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NavSource Online: Submarine Photo Archive


Contributed by Mike Smolinski
Radio Call Sign: November - Golf - Yankee - Hotel

Cavalla (SSN-684)


Sturgeon Class Attack Submarine: Laid down, 23 May 1970, at the Electric Boat Division of General Dynamics Corp., Groton, CT.; Launched, 19 February 1972; Commissioned, USS Cavalla (SSN-684), 26 January 1974; Decommissioned and struck from the Naval Register, 30 March 1998; Final Disposition, disposed of through the NPSSRP (Nuclear Powered Ship and Submarine Recycling Program) at Puget Sound Naval Shipyard, Bremerton, WA., 17 November 2000.

Specifications: Displacement, Surfaced: 3,640 t., Submerged: 4,640 t.; Length 302'; Beam 31' 8"; Draft 28' 8"; Speed, Surfaced 15 kts, Submerged 25 kts; Depth limit 1,300'; Complement 108; Armament, four 21" torpedo tubes amidships aft of bow, MK 48 Torpedoes, UUM-44A SUBROC, UGM-84A/C Harpoon, MK 57 deep water mines, MK 60 CAPTOR mines; Combat Sensors, Radar, BPS-14/15 surface search, Sonars, BQQ-5 multi-function bow mounted, BQR-7 passive in submarines with BQQ-2, BQS-12 active 7, TB-16 or TB-23 towed array, EW Systems, WLQ-4(V), WLR-4(V), WLR-9 ; Propulsion System, one S5W nuclear reactor, two steam turbines, one propeller, 15,000 shp.
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Cavalla78kCommissioning Booklet photo of the Keel laying of the Cavalla (SSN-684) 23 May 1970, at the Electric Boat Division of General Dynamics Corp., Groton, CT. Electric Boat / US Navy photo courtesy of Mike Keating.
Cavalla271kCDR DeMars at the 1972 launching of Cavalla (SSN-684), with his wife Margaret at left and ships sponsor Mrs. Melvin Price at right. USN photo courtesy Naval Historical Foundation via Bill Gonyo.
Photo added 03/13/13.
Cavalla400k The Cavalla (SSN-684) slides down the building ways at the Electric Boat Division of General Dynamics Corp., Groton, CT., 19 February 1972.USN photo courtesy of Scott Koen & ussnewyork.com.
Cavalla184kTugs give the Cavalla a helping nudge to dock after her launching on 19 October 1972. USN photo # NPC 1151269 courtesy of Scott Koen & ussnewyork.com.
Cavalla22kCommemorative postal cover marking the commissioning of the Cavalla (SSN-684), 19 February 1972. Courtesy of Jack Treutle.
Cavalla317kCommissioning Booklet photo from page 5 entitled "Heritage Of The Cavalla (SSN-684)".
Port beam photo of the Cavalla during her trials off the Atlantic coast, 1972 - 73.
US Navy photo courtesy of Mike Keating.
Cavalla405kCavalla on 18 October 1972. USN photo # NPC 11454162 courtesy of Scott Koen & ussnewyork.com.
Cavalla317kBack cover of the Commissioning Booklet photo of the Cavalla (SSN-684) during her trials off the Atlantic coast, 1972 - 73. US Navy photo courtesy of Mike Keating.
Cavalla2.02kEighteen page Welcome Aboard the Cavalla PDF.USN photo courtesy of Scott Koen & ussnewyork.com.
Cavalla849kCavalla (SSN-684) during her trials off the Atlantic coast, 1973. If you look closely, at the bow wave, you can see the pointy tail of the big "Pimple" on her nose. It housed the AN/BQH4, sonar transducer, if I remember correctly. She was the only 637 to have it. It was removed sometime after 1975.US Navy photo & text courtesy of Mike Keating.
Cavalla76kAdmiral Bruce DeMars first submarine assignment was the diesel Capitaine (SS-336). He underwent nuclear power training, followed by assignment to the nuclear-powered submarines George Washington (SSBN-598), Snook (SSN-592), and Sturgeon (SSN-637) before taking command of Cavalla (SSN-684) from 9 February 1973 to 28 December 1974. US Navy courtesy of Bill Gonyo.
Cavalla32kCommemorative postal cover marking the commissioning of the Cavalla (SSN-684), 26 January 1974.Courtesy of Jack Treutle.
Cavalla29kAdmiral Hyman G. Rickover many feet below the ocean surface at the controls of the nuclear attack submarine Cavalla (SSN-684). Willis H. Shapley of NASA fame (front) chats with Admiral Rickover.US Navy photo courtesy of Bill Gonyo.
Cavalla190kCavalla goes ballistic. USN photo courtesy of Scott Koen & ussnewyork.com.
Sturgeon Class43k Oil on canvas painting by the artist Jim Christley entitled "Trailing".
