The Messerschmitt Me 163 Komet was a German rocket-powered interceptor aircraft.
This one was on display at the Science Museum.
It is the only rocket-powered fighter aircraft ever to have been operational and the first piloted aircraft of any type to exceed 621 mph in level flight.
Over 300 Komets were built, but the aircraft proved lacklustre in its dedicated role as an interceptor and destroyed between 9 and 18 Allied aircraft against 10 losses.
There is a Messerschmitt Me 163 Komet at RAF Cosford.