All I can come up with at the moment is a plan view and a side profile ...been a long day and my electric blanket is beckoning me. (Are WE going to win the Ashes?
)
Clues;
Two seats.
Delta wing.
Conventional tail
'Planned' to have two Rolls-Royce Avon Engines.
'Designed' to achieve Mach 1.5 at altitude.
It was a contender for the Vampire replacement programme.
Circa 1949.