Engine Transmission. The two engine transmis-
sions are identical assemblies. Minor rearrangement of
transmission external parts provides interchangeability
between right-- and left--hand engine transmission instal-
lations. The transmissions are mounted directly on the
engine being driven by the engine output shaft. The
transmissions provide angle of drive and RPM reduction
in torque. Torque from the engine is transmitted by the
engine transmission and engine drive shaft assembly to
the engine--combining transmission. Freewheeling is
provided in the output shaft of the engine transmissions.
This permits the drive system to overrun the engine dur-
ing failure, a sudden reduction of RPM, or autorotation.
(See Figure 3-3.J).
3-3.J. Sectional View of Engine Transmission.