What was the date frame of the EE P.42 project?
It seems a pity that the West (i.e. NATO) could not get their act together, for imagine if the United States with their North American F-108 Rapier, Canada with their CF-105 Arrow and the British with their English Electric P.42 project had have worked together on a common Long-Range, Supersonic Interceptor, that would have been fielded by NATO?
M.A.D