A helicopter gearbox has been developed ( Transport )

On the basis of a planetary gearbox with a preliminary stage (patent RU No. 2677952), a helicopter gearbox with floating washers and a preliminary stage has been developed.
The developed gearbox is almost twice as light as the standard one used with similar technical characteristics:
-the weight used is about 700 kg;
-the weight of the developed 338 kg.
Weight: 338 kg. Rated torque: Hm. Gear ratio number: 110
The developed gearbox is almost twice as light as the standard one used with similar technical characteristics:
-the weight used is about 700 kg;
-the weight of the developed 338 kg.