Sukhoi Su-57 the Su-27. Extendible refueling probe is available to further increase its range. In the Su-57's design, Sukhoi addressed what it considered to be the F-22's limitations, such as its inability to use thrust vectoring to induce roll and yaw moments and a lack of space for weapons bays between the engines, and complications for stall recovery if thrust vectoring fails. The Su-57 will be the first operational aircraft in Russian Air Force service to use stealth technology. Similar to other stealth fighters such as the F-22, the airframe incorporates planform edge alignment to reduce its radar cross-section (RCS); the leading
Sukhoi Su-24 forces, split 321 with the Russian Air Force and 94 with the Russian Navy. The Russian Air Force will eventually replace the Su-24 with the Sukhoi Su-34. The Soviet Union used some Su-24s in the Soviet–Afghan War, with an initial round of strikes in 1984 and a second intervention at the end of the war in 1988. No Su-24 were lost. On October 13, 1990, Syrian Air Force jets entered Lebanese air space in order to strike General Michel Aoun's military forces. Seven Su-24 jets were used in this operation. During Operation Desert Storm, the Iraqi Air Force evacuated 24