This forum address has been redirected temporarily, for now it includes [slarti] this may be due to the forum upgrading to phbb3 or the forum being moved to our newer server. You do not need to take any action, your forum address will revert back to normal in a day or two. In the mean time please do not bookmark or publish the temporary link.
UK nuclear submarine grounded in accident
October 22, 2010 Britain's defense ministry says a nuclear-powered submarine has been involved in an accident off the coast of Scotland.
Officials confirmed the vessel involved was HMS Astute, one of Britain's fleet of submarines powered by a nuclear reactor.
The defense ministry insisted in a statement that the accident was not a nuclear incident, and that no injuries had been caused. (AP)
Grounded nuclear sub dragged free
23 Oct 2010 A nuclear-powered submarine which ran aground in shallow waters off the Isle of Skye has been refloated, the Royal Navy has said.
HMS Astute was towed free by a tug at about 1800 BST and will be taken to deep water where a survey will be carried out on its rudder.
The £1bn submarine, described as the "stealthiest" ever built in the UK, was out on sea trials.
It became stuck on a shingle bank near the Skye Bridge at about 0800 BST.
The journey back to its base at Faslane on the Clyde could take several days.
HMS Astute, built by BAE Systems in Barrow in Furness, Cumbria, is believed to have been undergoing sea trials as it is not expected to enter service until next year.
Aside from attack capabilities, it is able to sit in waters off the coast undetected, delivering the UK's special forces where needed or even listening to mobile phone conversations.
The 39,000 acoustic panels which cover its surface mask its sonar signature, meaning it can sneak up on enemy warships and submarines alike, or lurk unseen and unheard at depth.
The submarine can carry a mix of up to 38 Spearfish heavyweight torpedoes and Tomahawk Land Attack Cruise missiles, able to target enemy submarines, surface ships and land targets.
It ran aground outside the safe sea lane marked on Admiralty charts.
The channel that runs underneath the Skye Bridge has red and green buoys known as lateral markers to ensure vessels do not run aground.
HMS Astute appeared to be lying in shallow water several hundred metres beyond that safe route.
A look around the Astute's control room
The Admiralty charts show submerged rocks in the area where the submarine got into difficulty but the Navy said it was grounded on silt.
The Royal Navy said the submarine was operating under its own power after being towed free.
It said the vessel would remain overnight in deep water.
HMS Astute will be assessed on Saturday to determine whether it can return to Faslane under its own power or if it requires assistance.
A Royal Navy spokesman said: "It is a continuous process of assessment of the situation."
Scottish CND (Campaign for Nuclear Disarmament) expressed concern at the incident.
DAILY NEWS with prophetic analysis
The day the Kursk sank
August 12, 2015 - Russia remembers one of worst-ever submarine tragedies 15 years later.
The nuclear submarine Kursk sank in the Barents Sea during a maritime exercise August 12, 2000. All 118 crew members died, most under 30 years of age. The Kursk was the pride of Russia's fleet, having symbolized the power and strength of the Russian Navy. It had been in service for less than 6 years when it sank. The Kursk accident is widely regarded as one of the biggest national tragedies during Vladimir Putin's time as Russian president.
Norwegian seismic institute graphs show explosions detected from the area where the Russian nuclear submarine Kursk sank.
THEORY - A hydrogen peroxide leak in the forward torpedo room led to the detonation of a torpedo warhead, triggering the explosion of more warheads about two minutes later. There have been a number of theories about what might have caused the explosion on the sub. There are theories that the Kursk collided with an American submarine, or the vessel could have struck a mine.
Some of the crew survived the explosions. Lives could have been saved if rescue operations had begun sooner.
The wreckage of the submarine, including most of its hull but except the bow, was raised from the sea bed over a year after the tragedy. Potentially dangerous remains of the weapon load and nuclear reactors were also lifted from the ocean floor.
The submarine was carrying 24 cruise missiles and 24 naval torpedoes, Captain was Gennady Lyachin.
Photos on link of Kursk and its crew. Very sad day.
Russian Navy gets Monomakh Nuclear sub December 19
December 10, 2014 TASS - December 19 the submarine will be officially adopted for service in the Russian Navy. The submarine is equipped with a rescue escape. Vladimir Monomakh, the third Borei-class (Project 955 ) ballistic missile nuclear submarine, has been handed over to the Russian Navy. The Borei are armed with 16 Bulava ICBMs with nuclear warheads.
3 subs x 16 nukes can annihilate the U.S. east coast.
Remember the Kursk
Note the new submarine is equipped with a rescue escape!
San Francisco, Thresher, Scorpion
I will be adding these 3 accidents later
U.S.S. Scorpion submarine mystery 1968
U.S. Scorpion submarine left Norfolk, Virginia, on February 15, 1968, for exercises in the Mediterranean. On May 21 all was well. Scorpion radioed its position about 50 miles south of the Azores. On May 22 it lay in pieces beneath 10,000 feet of water, each section resting in the crater of its own impact. All 99 men aboard were lost. Cause unknown.
