Main Deck Aft Perisicope shears and antennas Main deck forward Spacer for image fit
Conning tower Spacer for image fit
Forward end of submarine Spacer for image fit
After end of submarine. Spacer for image fit
Center of submarine Spacer for image fit
Bottom of submarine Spacer for image fit
Main Deck Aft Perisicope shears and antennas Main Deck Forward Conning Tower After Torpedo Room Maneuvering Room Motor Room After Engine Room After Engine Room Lower Flat Forward Engine Room Forward Engine Room Lower Flat After Battery Compartment (Crew Berthing) Crew's Mess and the Galley Radio Room Control Room Pump Room Forward Battery (Officer's Country) Forward Torpedo Room
Photo taken from VR.

Submarines, including Pampanito played a critical and decisive role in World War II. They sank over 1,200 Japanese merchant ships and warships -- more than half of all Imperial Japanese shipping destroyed in the war. Japan, as true with most nations, depended on their merchant marine to supply their commerce and military, they relied on their Navy to protect those supply lines. When the rate of sinkings outpaced Imperial Japan's ability to build new ships, the outcome of the war was assured.

But this success was expensive. Fifty-two submarines never returned home. Most disappeared without a trace, their fate unknown. All but a few of their crews lie forever entombed on the ocean floor. More than 3,500 men of the "Silent Service" gave their lives to the cause of victory. Pampanito stands as one of the few proud memorials to these men still "on eternal patrol." On behalf of the Pampanito crew, thank you for joining us today.

Above Deck Features

Periscope Shears: Housing and support for both periscopes. The after scope is the longer, thinner, attack scope and features an optical range finder for determining the range of a target. The forward scope is the general observation scope and features an ST radar window located below the optical opening. The ST was used for very accurate target range calculations.

Radar Masts: The small radar dish antenna is the SJ (a surface search device) and the large dish is the SV (an air search device). The SV replaced the original SD radar and was installed in 1945. The SV is mounted on an extendable mast so that it could be operated when running submerged at periscope depth. Both operated at approximately 3,000 megahertz.

Lookout Platforms: The lookouts stood on the platforms in between the periscope shears. The curved railing mounted horizontally at the top of the platform is chest high. The vertical railing was to allow the lookout to swing below when the diving alarm was sounded.

Gun Decks - Fore And Aft: Anti-aircraft guns forward and aft. Both weapons could operate at semi or full automatic rates of fire. Although these guns were designed primarily as anti-aircraft weapons, they were also used on surface targets.

Target Bearing Transmitters: These were used to indicate the angle, or bearing, of a target from the submarine, and to relay that information to the torpedo data computer in the conning tower to establish the gyro angles for the torpedo run. There are two TBTs, one on the bridge and one mounted on a stand by the 40mm gun on the after gun deck.

RDF Loop And VHF Antenna: The doughnut-shaped antenna between the periscope masts determined the direction of a radio signal and could receive low frequency radio transmissions at shallow depths. The VHF antenna is the stub antenna on the forward periscope mast.

Pressure Proof Lockers: The large lockers mounted on the aft end of the conning tower were used to store a quick supply of shells for the deck gun. They kept the shells dry and protected them from sea pressure during a dive. Three of the smaller lockers contained .50 caliber machine guns which were mounted on the larger diameter deck stanchions. Other lockers contained ammunition for the .50 caliber, 20mm, and 40mm machine guns. Another pressure proof locker contained a spare barrel for a 40mm gun.

Searchlight: The 12-inch diameter searchlight has a 1,000-watt light that was used for observation, and also had hand operated shutters that allowed it to be used for Morse code ship-to-ship communications.

Blastphones: Six hydrophones that are used to indicate the direction of a depth charge explosion, enabling evasive measures to be taken, are mounted on the ship. They are mounted fore and aft, port and starboard, and at the keel and top of the periscope shears. The Depth Charge Direction Indicator was in the conning tower and consisted of a series of lights that would be activated by a depth charge explosion. The lights that went on would indicate the direction of the explosion which otherwise was very difficult to determine. The unit was then reset for the next explosion.

Broom: When a crew returned from a successful war patrol and had "swept the seas clear of the enemy," they would attach a broom to the periscopes as they entered port.

Pericope icon used to represent the Fleet Submarine Online books Pericope icon used to represent the Fleet Submarine Online books For more technical information, see:
The Fleet Submarine Online training manuals.
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