During the Cold War the US Naval Submarine Force was tasked with keeping tabs on Soviet Naval movements in particular, the Soviet Submarine Force. Submarines of the Sturgeon Class were well suited to this task and often trailed Soviet submarines for days reporting on their movements and recording noise signatures. In this image, such a trailing has turned into a close aboard encounter as a Soviet Viktor III Class has turned to port to check his baffles (to listen to see if anyone is immediately astern). A trailing Sturgeon has stopped his screw and gone quiet. Extending far behind the US submarine is its towed array sonar which assists in giving a clear picture of the ocean's acoustics.
Photo & text courtesy of subart.net.
Submerged submarines145kSubmerged submarines in tandem.U.S. Navy Photo courtesy of Robert Hall.
Cavalla76kCavalla (SSN-684) gets a push and shove from YTB-815 (SSN-684) at Pearl Harbor in summer 1980 after sailing from Bremerton Washington.Photo & copyright courtesy of Steven B. VanSlyck.
Cavalla716kA crane lowers the deep submergence rescue vehicle Avalon (DSRV-2) onto pylons attached to the hull of the nuclear-powered attack submarine Cavalla (SSN-684) at Pearl Harbor on 2 Sep 1981. The Avalon and Cavalla are taking part in a fly-away exercise to train personnel in the handling and operation of the (DSRV-2). Defense Visual Information Center photo # DN-SN-82-04945 by PH1 Terry Mitchell, courtesy of dodmedia.osd.mil.
Cavalla761kA port quarter view of the nuclear-powered attack submarine Cavalla (SSN-684) with the deep submergence rescue vehicle Avalon (DSRV-2) attached at Pearl Harbor on 2 Sep 1981. Defense Visual Information Center photo # DN-SN-82-04955 by PH1 Terry Mitchell, courtesy of dodmedia.osd.mil.
Avalon & Cavalla 51k Avalon (DSRV-2), riding on the Cavalla (SSN-684). US Navy photo, courtesy of CHINFO Chief of Naval Information.
Cavalla4.10kWelcome aboard Cavalla (SSN-684), 1987 PDF. PDF courtesy of Darryl L. Baker.
Cavalla148kUnderway off San Francisco Bay, Cavalla (SSN-684) appears in this photo that was issued by the ship and the Mare Island project team during her overhaul at Mare Island Naval Shipyard between 30 Sep 1987 and 9 January 1990. Note: That is a seagull to the left of the ship's patch.Text courtesy of Joe Duvall. US Navy photo # 224557, courtesy of Darryl L. Baker.
Cavalla405k Cavalla (SSN-684) in San Pablo Bay on 13 February 1990 after completing overhaul at Mare Island.USN photo courtesy of Vallejo Naval and Historical Museum via Darryl L. Baker.
Cavalla69kCommemorative postal cover marking the Cavalla (SSN-684) surfaced above the Arctic Circle,3 May 1995.
This historically multicolored printed documented polar mail was produced by Crews Recreation and Welfare Committee and sold to general public. It is enhanced by special North Polar Cancellation that received limited use.
Courtesy of Jack Treutle.
Cavalla37kCavalla (SSN-684) surfaced above the Arctic Circle, and crew photo, 3 May 1995.US Navy photo courtesy of the US Navy Arctic Submarine Laboratory web site.
Cavalla37kCavalla (SSN-684) surfaced above the Arctic Circle, 3 May 1995.US Navy photo courtesy of globalsecurity.org web site.
Cavalla456k Starboard bow view of the Cavalla (SSN-684), underway as it exits the harbor at Naval Station Pearl Harbor, Hawaii (HI). The Arizona Memorial is visible in the background on 1 January 1997.Defense Visual Information Center photo # DN-SD-04-09768 courtesy of dodmedia.osd.mil.
Cavalla72kCaptain Charles J. Leidig, Jr. was the Commanding Officer of Cavalla (SSN-684) from 1994-1997, where he led the Navy's first unclassified science mission to the Arctic Ocean, and twice deployed to the Western Pacific. Under his command Cavalla set the Pacific Fleet endurance record of 63 consecutive days of Arctic under-ice operations, earned two Meritorious Unit Commendations and in 1996 was awarded the Navy Battle Efficiency E, Engineering Excellence E, and Tactical Operations Excellence 'T'. US Navy photo courtesy of Bill Gonyo.

There is no DANFS History currently available for Cavalla (SSN-684) at the Haze Gray & Underway Web Site, the main archive for the DANFS Online Project.
Crew Contact And Reunion Information
U.S. Navy Memorial Foundation
Fleet Reserve Association

Additional Resources and Web Sites of Interest
FAS--SSN-637 Sturgeon class

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