The establishment of the Aviation Design Bureau, pilot production and obtaining a license in 1998 for the right to develop aviation engineering all contributed to the expansion of Krasny Octiabr’s capabilities in mastering new brands of products including completion of the entire cycle of works, from outline designing to full-scale production.

The development of helicopter transmissions, aircraft auxiliary power units, industrial gear drives and reduction gears as well as process production preparation are performed with the use of a 3-tier CAD/CAM system providing complete automation of the designing/production process.

VR-38 main gearbox  for Mi-38 helicopter

Take-off mode power produced by two engines PW-127Т/S or ТВ7-117В is 2 × 2500 h.p. (modular design ensures unification of both versions of main gearbox VR-38 by 85 %).

Program status:

·         Research and development works with further bench life cycle tests.

·         Performance of flight tests at MIL Moscow Helicopter Plant as part of Mi-38 helicopter.

·         Manufacturing of new specimens of main gearbox.
 

VR-10 main gearbox and tail transmission  for Aktai light-weight helicopter

The takeoff power of 270 h.p. is ensured by a VAZ-4265 engine. The main gearbox scheme is planetary, three-stage.
R&D status:

·         The 1st set has been handed over to Kazan Helicopters for ground tests as a part of the helicopter.

·         A prototype batch of the main gearbox and tail transmission is being manufactured.

VR-226N gearbox  for Ka-226T coaxial-scheme helicopters

The power of 2х500 h.p. transmitted in the take-off mode is ensured by two Arrius-2G1 engines. Multi-flow scheme, modular principle, detachable shaft of the upper rotor.

Program status:

·         A version of gearbox with reduced carrier-shafts speed, increased torque and power has been developed and introduced into production.

·         Research and development works with further life cycle tests.        

·         Performance of flight tests at Kamov Company as part of Ka-226T helicopter.

·         Manufacturing of new production batch.

Upgrading of the GTDE-117(-1) gas-turbine engine-power unit in order to improve start-up at high values of ambient temperature and ensure a high-altitude start-up of AL-31, RD-33 cruise engines in all design versions (the altitude of aviation engineering base airfields is up to 3.5 km above sea level) as well as increase of power by about 30% when operating as a APU (auxiliary power unit) (the power unit mode at the pre-flight aircraft preparation).

It is completely interchangeable with the basic version of GTDE-117(-1). A high degree of structural unification allows the above-mentioned upgrading to be performed during
GTDE-117(-1) repairs.
Program status:
·         A range of engine modifications has been developed, particularly GTDE-117-1М1 the design of which allows its starting without oxygen supply to combustion chamber.
·         Most engine modifications are now produced serially.

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