Sukhoi T-3 and missile sub-systems, two of the prototypes were converted to become the PT-7 and PT-8. The PT-7 had a variable intake ramp, while the PT-8 had an extended nose with a translating centerbody. Although not proceeded with, the T-3 served as the basis for what would eventually become the Sukhoi Su-9, forming the backbone of the PVO during the 1960s. Sukhoi T-3 The Sukhoi T-3 was a prototype Soviet fighter aircraft. Starting in the early 1950s, the development of the T-3 proceeded in parallel with the S-1 which would eventually become the Sukhoi Su-7. While the S-1 was a conventional
Sukhoi system, landing braking parachute, catapult ejection seat with telescopic trolley, and a jettisonable nose with a pressurized cockpit. From 1949, Sukhoi fell out of Stalin's favor and in a government resolution, the Sukhoi Design Bureau was scrapped, and Sukhoi was forced to return to work under Andrei Tupolev, this time as Deputy Chief Designer. In 1953, the year of Stalin's death, he was permitted to re-establish his own Sukhoi Design Bureau, set up with new production facilities. After the collapse of the Soviet Union, each of the multitude of bureaus and factories producing Sukhoi components was privatized independently. In the