leading edges, and with long, curved tips.

The wing was mounted over the fuselage on a cabane of four sloping metal struts to the front spar and another six to the rear.

A large area tailplane was mounted on top of the fuselage, with split elevators to allow rudder movement.

Metal V-form landing legs from each side of the lower fuselage, strut-reinforced laterally, carried a single axle attached via rubber chord shock absorbers.