D-36 Ukraine Plane

At take-off power (sea level, static, ISA):
Thrust, kg(f)	6500
Specific fuel consumption, kg/ kg(f)-h	0.350
Air flow rate, kg/s	260
By-pass ratio	5.6
Overall compressor pressure ratio	20.0
TIT, K	1450
At maximum cruise power (H=8000m, Mfl=0.75, ISA):
Thrust, kg(f)	1600
Specific fuel consumption, kg/kg(f)-h	0.620
Overall dimensions, mm:	3469x1541x1711
Dry mass, kg	110

The world's most powerful helicopter engineThis turboshaft engine was designed for the Mi-26 twin-engined transport helicopter. Both the engine and the helicopter are by an enormous margin the most powerful and most capable in the world. The engine's derivation from the D-36 "enabled production to be achieved quite rapidly". Bench testing started in 1977, and series production at the Motor Sich plant began in 1982. According to Mil, by 1999 a total of 280 Mi-26 helicopters had flown, though in 2001 Ivchenko-'Progress' gave the total number of D-136 engines in service as only 470. In 2001, writing as if it was one of his engines, Vyacheslav Boguslayev of Motor Sich gave the number produced as "about 500".

The engine is listed by Motor Sich as a past rather than current programme, although small numbers of Mi-26 helicopters continue to be exported, the most recent (2006-7) being three Mi-26T multirole transports for Venezuela.The D-136 is composed of 10 modules, each of which (except for the main module) can be removed and replaced without disturbing neighbouring modules on an installed engine. Five of the gas-generator modules are identical with those of the D-36.