Hughes Mining Barge
HMB-1 in San Diego, June 2005
|Name:||Hughes Mining Barge|
|Fate:||Sold, June 2012|
|General characteristics |
|Displacement:||5,800 long tons (5,893 t) light
10,875 long tons (11,050 t) full load
|Length:||324 ft (99 m)|
|Beam:||106 ft (32 m)|
|Draft:||13 ft (4.0 m)|
The Hughes Mining Barge, or HMB-1, is a submersible barge about 99 m (324 ft) long, 32 m (106 ft) wide, and more than 27 m (90 ft) tall. The HMB-1 was originally developed as part of Project Azorian (more widely, but erroneously, known as "Project Jennifer"), the top-secret effort mounted by the Central Intelligence Agency to salvage the remains of the Soviet submarine K-129 from the ocean floor.
The HMB-1 was designed to allow the device that would be used to grasp and lift the submarine to be constructed inside the barge and out of sight, and to be installed in the Glomar Explorer in secrecy. This was done by towing the HMB-1, with the capture device inside, to a location near Catalina Island (off the coast of California), and then submerging it onto stabilizing piers that had been installed on the seafloor. The Glomar Explorer was then maneuvered over the HMB-1, the retractable roof was opened, and the capture device lifted into the massive "moon pool" of the ship, all within clear sight of people on the beach.
After the conclusion of Project Azorian, the HMB-1 was mothballed at the Todd Shipyard in San Francisco, California until November, 1982. At that time, the United States Navy towed the huge barge to a Lockheed Martin facility in Redwood City, California, where it became a floating drydock for the construction and sea trials of the Sea Shadow, an experimental stealth ship being tested by the Navy. Sea trials of the Sea Shadow continued until 1986.
After several attempts to find the vessel a home at a museum, General Services Administration offered the HMB-1 and Sea Shadow for sale as scrap. The vessels were bought by the Bay Ship & Yacht Company of Alameda, California for US$2.5 million in June 2012. Under the terms of the sale Sea Shadow must be scrapped, but the company intends to use the Barge as an enclosed drydock.
The HMB-1 currently sits pierside at Treasure Island, in the San Francisco Bay, where it is being outfitted for service as a drydock. The overhaul includes new equipment that will allow the dock to submerge and surface by pumping ballast water, rather than by the previous compressed air system. When the overhaul is complete, the HMB-1 will go to the estuary that lies between Alameda and Oakland, on the Alameda side, just west of the ferry landing. 
The Sea Shadow has been cut up and scrapped.
- Weiser, Matt (July 6, 2012). "Innovative stealth ship sold to Alameda firm for scrap". The Sacramento Bee. Retrieved 11 September 2012.
- "Fact Sheet for Hughes Mining Barge (HMB-1)". Historic Naval Ships Association. 2012. Retrieved 11 September 2012.
- Polmar et al. 202, p. 93.
- Newman, Barry (February 24, 2009). "The Navy Has A Top-Secret Vessel It Wants To Put On Display; Sea Shadow and Its Satellite-Proof Barge Need a Home; Plotting in Providence". Wall Street Journal. p. 1.
- "Navy Plans to Scrap First Experimental Stealth Ship". Fox News. June 18, 2011.
- Bill Elliot, Bay Ship & Yacht.
- Chuck Wright, Bay Ship & Yacht
- Roy Varner and Wayne Collier "A Matter of Risk: The Incredible Inside Story of the CIA's Hughes Glomar Explorer Mission to Raise a Russian Submarine", 1978
- Sharp, David (2012). The CIA’s Greatest Covert Operation: Inside the Daring Mission to Recover a Nuclear-Armed Soviet Sub. Lawrence, KS: University Press of Kansas. p. 344. ISBN 978-0-7006-1834-7.
- Polmar, Norman (2010). Project Azorian - The CIA and the Raising of the K-129. Annapolis MD: Naval Institute Press. p. 238. ISBN 978-1-59114-690-2.
- AZORIAN The Raising of the K-129 / 2009 - 2 Part TV Documentary / Michael White Films Vienna
- Photos and details of HMB-1
- Overview of Project Jennifer
- "The Navy Has a Top-Secret Vessel It Wants to Put on Display" by Barry Newman - Wall Street Journal - February 24, 2009
- Virtual tour inside HMB-1 and Sea Shadow, 2011, includes HMB-1 operating manual.
- Google Maps view of The Hughes Mining Barge
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