The Roland D II was a derivative of the D I representing an attempt to improve forward and downward view from the cockpit.

The Roland D III employed a different wing arrangement to preceding Roland fighters.

The Roland D III employed a different wing arrangement to preceding Roland fighters.

The unsuccessful Lewis & Vought VE-8

The VE-9 was essentially an improved VE-7.

The unsuccessful Lewis & Vought VE-8

The Roland D IV, later known as the Dr I, introduced a noteworthy departure from the structural methods employed by earlier Roland fighters.