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Wednesday, June 12, 2024

A Tragic Anniversary: The Loss of USS Scorpion (SSN 589)

By Zach Smyers and Mark Freeman
HRNM Staff

In May 1968, the nuclear attack submarine USS Scorpion (SSN 589) was 350 feet below the surface of the Mediterranean Sea traveling at a speed of 15 knots. Commander Francis A. Slattery, commanding officer of Scorpion, sent a message to COMSUBLANT (Commander, Submarine Force Atlantic). In the message, Slattery said that Scorpion was closing in on a Soviet submarine and research group “to begin surveillance of the Soviets.” This would be the last message ever sent by Scorpion.

Commander Francis Slattery, CO of the Scorpion (NHHC)

Ten years earlier, in August 1958, the keel was laid for Scorpion, which was built at the Electric Boat Division, General Dynamics Corporation, Groton, Connecticut. Scorpion was the second submarine to be built as part of the U.S. Navy’s Skipjack-class. The Skipjacks had the latest in technology in terms of armament, sonar, and nuclear propulsion. Capable of speeds in excess of 30 knots while submerged, Scorpion would be ideal for covert observations of Soviet naval activity during the busy years of the Cold War.

Launching of the Scorpion (Navsource.org)

Commissioned on July 29, 1960, USS Scorpion (SSN 589) would be the sixth U.S. Navy vessel of that name. The previous USS Scorpion (SS 278) was a Gato-class diesel submarine that served during World War II and was lost with all hands in 1944. First assigned to Submarine Squadron 6, Division 62 out of New London, Connecticut, Scorpion’s first deployment was participating in exercises in Europe working with units from the U.S. Navy’s Sixth Fleet and other NATO allies. In September 1961, it changed homeports, moving to Norfolk, Virginia, where Scorpion operated for the rest of its short career.

Sailors disembark from USS Scorpion in Norfolk (NavSource.org)

In February 1967, Scorpion went to Norfolk Naval Shipyard for a scheduled overhaul. At the time, the Navy required a 36-month overhaul period to determine that the submarine maintained all safety standards, including watertight integrity of the hull. However, during Scorpion’s time at Norfolk Naval Shipyard, the 36-month period was reduced to one year, and Scorpion received only emergency repairs in order to return to sea faster.

On February 15, 1968, Scorpion left Norfolk for what would be its final deployment. Working with the Sixth Fleet, Scorpion headed west, making the return trip for home in May. However, on May 20, 1968, Vice Admiral Arnold Schade issued orders for Scorpion to make its way toward the Canary Islands.[i] Scorpion’s tasking was to observe and track Soviet warships operating in the area, which included an Echo II Class submarine, a submarine, rescue vessel, and two hydrographic survey ships. A Soviet guided-missile destroyer and an oiler joined the group three days later. On May 21, 1968, Scorpion was 250 miles south of the Azores, and was making its way back to Norfolk with an estimated time of arrival of 1pm on May 27. That day, Scorpion was reported as overdue for returning to Norfolk. Scorpion had failed to respond to a series of classified message traffic. The Navy made multiple attempts to communicate with Scorpion, but the crew never responded. Scorpion was declared missing, and the U.S. Navy began searching for the lost sub using aircraft, ships, submarines, and aircraft from the Coast Guard and U.S. Air Force. The size of the search area was 2,100 miles, which is almost equivalent to all seven cities that make up the region referred to as Hampton Roads.

On June 5, 1968, the U.S. Navy officially declared Scorpion lost and the crew dead. The Navy established a formal Court of Inquiry regarding the loss of Scorpion. The court convened from June 1968 through most of July 1968. During this time, the court learned that in December 1967, Scorpion did have an unarmed MK-37 training torpedo start up accidentally while still inside the tube. During this particular incident, the crew was able to jettison the torpedo. The court considered that the activation of the torpedo’s battery while the torpedo was still in the tube could have sunk the Scorpion. On July 25, 1968, the court reached the conclusion that there was no proof of the exact cause of the boat’s loss.

The last known picture of Scorpion (NHHC)

In October 1968, the oceanographic research ship Mizar (T AGOR 11) located Scorpion. Sections of its hull were found 400 miles southwest of the Azores in water deeper than 10,000 feet. Pictures and data were collected from the wreck site, but the question remained: what caused the submarine to sink? In 1969, the deep surveillance vessel Trieste II made nine dives surveying the wreckage of Scorpion. These dives confirmed that the Scorpion had broken into three separate sections.

Map showing location of USS Scorpion's wreck (Wikimedia)

While we may never know the precise reason Scorpion sank, there are several theories about this event. In the 1998 issue of Proceedings, author Mark A. Bradley concluded that Scorpion sank due to lack of necessary safety improvements. In the 1998 book Blind Man’s Bluff: The Untold Story of American Submarine Espionage, the authors conclude that the battery used to power the MK-37 torpedo aboard Scorpion could have caught on fire, which in turn would cause the torpedo’s warhead section to explode and sink the submarine. Another popular theory is that Scorpion was attacked and sunk by the Russian navy. While this theory may seem far-fetched, there is some evidence to support it in a letter Scorpion crewmember MMC Robert Bryan wrote to his son, Samual Bryan, about the Scorpion’s final mission. Bryan wrote, “Russians followed us with guns down the entire time.” Regardless of the cause, Scorpion went down with all of its crew and will forever remain on eternal patrol.

This year marks the 56th anniversary of the loss of USS Scorpion (SSN 589). To this day, any submarine entering Naval Station Norfolk will pause to render honors to Scorpion and the boat’s fallen Sailors. Current submariners do this by sounding the ship’s whistle as submarines pull into port from a long deployment. It is a somber yet respectful way to keep the memory of that crew alive. Along with the tribute from current active submarine Sailors, there are several monuments throughout the country commemorating the loss of USS Scorpion, one of which is pictured below. We may never know with total certainty why Scorpion sank. We should, however, stop to remember the crew’s sacrifice over fifty years later.

USS Scorpion monument in Newport News, VA (hmdb.org)








[i] The Admiral’s orders for Scorpion remain classified to this day.

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