DM-2, DM-3, and DM-4

Lippisch and his team of students designed an aircraft based on the DM-1 and powered by a single turbojet. Designated the DM-2, it was to be used to investigate the effects of high speeds on delta airframes. A speed of 497-746 mph (800-1,200 km/hr) at high altitude was expected, but the DM-2 never got off the drawing board.

 An even faster version of the delta-wing DM-1 and DM-2, powered by two rocket motors and designated DM-3, was expected to achieve a speed of over 1,240 mph (2,000 km/hr) at high altitude. This design was not built and nor was the DM-4, intended as a supersonic delta-wing research aircraft fitted with a variety of powerplants.