The biggest Russian company engaged in design, development and production of experimental aircraft engines. The company developed more than 40 original and modified engines for Tu-114, Tu-144, Tu-154, IL-62,IL-86, An-22, Tu95, Tu-22-Вн, Tu-160 aircraft as well as for N-l vehicle. Mechanical drives for gas-pumping units and power generators of 16...25 MW power have been developed on the base of aircraft gas turbine engines. Highly efficient NK-93 propfan engine for I1-96M and Tu-330 aircraft, NK-123 VR RUSSIA 283 MOSCOW INTERNATIONAL AEROSPACE SALON Ц 2001 turboprop engine of 550 hp power for 11-100 aircraft, NK-89 bypass engine operating with liquefied natural gas, NK-38 ST and NK-126 gas turbines (with power turbines) of 16 and 4 MW power correspondingly for gas-pumping assemblies are under development now.