The Dornier Do 31 is an experimental, jet-propelled, vertical take-off and landing cargo aircraft that was designed and produced by West German aircraft manufacturer Dornier.
Fairings at the top of a lift nacelle in the open position
The four Rolls-Royce RB162 lift engines seen from the bottom of a nacelle
Pitch control nozzles in the tail, fed from the Pegasus engines, two pointing up, two pointing down
The Rolls-Royce RB.162 is a lightweight British turbojet engine produced by Rolls-Royce Limited. Developed in the early 1960s, it was specially designed for use as a lift engine for VTOL aircraft but
Rolls-Royce RB.162-4D on display at the Dornier Museum Friedrichshafen