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COMPLEMENTARY FLIGHT
MANUAL
.SECTION
7.4
POWER PLANT
1
DESCRIPTION
1.1
Installation
The
engine
is
mounted
at
the
top
of the
body
structure
in
a
fireproof
bay.
It
is
installed
aft
of
the
main
gearbox,
to
which
it
is
connected
by
a shaft
mounted
between
two
flexible
couplings.
1.2
Brief
DescriDtion
of
the
EnQine
.
The
engine
is
a
free
power
turbine
design.
"
The
engine
consists
of
five
separate
interchangeable
modules:
--Axial
C~ressor
Module
(with
bleed
valve)
Mounted
at
the
forward
end
of
the
engine,
c~rising
a single-stage
axial
c~res50r
followed
by
a guide
vane.
-Gas
Generator
Module
Centrally
located,
comprises:
.a
centrifugal
cOl1¥>ressor
.a
cOlltJustion
chanber
.generator
turbine
drying
the
c~ressors.
-Free
Turbine
Module
At
the
aft
end,
consisting
of
a
turbine
wheel
and shaft.
-Reduction
Gear
Module
Reduces
the
free
turbine
speed
from
39158
r.p.m.
to
6000
r.p.m.
-Output
Shaft
Module
.
Transmits
engine
power
to
the
main
gearbox
and
accessory
drive
couplings.
.
350 B3
7.4
97-40
Page
1
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