High Quality Content by WIKIPEDIA articles! The Sukhoi Su-9, or Samolyet K (Russian: Aircraft K), was an early jet fighter aircraft built in the Soviet Union shortly after World War II. The Su-9 also served as the basis for the Su-11 (Samolyet LK) and Su-13 (Samolyet TK). While it bore a superficial resemblance to the German Messerschmitt Me 262, the Su-9 was not directly related to that aircraft. The first flight took place on 13 November 1946 and trials the following month proved promising. Su-9 was an advanced design for the time with an ejection seat and a provision for JATO rockets (2x 11.27 kN/2,530 lbf thrust for 8 seconds).