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NavSource Online: Submarine Photo Archive

Contributed by Scott Koen & ussnewyork.com.

Specifications (courtesy of specialoperations.com.) Builder: Northrop Grumman. Six were originally proposed, but cost over rides crippled the program, first proposed in 1994. The Navy in July 2003 took delivery of the first ASDS.
In service: 1 (Pearl Harbor) Length: 65 feet. Beam: 6.75 feet; Height: 8.25 feet; Dry Weight: 55 tons; Range: 125+ miles; Speed: 8+ knots; Propulsion: 67 hp electric motor (Ag-Zn battery);Diving Depth: Classified; Crew: Two (2) (pilot and navigator) Masts: 2 (Port - periscope, Starboard - Communication + Global Positioning System); Sonar: Forward Looking - detect natural/man made obstacles; Side Looking - terrain & bottom mapping, mine detection; Passengers: Up to sixteen SEALs, depending on equipment loads; Transported: Piggyback on the deck of a nuclear attack submarine.

Advanced SEAL Delivery System minisub

Size	Image Description	Source By
682k	Crew members aboard a U.S. Navy submarine,possibly either the Charlotte (SSN-766) or Greeneville (SSN-772), conduct an Emergency Personnel Transfer Hoist training exercise with a CH-46 "Sea Knight" helicopter from Helicopter Combat Support Squadron Five (HC-5) in Apra Harbor, Guam on 7 Novbember 2001. Note: The flat domes on the aft deck are attachment points for the Dry Deck Shelter or Advanced Seal Delivery Vehicle. The "tiles" on the hull of the boat are a rubberized anechoic tile attached to the outer hull to help absorb active sonar pulses.	USN photo # N-3889M-003 by Photographer's Mate 2nd Class Marjorie McNamee, courtesy of news.navy.mil. Partial text courtesy of David Johnston
493k	Crew members aboard a U.S. Navy submarine,possibly either the Charlotte (SSN-766) or Greeneville (SSN-772), conduct an Emergency Personnel Transfer Hoist training exercise with a CH-46 "Sea Knight" helicopter from Helicopter Combat Support Squadron Five (HC-5) in Apra Harbor, Guam on 7 Novbember 2001. Note: The flat domes on the aft deck are attachment points for the Dry Deck Shelter or Advanced Seal Delivery Vehicle. The "tiles" on the hull of the boat are a rubberized anechoic tile attached to the outer hull to help absorb active sonar pulses.	USN photo # N-3889M-004 by Photographer's Mate 2nd Class Marjorie McNamee, courtesy of news.navy.mil.
440k	US Navy Sailors aboard an unidentified *Los Angeles Class* Attack Submarine conduct Emergency Personnel Transfer Hoist Training with a USN CH-46 Sea Knight Helicopter from Helicopter Combat Support Squadron Five (HC-5) in Apra Harbor, Guam on 7 Novbember2001. The "bumps" on the after deck are attachment points for the ASDS or Dry Deck Shelter. Only these two 688's have this feature.	USN photo # DN-SD-04-13133, by PH2 Marjorie Mcnamee, USN, from the Department of Defense Still Media Collection, courtesy of dodmedia.osd.mil. & submitted by Bill Gonyo. Partial text courtesy of David Johnston
131k	The Advanced SEAL Delivery System, ASDS rides on the back of Charlotte (SSN-766) off the coast of Oahu with Honolulu in the background, 20 September 2002.	USN photo courtesy of hnn.navy.mil., submitted to this site by Bill Gonyo.
271k	The Los Angeles class submarine Greeneville (SSN-772), recently completed sea testing for the Advanced SEAL Delivery System (ASDS) off the coast of Pearl Harbor, Hawaii, 1 July 2003. ASDS is an 65 foot mini-submarine, which rides attached to the top of a much larger Los Angeles class submarine. It has increased range, speed, and capacity over the current SEAL Delivery Vehicle which is an open, wet submersible, that transports SEALs in scuba gear, exposing them longer to the elements. The ASDS mini-submarine is operated by a crew of two and can carry eight SEAL team members. The vessel is connected to the host ship via a watertight hatch, and has a sophisticated sonar and a hyperbaric recompression chamber.	USN photo # N-0000X-005, courtesy of news.navy.mil.
234k	Starboard side view of the Los Angeles class submarine Greeneville (SSN-772) recently completed sea testing for the Advanced SEAL Delivery System (ASDS) off the coast of Pearl Harbor, Hawaii, 1 July 2003.	USN photo # N-0000X-001, courtesy of news.navy.mil.
19k	Advanced SEAL Delivery System minisub ASDS at Pearl Harbor, 2004.	Photo courtesy of Honolulu Star Bulletin, 2004 via thesubreport.com.
457k	ASDS-2	USN photo courtesy of Scott Koen & ussnewyork.com.
304k	Atlantic Ocean, 22 August 2004, Virginia (SSN-774) has one of the most advanced torpedo delivery systems in the fleet. In addition to torpedoes, the Virginia-class will be armed with Tomahawk cruise missiles and has been designed to host the Advanced SEAL Delivery System (ASDS) and Dry-Deck Shelter to support various missions.	USN photo # N-2653P-370, by Journalist 1st Class James Pinsky,courtesy of news.navy.mil.
669k	A damaged Advanced SEAL Delivery System ASDS is converted to a training mini-sub at the Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility on 9 October 2014. The submarine is used for hands-on training of multiple trades that work on submarines.	USNR photo # 141009-N-EW716-001 courtesy of navy.mil.

Additional Resources and Web Sites of Interest
Advanced SEAL Delivery System [ASDS]

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