MiG-19

The Mikoyan-Gurevich MiG-19 (Russian: Микоян и Гуревич МиГ-19) (NATO reporting name "Farmer") is a Soviet second-generation, single-seat, twin jet-engined fighter

aircraft. It was the first Soviet production aircraft capable of supersonic speeds in level flight. A comparable U.S. "Century Series" fighter was the F-100 Super Sabre, although

it would oppose the more modern F-4 Phantom II and F-105 Thunderchief over Vietnam.
On 20 April 1951, OKB-155 was given the order to develop the MiG-17 into a new fighter called "I-340", which was to be powered by two Mikulin AM-5 non-afterburning jet

engines (a scaled-down version of the Mikulin AM-3) with 19.6 kN (4,410 lbf) of thrust. The I-340 was supposed to attain 1,160 km/h (725 mph, Mach 0.97) at 2,000 m (6,562

ft), 1,080 km/h (675 mph, Mach 1.0) at 10,000 m (32,808 ft), climb to 10,000 m (32,808 ft) in 2.9 minutes, and have a service ceiling of no less than 17,500 m (57,415 ft). The

new fighter, internally designated "SM-1", was designed around the "SI-02" airframe (a MiG-17 prototype) modified to accept two engines in a side-by-side arrangement and was

completed in March 1952.