Armstrong Whitworth A.W.52 

                                    This is the ill fated first prototype of the A.W.52.   To say that it had stability problems would be a
                                    gross understatement inasmuch as even painting roundels on the wings was sufficient to cause axis
                                    control pitch problems.    It was during a test flight when the flutter became untenable that the aircraft
                                    was lost. Recognizing that it would be impossible to gain stability, the pilot, John Lancaster, became
                                    the first in the UK to make an emergency ejection.    The A.W.52 project was abandoned and the
                                   second prototype (TS368) was scrapped.