Submarine Seahorse (SS-304)

Seahorse

國家	美國
艦級	Balao 級潛艇
Hull Number	SS-304
造船廠	Mare Island Navy Yard
安放龍骨日期	1942年7月1日
下水日期	1943年1月9日
服役日期	1943年3月31日
除役日期	1946年3月2日
排水量	1,550 tons standard; 2,424 tons submerged
長度	312 feet
寬度	27 feet
吃水	17 feet
動力來源	Four Fairbanks-Morse Model 38D8-1/8 9-cyl diesel engines (5,400shp), four Elliott electric motors (2,740shp), two 126-cell Sargo batteries, two propellers
速度	20 knots
續航力	11,000nm at 10 knots surfaced, 48 hours at 2 knots submerged
乘員	81
武裝	6x533mm forward torpedo tubes, 4x533mm aft torpedo tubes, 24 torpedoes, 1x127mm deck gun
Submerged Speed	8.75 knots

Contributor: C. Peter Chen

ww2dbaseUSS Seahorse was commissioned into service in Mar 1943. After shakedown and training cruises, she departed the west coast of the United States for Pearl Harbor, US Territory of Hawaii, from where she would embark on her first war patrol in Aug 1943. She would make a total of eight war patrols, most of which saw her sinking Japanese vessels ranking from small sail boats to large cargo ships; on 20 Apr 1944, she encountered a warship, Japanese submarine RO-45, and promptly destroyed her as well. She ended the war while on lifeguard station 40 miles southeast of Hachijo Jima of Izu Islands south of Japan, about 250 kilometers south of Tokyo, Japan. She was decommissioned from service at Mare Island Naval Shipyard at Vallejo, California, United States in Mar 1946 and was placed in reserve until she was removed from the US Navy Register in Mar 1967. She was sold for scrap in the following year.

ww2dbaseSource: Wikipedia

Last Major Revision: Apr 2013

Submarine Seahorse (SS-304) 互動地圖

Photographs

The National Ensign raised aboard submarine Skate, Mare Island Navy Yard, Vallejo, California, United States, 15 Apr 1943; Seahorse at left & Sargo at right

Supply ship SS Nira Luckenbach, submarine tenders Bushnell and Sperry, and submarines Sunfish, Haddock, Tarpon, Seahorse, and Swordfish at the submarine base piers on Sand Island, Midway Atoll, 29 Sep 1943.

Inactivated submarines at Mare Island Naval Shipyard, California, United States, early 1946

See all 7 photographs of Submarine Seahorse (SS-304)

