Helicopter transmission systems

摘要: A helicopter transmission system is disclosed in which drive from three engines transmitted to two output channels each of divided by dividing means pinions meshed with a common combining gear rotationally fixed sustaining rotor shaft. Balancing are provided balance the torque respective pairs and, described embodiment, balancing comprise plurality meshing spur gears arranged one drivingly connected and further respectively channels. Conveniently, provides power take off an anti