US NAVAL HISTORY

DSRV-1

MYSTIC

Rescue of USS Squalus 1939 test dive gone wrong

26 men died, 33 men saved 243 feet of water

Recovered sub with pontoons and cables Recommissioned as USS Sailfish in 1940

Sinking of USS Thresher• 1963, post-overhaul deep dive• "... minor difficulties, have positive up-angle,

attempting to blow…”All Hands Lost, 129 Men

SUBSAFE and DSSP

• 1964 Navy Ocean Engineering• SUBSAFE ensures watertight integrity and

rescuability DSSP tasked with designing a rescue vehicle

USS Scorpion Sank in 1968

NOT SUBSAFE Certified

CAUSE UNKNOWN NAVY HAS REFUSED REQUESTS TO OPEN INVESTIGATION

DSRV• Lockheed Missiles and Space Co built the

DSRV-1 for $41M.

50 feet long, 8 feet diameter, 3-spheres of hi-tensile steele with titanium frames.Top speed of 4 kts, Max depth of 5000 ft. 3D sonar, side-scan sonar, inertial navigation.Weight: 37 tons.

SUBSEA Engineering at it’s Bestvertical and horizontal thrustersrear propeller with steerable shrouddischargeable sea water ballast system mercury trim and list system for hovering and precision angling under-ice 3D mapping sonar and obstacle detection and avoidance systems cameras, lights, viewportsPyrotechnic jettison systemsmanipulator arm with claw and wire cutterpersonnel transfer skirt

SUPPORT SHIP DEPLOYMENT

C5/ANTONOV LOADOUT

MOSUB DEPLOYMENT

WEIGHT HANDLING

GETTINGUNDERWAY

"Submarines, Secrets, and Spies"PBS Airdate: January 19, 1999

http://www.pbs.org/wgbh/nova/transcripts/2602subsecrets.html

“NARRATOR: Some believed the rescue subs themselves were occasionally recruited for espionage.

__: The DSRVs, as we know, took a long time to be built; they were Cadillacs, that had every incredible bell and whistle that the navy and its contractors could come up with., and they went deep. They were able to do all kinds of stuff, and probably many things we don't know

anything about.”

Guenter Klaus Walter“I was requested to head up the electrical interconnection design.”

• “I prefer not to advertise this, but the DSRV was also used for espionage purposes. . . Espionage was one of the primary reasons we needed to get this project done”

SINKING OF KURSK

23 SUBMARINERS SURVIVED FOR SIX HOURS.ALL MEN DIED, SOME WROTE LETTERS.BOTTOM DEPTH SIMILAR TO SQUALUS SINKING.

MYSTIC AS AN ARTIFACT

CONCLUSIONMYSTIC WAS AN EXAMPLE OF QUALITY ASSURANCE AT ITS HIGHEST OPERATING LEVEL