The Do 31E is so far the only vertical take-off (VTOL) jet transport that have ever reached flight status.This outrageous aircraft was designed to counter the perceived vulnerability of the airfields in case of a total war. In order to achieve its difficult performance goals, The design was equipped with two vectored-thrust RR Pegasus turbofans (the Harrier’s engine) and two huge wingtip pods with four RR RB162 lift jets each. The Do 31 made its maiden flight in 1967 and two years later it was mature enough to set a few FAI records.
Quite a contrast to nowadays snail’s pace programs.Sadly, the project was cancelled in 1970 due to its sheer complexity, inherent lack of range and payload.
The Germans hadn’t surely lost their touch.