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WW2 Submarine War

Friday Aug 8, 2008

The Japanese attack on Pearl Harbor launched the greatest naval war of all time. The attack was brilliantly timed and executed, but fatally flawed. Many say that failing to catch the U.S. carriers in port was the biggest error. Possibly so. In any case, the carriers weren’t there to be attacked.

The U.S. Pacific ww2 submarine force was there however, and it was totally ignored. Hundreds of Japanese torpedo-plane pilots flew right over—and sometimes next to—the submarine base and it’s munitions dump on neighboring Kuaha. In doing so, they missed a golden opportunity to destroy the one arm of the U.S. Navy capable of attacking the weakest link in the Empire’s chain: shipping.

Japan was an overpopulated island nation totally dependent on imports for everything from rice to oil. The large surface ships either damaged or destroyed at Pearl Harbor were impressive and powerful, but it would have been many months, or even years, before the ships could operate deep into Japanese controlled areas of the Pacific. However on the afternoon of the attack on Pearl Harbor, December 7, 1941, the order was given: Execute unrestricted air and submarine warfare against Japan. The subs, with their supplies and harbor facilities spared in the attack, were the only forces capable of responding immediately, and respond they did—slowly at first, but with gathering speed.

The year 1942 was a tentative one for the submarine forces. Outdated tactics had to be discarded, unaggressive skippers replaced, exploratory reconnaissance conducted, and new tactics developed. Only 139 ships were sunk by submarines in 1942, but the foundation was laid. With many of the tactical problems behind them, the U.S. submarine forces moved into 1943 with but one major problem: faulty torpedoes.

The year 1943 saw increasing numbers of successful patrols, most notably those of Commander Dudley “Mush” Morton and the USS Wahoo, whose outstanding patrols are described in detail in this book. His aggressive attacks gave the entire corps a lift just when they needed it.

Torpedo problems remained, highlighted by the experience of the USS Tinosa. On one occasion, the Tinosa intercepted and attacked a large tanker. Four torpedoes were fired, and although several appeared to hit the ship, only minor damage resulted. The tanker was stopped but not ready to sink. The submarine’s captain, Commander Daspit, had a sitting duck and so moved in for the kill, conning the boat to a perfect firing position 875 yards away.

He fired nine torpedoes, one after another. All hit. All were duds. In all 15 shots were fired at the tanker; 13 hit their target, but after the attack, the ship was in no danger of sinking. The captain held onto his last torpedo and headed for home. A similar incident happened to the Wahoo.

Testing showed that the better the setup, the more likely it was that the torpedo would e a dud! The problem was the firing pin: If the torpedo struck the target at a perfect 90-degree angle, the firing pin would almost always shear off and the torpedo would fail to explode. Even with this serious torpedo problem, the 1943 total went up to 307 ships sunk.

The year 1944 would see the virtual destruction of the Japanese merchant fleet. By the end of the first half of 1944, the war in the Pacific was no longer in doubt. Three of the five Japanese aircraft carriers remaining at the beginning of the year were lying on the bottom—two of them downed by submarines. The “back” of the fleet was finally broken.

With the Japanese fleet severely depleted, the submarines turned their attention to the tankers carrying fuel oil for the fleet and aircraft. One tanker after another went to the bottom. Fuel became so critical that training missions for new pilots were severely cut, and as a result, the “green” Japanese pilots were easy pickings for the now-veteran U.S. naval aviators.

The USS Tang, under the command of Dick O’Kane, had her legendary run in 1944 (her entire career is set down in Chapters 38-41, so you can trace her path and try to equal her record). With properly running torpedoes and many new boats in service, submarines sank 548 ships in 1944, effectively isolating Japan from the resources they needed to continue the war.

The year 1945 was a year of mopping up; still, one more major ww2 submarine offensive was needed to convince the Japanese leaders to give up the fight. Ships were being sunk faster than they could be replaced, and the pickings were getting slim. United States submarines hadn’t ventured back in to the Sea of Japan since the Wahoo was lost there in 1943, but with new mine-detecting devices it was now time to reenter “Hirohito’s Lake” and avenge the loss of the Wahoo.