Seahorse Operational Timeline

1942年7月1日	The keel of submarine Seahorse was laid down at Mare Island Naval Shipyard, Vallejo, California, United States.
1943年1月9日	Submarine Seahorse was launched at Mare Island Naval Shipyard, Vallejo, California, United States, sponsored by the wife of Chester C. Smith.
1943年3月31日	USS Seahorse was commissioned into service with Commander Donald McGregor in command.
1943年8月3日	USS Seahorse departed Pearl Harbor, US Territory of Hawaii for her first war patrol.
1943年8月29日	USS Seahorse attempted to attack a Japanese convoy in the Pacific Ocean, but was counterattacked prior to the launching of torpedoes. She suffered minor damage from depth charges.
1943年9月6日	USS Seahorse sank a Japanese transport in the Palau Islands, hitting her with three of four torpedoes fired. The subsequent depth charge counterattack caused severe leaks.
1943年9月14日	USS Seahorse attacked a Japanese tanker in the Palau Islands; all eight torpedoes missed.
1943年9月27日	USS Seahorse arrived at Midway Atoll, ending her first war patrol.
1943年10月20日	USS Seahorse departed Midway Atoll for her second war patrol.
1943年10月29日	USS Seahorse sank a small Japanese vessel with her deck gun south of Japan.
1943年10月30日	USS Seahorse sank a small Japanese vessel with her deck gun south of Japan.
1943年10月31日	USS Seahorse sank a small Japanese vessel with her deck gun south of Japan.
1943年11月2日	USS Seahorse sank Japanese cargo ships Chihaya Maru and Ume Maru south of Japan; nine torpedoes were expended during this attack, seven of which hit.
1943年11月22日	USS Seahorse sank Japanese cargo ship Daishu Maru south of Japan, hitting her with two of four torpedoes fired.
1943年11月26日	USS Seahorse sank Japanese tanker San Ramon Maru south of Japan, hitting her with two of three torpedoes fired.
1943年12月1日	USS Seahorse damaged a Japanese transport south of Japan, hitting her with two of four torpedoes fired. She ran out of torpedoes and set sail for Hawaii Islands.
1943年12月12日	USS Seahorse arrived at Pearl Harbor, US Territory of Hawaii, ending her second war patrol.
1944年1月6日	USS Seahorse departed Pearl Harbor, US Territory of Hawaii for her third war patrol.
1944年1月16日	USS Seahorse sank Japanese cargo ship Nikko Maru off the Mariana Islands, hitting her with three of four torpedoes fired.
1944年1月21日	USS Seahorse sank Japanese cargo ship Yasukuni Maru and passenger-cargo ship Ikoma Maru in the Pacific Ocean, expending nine torpedoes, five of which scored hits.
1944年1月28日	USS Seahorse began an 80-hour chase of a Japanese convoy off the Palau Islands.
1944年1月30日	USS Seahorse sank Japanese cargo ship Toko Maru south of Japan, which she had been chasing for many hours, hitting her with all three of three torpedoes fired.
1944年1月31日	USS Seahorse sank Japanese cargo ship Toei Maru south of Japan, which she had been chasing for many hours, hitting her with two of eight torpedoes fired.
1944年2月16日	USS Seahorse arrived at Pearl Harbor, US Territory of Hawaii, ending her third war patrol.
1944年3月16日	USS Seahorse departed Pearl Harbor, US Territory of Hawaii for her fourth war patrol.
1944年4月8日	USS Seahorse detected a Japanese convoy off the Mariana Islands. After dark, attacked the convoy and sank cargo ship Kizugawa Maru, hitting her with four of eight torpedoes fired. After evading depth charges, she attacked again, sinking cargo ship Bisaku Maru, hitting her with two of six torpedoes fired.
1944年4月12日	USS Seahorse assumed lifeguard station duty for US aircraft attacking Saipan, Mariana Islands.
1944年4月20日	USS Seahorse sank Japanese submarine RO-45 west of Saipan, Mariana Islands, hitting her with three of four torpedoes fired.
1944年4月27日	USS Seahorse sank Japanese cargo ship Akigawa Maru west of Saipan, Mariana Islands.
1944年5月3日	USS Seahorse was relieved from lifeguard station duty in the Mariana Islands and set sail for Milne Bay, Australian Papua.
1944年5月11日	USS Seahorse arrived at Brisbane, Australia, ending her fourth war patrol.
1944年6月11日	USS Seahorse departed Brisbane, Australia for her fifth war patrol.
1944年6月27日	USS Seahorse sank Japanese tanker Medan Maru and damage two other ships off Taiwan, hitting them with five of six torpedoes fired.
1944年7月3日	USS Seahorse sank Japanese cargo ship Nitta Maru and passenger-cargo ship Gyoyu Maru off Taiwan, hitting her with four of five torpedoes fired.
1944年7月4日	USS Seahorse sank Japanese cargo ship Kyodo Maru No. 28 off Taiwan, hitting her with five of her last six torpedoes.
1944年7月19日	USS Seahorse sank arrived at Pearl Harbor, US Territory of Hawaii, ending her fifth war patrol.
1944年10月6日	USS Seahorse claimed the sinking of a Japanese destroyer off Taiwan with one torpedo hit of six torpedoes fired.
1944年10月18日	USS Seahorse arrived at Midway Atoll, ending her sixth war patrol.
1945年3月9日	USS Seahorse departed for her seventh war patrol.
1945年4月8日	USS Seahorse sank a small Japanese vessel with gunfire off Japan.
1945年4月18日	USS Seahorse was damaged by two Japanese patrol vessels off Japan; she fired one torpedo in return, but it missed. She set sail for Guam, Mariana Islands for repairs.
1945年7月12日	USS Seahorse departed Pearl Harbor, US Territory of Hawaii for her eighth war patrol.
1946年3月2日	USS Seahorse was decommissioned from service at Mare Island Naval Shipyard at Vallejo, California, United States.
1962年11月6日	USS Seahorse was reclassified an auxiliary submarine and was given the new hull number AGSS-304.
1967年3月1日	Submarine Seahorse was struck from the US Naval Register.
1968年12月4日	Submarine Seahorse was sold to Zidell Explorations, Inc. of Portland, Oregon, United States for scrapping.

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Visitor Submitted Comments

1. Jeff says:
12 Feb 2013 03:43:03 PM

I found a large orange buoy at a salvage yard that had a plaque on it that said, The other end of the cable attatched to this buoy is secured to a sunken submarine, USS Sea Horse (space between Sea and Horse is there) Do not pull on this cable with a force greater than 5,000 pounds. There is the same information in another language under that. Anyone have any information on which boat that could have been hooked to? I was told it was possibly from Italy. Thank you.

2. Anonymous says:
8 Dec 2015 07:19:52 AM

You found a Rescue Buoy from the USS Seahorse, SSN-669. Submarine was decommissioned and scrapped in the 1990's. You might find a few of her old crew interested in that plaque. Piece of Serious Memorabilia for us.

3. V. Penprase says:
24 Jul 2017 06:08:50 AM

My father was an electrician on the Seahorse, he told us stories about wartime, but never told " secret orders" he was sworn to. I wish he could have seen this site! He passed away in 2008. All oh his kids and grandkids have a seahorse tatted somewhere on our bodies in honor of dad. He was a proud and honorable American until the day he died. Thank you for this site!

4. Anonymous says:
15 May 2018 07:15:34 PM

Isn't it about time to reveal the circumstances accurately. Please GOD, it is time for the truth. The records need to be released if they are not already. The truth will set us free, lies and deception will continue to entangle us in the web of destruction.

5. Leo Berger-Greer says:
4 Oct 2018 10:37:10 AM

My Great Uncle, Harry Holt Greer,
was the captain. We have his box of lead Japanese warship models and the original film reel of the movie about him, which you can find on youtube.

6. Anonymous says:
15 Nov 2018 05:40:04 PM

Does anyone remember Charles Paul Wilcox he was a chief on the Seahorse

7. Anonymous says:
10 Jul 2019 07:11:42 PM

Hi I'm trying to help a friend out his name is Alan van he was the Torpedoes mate on the USS seahorse and World War II just trying to find the crew roster for him

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