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| The Williams
WR27-1 APU is used as an air producer for starting the
S3 Viking Anti Submarine Aircraft, it is also equipped
with
a 400Hz
generator.
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Serial & Identification
Plate. |
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Front view showing
from the top, generator with the air cooling inlet at
the top with the warm air exiting from the round holes
at the bottom. Then there's the air producer outlet to
its
right with the yellow cover. The holes in the center
are the air cooling inlets for the oil cooler and below
that are the oil and fuel pumps with the filter bowls
to the bottom right. The oil tank is bottom left.
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Fuel and Oil
pumps with the oil and fuel bowls nearest the camera. |
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The white box
at the bottom is the igniter exciter, the large pipe
to its bottom and right is the hydraulic starter oil
feed and on the top are the air start overflow/
spill pipes.
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Bottom right
is the oil tank with the oil cooler mounted just above
it. |
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| Bottom right is the control panel. |
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Visible on the top is the air overflow
actuator.
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The air producer outlet port.
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Overview. |
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Rear end overview.
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Control panel. |
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Overview.
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2nd stage turbine
wheel, with the thermocouple just poking through on the
bottom left. |
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Overview.
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Underside. From
the top left, oil tank, fuel and oil pumps with the
filter housings on the
right. The slit with the rotating cover is the air intake
for the air producer compressor and the the open port
below that is for the air intake for the engine itself.
The connectors shown bottom left and right are the hydraulic
starter
inlet and
outlet connectors.
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