Admiral Lockwood, COMSUBPAC, put together and ordered “Operation Barney.” Nine fleet subs—the Sea Dog, Crevalle, Spadefish, Tunny, Skate, Bonefish, Flyingfish, Bowfin, and Tinosa—ventured into the Sea of Japan to show the Emperor that the U.S. had the capability of cutting him off from the mainland completely. The operation was a resounding success with 28 merchant ships and assorted others sunk, but unfortunately, the Bonefish didn’t return. Going down with all hands, she was the last Pacific sub lost in the war.

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Did the German or Japanese submarines ever operate very close to USA during WW2?

Wednesday Sep 17, 2008


Yes, German submarines did and they were responsible for a number of ship sinkings off the eastern coast, in places like Georgia and the Carolina's.

In addition, Japanese submarines were rare but did make appearances off the coast of California, sinking a few ships and also shelling Santa Barbara and Santa Monica.


Where any submarines belonging to the British Armed Forces kept in the sea around Chios island during WW2?

Monday Sep 15, 2008


British subs where in the Med all through WW2.


How many total submarines did Germany build during WW2?

Saturday Sep 13, 2008


1008 U boats were built and made at least one cruise during the Second Battle of the North Atlantic, 1939-45; 775 were sunk; 600 by the Royal Navy and the rest by the US………..and one by the Free Polish Navy!


Did America maintain a powerful fleet of submarines compared to Germany during WW2?

Thursday Sep 11, 2008


The American Submarine fleet, dubbed the Silent Service, was almost single-handedly responsible for the destruction of the japanese merchant fleet, sinking 1152 ships and cutting off the strategically vital oil supplies from Indonesia. I don't think that US boats were technically superior to the German U-boats. There were serious problems early in the war with the magnetic fuses and depth settings on the US torpedoes. The torpedoes would run too deep. The high command demanded a setting of twenty feet, and the would run at sixty feet. The only submarine captains who got kills int he early part of the war were the ones who disobeyed orders and set thier torpedoes to run on the surface.


Yellow Submarine-Beatles

Tuesday Sep 9, 2008

Just something I put together from the film.

Duration : 0:6:15

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Sinking Subs - 45 min documentary

Tuesday Sep 9, 2008

1 May 1999
In a new major investigation, one of the Australian Navy’s most respected former officers says the new Collins class submarines from Swedish manufacturer Kockums are potentially unsafe.

Duration : 0:10:8

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Lucy in the Sky with Diamonds

Sunday Sep 7, 2008

from the movie Yellow Submarine

Duration : 0:3:26

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Yellow Submarine

Sunday Sep 7, 2008

Another video using pictures from Microsoft Paint

Duration : 0:2:38

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Russian Submarine

Sunday Sep 7, 2008

Russian nuclear submarines in training start-up of ballistic missiles in the Arctic Ocean. NATO apparently derived the name ‘Typhoon’ from a 1974 speech by Leonid Brezhnev which mentioned a new SSBN called the “Tayfun”. In fact, the Russian name for the class is “Akula” — “Shark”. During the Cold War the Typhoon submarines prowled the waters of the North Atlantic. The Typhoon is the world’s largest submarine and was one of the most feared weapons of the Cold War. Each submarine is capable of carrying twenty long-range ballistic missiles RSM-52 ( SS-N-20 ballistic missiles, now SS-N-28 new Russian ballistic missiles) with up to 200 nuclear warheads that were once aimed at the United States.
The design of the Typhoon submarine is multi-hulled and bears resemblance to a catamaran. The submarine has two separate pressure hulls with a diameter of 7.2 m each, five inner habitable hulls and 19 compartments. The pressure hulls are arranged parallel to each other and symmetrical to a centerplane. The missile compartment is arranged in the upper part of the bow between the pressure hulls. Both hulls and all compartments are connected by transitions. The pressure hulls, the centerplane and the torpedo compartment are made of titanium and the outer light hull is made of steel. A protected module, comprising the main control room and electronic equipment compartment, is arranged behind the missile silos above the main hulls in a centerplane under the guard of retractable devices.The submarine’s design includes features to enable it to both travel under ice and for ice-breaking. It has an advanced stern fin with horizontal hydroplane fitted after the screws. The nose horizontal hydroplanes are in the bow section and are retractable into the hull. The retractable systems include two periscopes (one for the commander and one for general use), radio sextant, radar, radio communications, navigation and direction-finder masts. They are housed within the sail guard. The sail and sail guard have a reinforced rounded cover for ice-breaking.
This fastest weapon for 2-3 minute Apocalypse for any military opponent.
God Bless never do it…

Duration : 0:3:31

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