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Torpedo Tube, Surface Vessel, Mark 32 MOD 9
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Low temperature operation, loaded condition



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MIL-T-82571A(OS)
3.4.17 Breakaway plug puller mechanism.  The lever of the breakaway plug
puller mechanism shall be capable of being latched and unlatched by hand.
The mechanism shall permit dry firings when in the latched position and shall
remain in the latched position at the completion of these firings.
3.4.18 Muzzle door operation.  With 95 plus or minus 5 psig supplied to
the pneumatic circuit, and the doors operated manually and electrically,
door closure shall be indicated by inability of a 0.030 feeler gage to pene-
trate the joint between the door face and the barrel ends.  The full-open
position of the door shall occur at 105 plus or minus 5 degrees.  Door oper-
ation of both barrels must be checked.
3.4.19 Lighting interlock.  The lighting interlock circuit consists of
two muzzle door interlocks, two breechward access cover interlocks, and
two breech mechanism locking handle interlocks.  Should any sequence of oper-
ation allow light leakage from the tube, the interior deck house lighting
will shut off.
Continuity shall be in accordance with
3.4.20 Electrical continuity.
NAVORD Drawing 1448418.
3.4.21 Lanyard retainer.  The spring-loaded retainer shall be capable of
accepting and securing a lanyard wire of 0.069 minimum diameter.
3.4.22 Dry firing.  Each barrel of the torpedo tube assembly shall be
capable of being fired without a torpedo by electrical and mechanical means,
without damage, malfunction, or hindrance to subsequent firings with a torpedo.
3.4.23 Torpedo exit velocities.  The exit velocities of each type of
torpedo for various air flask pressures shall be in accordance with Schedule
II, as specified in 4.4.5.23.
3.5 Environmental
requirements
3.5.1 Vibration
3.5.1.1 Vibration, nonoperating.  The torpedo tube assembly, less packing
or packaging, shall be capable of meeting all quality conformance tests after
being subjected to vibration tests of MIL-STD-167 for Type I vibrations in
the three mutually perpendicular axes.
3.5.1.2 Vibration, standby condition.  The torpedo tube assembly, loaded
with dummy torpedoes and containing fully pressurized breech assemblies, shall
be capable of meeting all quality conformance tests during and after being
subjected to the vibration tests of MIL-STD-167 for Type I vibration in the
three mutually perpendicular axes.
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