"Under normal, two engine operations, each engine delivers its power to its corresponding proprotor through the proprotor gearboxes. Only a small amount of power (511 hp max) is transferred down the pylon mounted drive shaft, through the tilt-axis gearboxes and down the interconnecting drive shaft to the mid-wing gearbox. The mid-wing gearbox contains the auxiliary power unit (APU), the constant frequency generator and the variable frequency generator. The mid-wing gearbox transmits power between the left and right interconnecting drive shafts without changing speed or direction of rotation. (During single engine operation, power is distributed from the remaining engine to both proprotors through the interconnecting drive shaft.)"
Oh, this answers the what are they called question = "proprotors"
- GY
Last edited by GarageYears; 4th Oct 2012 at 17:08.