The Navy didn’t suspect trouble until May 27, when the submarine failed to return to Norfolk as scheduled. A search was launched, Scorpion was officially pronounced “presumed lost” on June 5, and efforts to locate the sub continued into the fall. Scorpion was found in the North Atlantic about 400 miles southwest of the Azores at the end of October
An initial investigation concluded that the most likely cause was an accidentally released torpedo which circled back on its only possible target, Scorpion. A later investigation ruled instead that the sub’s huge battery had likely exploded. The Scorpion reports were largely declassified in 1993, but much information remains hidden from the public. Some have speculated alternate causes for the accident, including a collision with a Soviet submarine.
USS Scorpion Buried at Sea
Did U.S. and Soviet navy officials deep-six the real reason the American nuclear attack submarine Scorpion sank with 99 sailors aboard? The crisis exploded without warning across the sprawling U.S. Navy community in Norfolk, Virginia: A nuclear submarine and its crew had vanished in the Atlantic. On May 27, 1968, USS Scorpion (SSN 598) failed to return as scheduled to its home port.
Unknown to the families of the crew, the submarine’s failure to break radio silence had already sparked concern. At 3:15 p.m. the navy made it official Scorpion was missing.
USS Scorpion investigation
November 16, 2012 - Submarine veterans group calls for an investigation of the unexplained accident that sank the nuclear attack sub more than 40 years ago. The Scorpion went down May 22, 1968 in the middle of the Atlantic Ocean. The sub carried two nuclear torpedoes and a nuclear reactor. Navy denied a proposal to investigate the shipwreck.
The cause of the sub's loss remains hotly disputed, ranging from a covert Soviet attack to a torpedo self-firing into the ship to a faulty trash disposal. Evidence for a more mundane explanation comes from the sub's propeller shaft. Undersea photographs show it rests about 20 yards outside the wreck on the seafloor, about 11,220 feet underwater. Boyne suggests that rubber bearings holding the propeller shaft failed, putting stress on the coupling connecting it to the engine. The coupling's bolts failed catastrophically during a deep test dive, the theory goes, spilling water into the sub too rapidly to allow ballast maneuvers to raise the ship to the surface.
HOLY CHALLENGER BATMAN!
Reminds me of the oring failure on the space shuttle causing it to explode.
Space shuttle disasters
The Loss of USS Scorpion 1968
USS Scorpion (SSN-589) was a Skipjack-class nuclear powered submarine of the USN (United States Navy). It was declared lost on June 5, 1968. The Scorpion specialized in the development of nuclear submarine warfare tactics.
In 1966, she was deployed for special operations and entered an inland Russian sea during a "Northern Run" where it successfully filmed a Soviet missile launch through its periscope before being forced to flee by using its high speed capability. Scorpion was a fast attack submarine and had a reputation for excellence.
Wreck of USS Scorpion
The search continued and a Court of Inquiry was setup by the US navy. At the end of October, the Navy's Ocean research ship Mizar located sections of Scorpion's hull in more than 3000 meters (i.e. about 10,000 feet) deep water and about 400 miles southwest of the Azores.
The submarine was broken into two major pieces: The forward hull section, including the torpedo room and most of the operations compartment, created one huge trench on impact with the sea floor. And the aft section including the reactor compartment and engine room, created a second impact trench. The sail is detached and lies nearby in a large debris field. Much of the operations compartment had disappeared, and most of the debris was identified as coming from the operations compartment. One of Scorpion's running lights was locked in the open position as if it had been on the surface at the time of the mishap.
So what was the cause of USS Scorpion loss?
At the time of her sinking, there were 99 crewmen aboard Scorpion. The submarine contained a treasure-trove of highly sophisticated spy gear and spy manuals, two nuclear-tipped torpedoes, and a nuclear propulsion system. The best available evidence indicates that Scorpion sank in the Atlantic Ocean on May 22, 1968.
Several theories and explanations have been given as cause of the loss, but none are conclusive. Some have suggested that attack by a Soviet submarine caused Scorpion's loss. The most likely cause was the activation of a torpedo by mistake at the time of inspection. The torpedo, in a fully ready condition and without a propeller guard, then began a live run within the tube. As soon as it got released from the tube, it struck its nearest target, the Scorpion itself. Alternatively, the torpedo may have exploded in the tube due to an uncontrollable fire in the torpedo room.
However, no one till date knows the real cause. The Navy's Court of Inquiry did not reconvene after the 1969 investigation, and did not take testimony from a group of submarine designers, engineers and physicists who spent nearly a year evaluating the data gathered from the wreck of Scorpion.
U.S.S. Thresher submarine
August 12, 2015 - At 9:18 a.m. on April 10, 1963, sonar operators aboard the U.S. Navy submarine rescue ship Skylark, which was accompanying the nuclear attack submarine Thresher, heard a chilling sound “like air rushing into an air tank,” and Thresher was no more. Its deep-dive trials southeast of Cape Cod, Massachusetts, had come to a cataclysmic end and all 129 men aboard perished in 8,400 feet of water.
