1967 Dornier Do-31 E3, D-9531

On February 10, 1967, the first prototype, (Do 31 E1, D-9530) conducted its maiden flight, powered by just the two 15,500 lbf Rolls-Royce Pegasus BE.53/2 turbofan engines. During July 1967, the third prototype (Do 31 E3, D-9531), which was furnished with eight 4,400 lbf Rolls-Royce RB162-4D vertically wing mounted turbojet lift engines, performed the first hovering flight.

Courtyard of the Deutsches Museum, Munchen 1992