The five views on this chart show the torpedo tube in practically all its phases, from the standpoint of the operating mechanisms. At the upper left is a bird's-eye view looking down on the breech end of the tube. Immediately below is a view of the outboard side of the tube. At the right is a view showing the breech door and the mechanisms centering around it. Below is a view of the breech end of the inboard side. Across the bottom is a full length view of the tube, showing the more recent change to power operation of the muzzle door.

This chart is so arranged that it will prove a source of ready reference for locating any of the mechanisms by checking the key numbers with the list of parts and mechanisms at the lower right. The chart can be allowed to remain opened out while studying any of the pages in this manual. A careful study of this chart, and constant reference to it while studying the following pages, should enable the student of torpedo tube operation to familiarize himself with the various parts and mechanisms as well as their relative positions on the tube.

Torpedo tube shown from above.

Above is a birds-eye view, looking at the breech end of the torpedo tube, and showing the operating mechanisms as they would appear looking down from above.

Torpedo tube shown outboard side.
Outboard side of the tube.

Torpedo tube breech door.
The breech door is the loading end of the Torpedo tube. Here it is shown with its related mechanisms, and the other operating mechanisms surrounding it


The view at the right shows the breech end of the inboard side of the torpedo tube, the section of the tube around which the operating mechanisms are centered. Here are seen the interlocking levers, the hand firing key, also the levers for operating the three torpedo setting mechanisms, with other parts of the operating mechanisms.

Torpedo tube shown from inboard side, breech door open.


While the other views on this chart show the manual operation of the muzzle door, the view below shows the recent changes for mechanical operation of the muzzle door. The parts keyed in this view are those directly related to power operation; other parts or mechanisms will readily be recognized from the other views.


1 Lead to stop valve from impulse tank.
2 Poppet valve body.
3 Firing valve filling funnel.
4 Impulse stop valve body.
5 Stop valve hand wheel.
6 Muzzle door operating handle.
7 Drain valve interlock lever.
8 Electric firing solenoid.
9 Interlock sleeve.
10 Stop rod spring.
11 Breech blow and vent pipe.
12 Depth setting indicator.
13 Speed setting indicator.
14 Gyro setting tube unit.
15 Tripping latch housing.
16 Muzzle blow and vent pipe.
17 Depth setting housing.
18 Stop valve hand wheel.
19 Breech door locking ring.
20 Breech door hinge bracket.
21 Firing valve.
22 Stop valve.
23 Lead from impulse air flask to stop valve.
24 Poppet valve.
25 Poppet valve operating unit.
26 Speed setting spindle housing.
27 Stop bolt housing.
28 Stop bolt housing.
29 Muzzle door operating shaft.
30 Muzzle blow and vent pipe.
31 Breech door locking ring operating handle.
32 Drain valve lever.
33 Drain valve.
34 Breech drain.
35 Emergency stop valve.
36 Tripping latch adjusting link.
37 Poppet valve discharge piping.
38 Roller trip housing.
39 Muzzle drain.
40 Muzzle vent.
41 Tripping latch cam.
42 Tripping latch arm.
43 Firing valve filling funnel.
44 Breech door locking ring.
45 Water gage, upper section.
46 Eye on locking ring for attaching pulley to load torpedo.
47 Muzzle door operating shaft.
48 Indicator showing opening and closing of muzzle door.
49 Breech door interlock bolt.
50 Breech and muzzle door interlock lever.
51 Pinion gear and shaft for rotating breech door locking ring.
52 Tail stop adjusting wheel.
53 Plug for testing tube.
54 Eye for attaching pulley.
55 Water gage, lower section.
56 Pressure gage.
57 Breech door.
58 Torpedo tail stop.
59 Breech bracket.
60 Breech and muzzle door interlock lever.
61 Drain valve interlock lever.
61 Firing interlock lever.
63 Electric firing solenoid.
64 Interlock sleeve.
65 Poppet valve indicator.
66 Gyro setting spindle levers.
67 Poppet valve.
68 Depth setting levers.
69 Speed setting wheel.
70 Speed setting spindle housing.
71 Roller bracket (one of four).
72 Stop cylinder and pilot valve.
73 Hand firing key.
74 Stop rod spring.
75 Gyro spindle indicator switch.
76 Gyro setting spindle housing.
77 Control handle for hydraulic operation of muzzle door.
78 Guard over hand firing key.
79 Control valve for hydraulic operation of muzzle door.
80 Interlock sleeve.
81 Bulkhead mounting ring.
82 Stop rod.
83 Bulkhead mounting ring.
84 Bulkhead mounting ring.
85 Shaft extension for opening and closing muzzle door by hand.
86 Lower bracket for interlock sleeve operating gear.
87 Interlock chain and adjusters.
88 Spur gear which operates jack nut gear to move shaft for opening and closing power operated muzzle door by hand.
89 Power cylinder.
90 Muzzle door operating shaft.
91 Muzzle door operating shaft guide cylinder.
92 Muzzle door connecting rod.
93 Muzzle door hinge bracket.
94 Muzzle door operating crank.
95 Muzzle door arm.
96 Connection for shutter arm.
97 Connection for shutter arm.
Chapter 2
Chapter 2
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Chapter 3

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Version 1.10, 22 Oct 04