Tupolev Tu-12
The Tupolev Tu-12 (development designation Tu-77) was an experimental Soviet jet-powered medium bomber developed from the successful piston-engined Tupolev Tu-2 bomber after the end of World War II. It was designed as an interim aircraft to familiarize Tupolev and the Soviet Air Forces (VVS) with the issues involved with jet-engined bombers. == Development == The Tupolev Tu-73 jet-engined bomber project was suffering delays in early 1947 and Tupolev suggested re-engining the Tu-2 medium bomber with imported British Rolls-Royce Nene jet engines to produce a jet bomber as quickly as possible.