There are eight Internal Torpedo Tubes mounted
horizontally. Each Torpedo Tube is shut by means of a front
door. A hull fairing shutter is connected to the front door so
as to maintain the Hydrodynamic Shape of the submarine.
View towards the eight forward torpedo tubes
The large discs are the Inner Doors of the torpedo tubes.
The big brass tubes attached to the inner doors are Pneumatic
Rams, to launch the torpedoes out of the tubes.
The red devices between the tubes are Interlocks which
prevent an outer door from opening when an inner door is open,
and vice versa.
The many small green 'things' between the tubes are Grease
Nipples which feed the grease to the operating rams and hinges
of the lateral and forward torpedo tubes.
The grey cables going into each tube below each brass
pneumatic ram send information on course offset and running
depth to the torpedoes before firing, and also keep the torpedo
batteries fully charged.
Getting a torpedo on board was not a trivial activity
Loading a torpedo on board SAS Assegaai's sister
submarine, the SAS Emily Hobhouse for an exercise firing,
1 March 1997.
Preparing to load E15 Combat Heavy weight torpedo's on
SAS Assegaai's sister submarine, the SAS Emily
Hobhouse for an exercise firing on MS Kanutka.
Pre Load Torpedo Checks. Verify correct pistol fits into
warhead. — with Michael White.
Submarine Base Workshop Weapons Department rigging up
external loading equipment. — with Gary Solomon and
Aligning inner and outer cradles. — with Gary Solomon.
E15 Torpedo propellers
The E15 torpedo weighed 1650kg and carried 300kg of high
Designed in 1955, the E15 torpedo had a range of 12,000
meters and travelled underwater at 25 knots (46km/hour)
on power supplied by Nickel-Cadmium batteries.
The torpedo was 5.9 meters in length.
Lifting Band off.
Check all OK for first torpedo.
First torpedo enters through torpedo hatch.
Torpedo is slowly lowered below along the guiding
First torpedo entering through the torpedo hatch. — with
Torpedo on main cradle. — with Guido Werner Perold.
Lower torpedo to deck.
Pins and rings out hoist main cradle. — with Chris
Grove, David Flounders, Andrew Bryan Ramsay, Dirk Visser
and Gary Kretschmer.
Remove PR (Pneumatic Ram) — with Colin Cloete.
Traversing Main Cradle. — with Guido Werner Perold
Putting Bicycle and Tie Rods on.
Torpedo in tube, connect umbilical. — with Shaun Dempsy
(Images courtesy of:
The section at frame 110 shows the forward diving plane ram and
Length 7.562 m
Inside diameter 600mm
Details of the torpedo launching ram
Trim There are three requirements for a submarine
to ne trim:
Its weight must
be equal to the upward thrust, that is , the submarine
must have neutral buoyancy