Great old snapshot. The Fairey Delta 1 was a late forties British research project intended to develop a vertical takeoff jet as well as to test the characteristics of the then new delta wing. Three units were planned. During the design process, the vertical takeoff idea was abandoned. The first one first flew in 1950, the numerous stability and performance issues caused the cancellation of the other two and also the program. Fairey continued to test the aircraft, but a crash during a landing in 1955 caused enough damage that it was scrapped. More here.
Post WW2 was an exciting period for aircraft development.