2015 Russian Sukhoi Su-24 shootdown military of its jet's flight plan. The Russian pilot and weapon systems officer both ejected from the aircraft. The weapon systems officer was rescued; the pilot was shot and killed by Syrian rebel ground fire while descending by parachute. A Russian naval infantryman from the search and rescue team launched to retrieve the two airmen was also killed when a rescue helicopter was targeted by the rebels. The shooting down of the Sukhoi Su-24M was the first destruction of a Russian or Soviet Air Forces warplane by a NATO member state since the attack on the Sui-ho Dam (during the
Sukhoi Su-30MKK Mach 0.9, and this problem was completely solved on Su-30MKK by adopting new measures. According to the Sukhoi Design Bureau, Su-30MKK is the first of the Flanker family to achieve it after Su-35 / 37 (Flanker-E/F) and Sukhoi Su-30MKI. Higher percentage of composite material is used for Su-30MKK in comparison to the original Su-30MK. In addition, new aluminum alloy were used to replace the old type used on Su-30MK for weight reduction. The twin rudders mainly made of carbon fiber composite material were larger on Su-30MKK in comparison to that of the original Su-30MK, but contrary to what was once