To: RotorPilot
Nope. This is not the H92... it has three engines and one of them has an "auxiliary gear box" in between.
The left engine (number 1) is tied to the auxiliary gear box and does not directly turn the main rotor.
The Auxiliary gearbox is not mounted between the No. 1 engine and anything else. The Aux gearbox is mounted in front of the main transmission and on the ground is powered by No. 1 engine. There are two drive shifts that power the Aux gearbox and when No. 1 is driving on the ground the second shaft is isolated by a freewheeling unit preventing the main transmission from being back driven. As I said there must be a clutch that allows No.1 to run without powering the main rotor.
