Sukhoi P-1

The Sukhoi P-1 was a prototype Soviet interceptor. Sukhoi began design studies for what became Izdeliye P in 1954 in answer to an urgent request from the Ministry of Aviation Industry. It was built around the complex and bulky Uragan-1 collision-course intercept radar, which required a crew of two and air intakes on the sides of the fuselage, and it kept the delta wing of the Sukhoi T-3 with a 57 degree leading edge sweep. The production aircraft was meant to use the Lyulka AL-9, but the prototype flew with a less powerful AL-7F. The P-1 first flew in July 1957 and had only limited testing because of the missing engine, problems with the radar and missiles and a lack of enthusiasm from the Soviet air forces. The sole prototype was given over to experimental work and later scrapped, and a twin-engine P-2 was cancelled at the mock-up review.