Five minutes prior to the implosion, Thresher had radioed that it was having minor problems. Skylark received several fragmentary, garbled messages, followed by silence. Moments later the chilling sounds of a submarine breaking apart and imploding were heard. They claim a piping joint in a sea water system in the engine room gave way. The resulting spray shorted out electronics and forced an automatic shutdown of the nuclear reactor.
When the accident occurred, Thresher was near its maximum test depth, which, though classified, was probably around 1,300 feet (396 meters). Most submarines are built to survive down to a “crush depth,” which can be 20 to 35 percent greater than their maximum test depth. However, without the reactor, the sub would not have had enough power to stop itself from sinking to the bottom. As they sank, the men aboard would have heard piping and fittings giving way. They would have listened as the ship’s hull creaked and groaned, until it finally, deafeningly gave way to massive water pressure. All lives were likely extinguished within a matter of seconds.
USS San Francisco (SSN-711)
On 8 January 2005 the U.S.S. San Francisco submarine collided with (an undersea mount? - or a Chinese sub) about 675 kilometers (364 nautical miles, 420 statute miles) southeast of Guam while operating at flank (maximum) speed at a depth of 525 feet (160 m).
The collision was so serious that the vessel was almost lost, accounts detail a desperate struggle for positive buoyancy to surface after the forward ballast tanks were ruptured. 98 crewmen were injured, and one died from head injuries. Other injuries included broken bones. San Francisco’s forward ballast tanks and her sonar dome were severely damaged, but her inner hull was not breached, and there was no damage to her nuclear reactor. She surfaced and, accompanied by USN patrol boats, cutter, barge and P-3 Orion aircraft, arrived in Guam on 10 January.
San Francisco’s captain, Commander Kevin Mooney, was reassigned to a shore unit in Guam during the investigation. The Navy found that "several critical navigational and voyage planning procedures" were not being implemented aboard San Francisco. Consequently, the Navy relieved Mooney of his command, and also issued him a letter of reprimand. He was not charged with any crime, and he was not court-martialed.
Who's to blame?
A head-on collision at 40 miles per hour is, by any standard, a bad accident. But a head-on collision in a submarine 525 feet deep in the middle of the Pacific Ocean is a disaster.
That's exactly what happened to the USS San Francisco last January, when it struck an 'undersea mountain' in one of the worst accidents in modern naval history. How does a submarine run into a mountain? And whose fault was it?
After the accident, the entire bow of the USS San Francisco, a $1 billion, fast-attack nuclear submarine, was shattered. Cmdr. Kevin Mooney said, "We took a full frontal hit, and came pretty close [to losing that submarine]."
Crashed U.S. Nuclear Submarine San Francisco
Photos show that sub was a mess! Not sinking is a MIRACLE!
Why we almost lost the Submarine USS San Francisco
April 13, 2005 By Raymond Perry
Specific details of the investigation into the collision of the USS San Francisco with a seamount in the Pacific Ocean are beginning to emerge and they reveal the incident was far more serious than we originally were led to believe.
First, the damage done by the collision was nearly fatal. The forward bulkhead of the San Francisco buckled upon impact with the submerged seamount. Some of the photos of the submarine in drydock show that the deck immediately aft of the damaged ballast tank area has “bubbled up,” indicating significant bending of the hull itself. The buckling of the forward bulkhead noted by the investigation indicates that the ship was on the brink of catastrophic flooding.
The Navy investigation determined that the routine of laying out the navigation plan for the transit to Australia was seriously deficient. Charts in use were not updated to indicate a possible hazard just 6,000 yards from the collision location, and the ship chose to pass within 12 miles of charted pinnacles.
The decision-making making onboard the San Francisco was unacceptably “slack” by Pacific Submarine Force standards. Specific examples include:
With the ship’s fathometer showing that water was shoaling over a period of time, key crewmembers took no action to verify the safety of continuing on the planned track.
No attempt was made to verify and resolve the discrepancy in measured versus charted water depth, despite the fact that some key crewmen thought that the soundings taken were incorrect since they were taken at high speed.
The chart used for daily navigation was a large-scale map with less detail. This was convenient for a long and fast voyage but conveyed a false sense of security when the ship was in fact passing through broken waters.
It appears that the ship was not using a management tool, such as conducting daily briefs of the next 24 hours of operations, to ensure that all key crewmembers had considered and discussed future hazards.
much more - very long article
I have been told in private the San Francisco sub hit a Chinese sub and I believe that
Japan new advanced subs
October 7, 2015 - Japan has offered to build Australia a larger version of its stealthy Blue Dragon submarine. The Soryu diesel-electric submarine, which could be built in Australia, would be powered by lithium ion batteries, which are smaller.
PHOTO / diagram
China to build submarines in Pakistan
China will build in Karachi 4 of 8 submarines that it is selling to Pakistan.
Construction to begin in Pakistan and China simultaneously.
NUCLEAR ATTACK on AMERICA
Visions of Duduman, Henry Gruver, AA Allen all dovetail
I consider this important, due to the Duduman vision of
America attacked by China-Japan-Russia.