ENGINE INSTALLATION AND MOUNTS
The engines are installed in separated fireproof compartments on the upper
deck.
The engines are installed with their output shaft facing forward to drive the
MGB directly.
Exhaust gases are therefore routed aft of the engine air intakes via exhaust
ducts installed between the two engines.
Each engine is attached to the helicopter airframe by means of two engine
mounts. Each engine mount consists of a link to connect the inboard or the
outboard engine attachment point to a bracket on the structure.
The engine mounts (located in the rear part of the engine) have the function
to absorb shear loads in both vertical and lateral direction, thus allowing for
engine thermal expansion.
A third attachment point for the engine is provided by the torque tube and
crosshead device that connect the engine output section to the input module
of the MGB.
The torque tube and crosshead device distribute and absorbe the axial and
radial load produced by engine drive shafts.