USS LCI(L)-1091

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United States
Name: USS LCI(L)-1091
Laid down: 31 August 1944
Launched: 14 September 1944
Commissioned: 21 September 1944
Reclassified: LSIL-1091, 28 February 1949
Decommissioned: 1955
Struck: Unknown
Honors and
Status: Currently a museum ship at the Humboldt Bay Naval Sea/Air Museum at Eureka, CA. in December 2005.
General characteristics
Class & type: LCI(L)-351-class large landing craft
Displacement: 236 t.(light), 264 t.(landing), 419 t.(loaded)
Length: 158 ft 5.5 in (48.298 m)
Beam: 23 ft 3 in (7.09 m)
  • Light, 3 ft 1.5 in (0.953 m) mean
  • Landing, 2 ft 8 in (0.81 m) fwd, 4 ft 10 in (1.47 m) aft
  • Loaded, 5 ft 4 in (1.63 m) fwd, 5 ft 11 in (1.80 m) aft
Propulsion: 2 sets of 4 General Motors diesels, 4 per shaft, BHP 1,600, twin variable pitch propellers
  • 16 knots (30 km/h) (max.)
  • 14 knots (26 km/h) maximum continuous
Endurance: 4,000 miles at 12 knots, loaded, 500 miles at 15 knots; and 110 tons of fuel
Capacity: 75 tons cargo
Troops: 6 Officers, 182 Enlisted
Complement: 4 officers, 24 enlisted
Armor: 2" plastic splinter protection on gun turrets, conning tower, and pilot house

USS LCI(L)-1091 is an LCI(L)-351-class large landing craft built for the United States Navy in World War II. Like most ships of her class, she was not named and known only by her designation.

Operational history

LCI(L)-1091 was laid down at Defoe Shipbuilding Company in Bay City, Michigan, and commissioned on 21 September 1944.

LCI-1091 arrived in the Pacific at the end of the battle for Iwo Jima, fought at Okinawa in 1945 and was used as a minesweeper to clean up around Japan after the war. She was assigned to the Pacific Theatre and participated in the assault and occupation of Okinawa Gunto from 28 April to 30 June 1945. She received two battle stars for her WW II duty.

The landing craft performed minesweeping duties in the Kōchi-Shikoku area from 8 September to 16 September, and in the Nagoya area from 28 September to 25 October.

LCI(L)-1091 was on occupation duty from 2 September to 16 December 1945. In 1946 she participated in the Operation Crossroads atomic bomb tests at Bikini Atoll as a testing support ship.

On 28 February 1949, she was, like all other LCIs remaining, reclassified as LSIL-1091.

The ship remained active during the Korean War. In 1951 she was converted to a Laboratory Ship. During her time in Korea, LSIL-1091 was assigned as an Epidemiological Control Ship[1] for Fleet Epidemic Disease Control Unit No. 1, a part of the U.S. effort to combat malaria in Korea.[2] From October to September 1951, LSIL-1091 was at Koje-do performing malaria testing among residents and refugees.[3]

She was used in a covert missions behind enemy lines investigating disease outbreak of alleged bubonic plague in North Korea. Brigadier General Crawford Sams "medical intelligence" mission to Wonsan, North Korea in March 1951 had been first launched from the LCI(L)-1091.[4] The ship received four battle stars for her role in the Korean War.

After Korea the LCI-1091 became one of the navy's smallest aircraft carriers when she was used to launch anti-aircraft target drones.

In 1955 she was decommissioned at Astoria, Oregon.

The former LSIL-1091 was sold for commercial use and operated as a cannery ship for salmon on the Yukon River in Alaska from 1961 until 1985. In 1988 she was purchased by Dr. Ralph Davis and moved to Eureka, California, where she fished for albacore from 1995 until 2003.

In 2005, she was donated to be a museum ship for the Humboldt Bay Naval Sea/Air Museum at Eureka, and is currently open to the public during restoration. She is open on Fridays and Sundays from 9:00 AM until 3:00 PM or any time by arrangement(usually Fridays and Sundays, but if the flag is flying from the forward mast, visitors are welcome).[5] The Humboldt Amateur Radio Club often runs a Special Event Amateur Radio station out of the original radio room.

LCI-1091 had been in continuous use for most of her 65 year life and remains in near original condition.

LCI(L)-1091 received two battle stars for World War II action and received four battle stars for Korean War as LSIL-1091.


  1. "HISTORY OF NAVY ENTOMOLOGY". United States Navy Medical Entomology. United States Navy. 2006-05-03. Retrieved 2007-12-11. 
  2. Marshall, Irvine H. (1955). "Malaria in Korea". In Walter Reed Army Institute of Research. Recent advances in medicine and surgery (19–30 April 1954) based on professional medical experiences in Japan and Korea, 1950-1953. Washington: Walter Reed Army Medical Center. p. 282. OCLC 4011756. Retrieved 2007-12-11.  (See footnote 5.)
  3. Marshall, p. 272.
  4. FEDCU One Fight an Unseen Enemy
  5. Rushton, Nathan (2005-12-11). "Historic ship now in hands of Naval Museum (Wayback Machine)". The Eureka Reporter. Archived from the original on 2007-09-28. Retrieved 2007-12-11.