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Open data · every figure carries its source

World Shipping DirectoryCompanies · Ships · Fleets

A public reference property of Baalvion

Open data · every figure carries its source

World Shipping DirectoryCompanies · Ships · Fleets

Naval / patrol

USS Density

IMO 6421593United StatesBuilt 1945

Operated by United States Navy

Photo: US Navy · Public domain · file

No gross tonnage is recorded for this vessel, so it cannot be ranked by size. Rank is only shown where the underlying measurement exists.

In brief

About USS Density

Full article ↗

USS Density (AM-218) was an Admirable-class minesweeper built for the U.S. Navy during World War II. She was built to clear minefields in offshore waters, and served the Navy in the Pacific Ocean.
She was launched 6 February 1944 by Tampa Shipbuilding Co., Inc., Tampa, Florida; sponsored by Miss M. Farmwald; and commissioned 15 June 1944. She was reclassified MSF-218 on 7 February 1955.
The vessel was later renamed MV Galaxy and was home to the British offshore pirate radio station Radio London.

Quoted from USS Density on English Wikipedia, reused under CC BY-SA 4.0.

Vessel particulars

Identification and dimensions

Every value is as recorded in the source. Blanks are values the source does not hold — none is estimated from a sister ship or a class average.

Identification

IMO number: 6421593
IMO check digit: Valid

In context

How USS Density compares

Every figure in this section is a count, a rank or a percentile over vessels actually held in this registry — not over the world fleet, which is larger. Nothing here is estimated.

United States is the country of registry for 2,278 vessels in this directory. The most common class under that flag is vessels this registry holds no type classification for (977 ships), and the median vessel measures 1,706 GT. Browse every ship flagged United States.

Narrowing to both dimensions at once, this registry holds 136 naval / patrols flying the United States flag.

USS Density was built in 1945, making it 81 years old. It is one of 191 hulls in this registry delivered that year, a cohort whose median tonnage is 3,923 GT. Across the whole of the 1940s the registry holds 1,039 vessels, median 4,053 GT. The median build year across the entire registry is 1995.

The registry attributes 2 vessels to Tampa Shipbuilding Company, delivered between 1945 and 1945. See the rest of that yard’s output.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 6421593 this registry holds 11 other vessels, whose median build year is 1964 and which range from 1938 to 1965. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1945.

Its IMO number, 6421593, carries its own check digit. The first six digits are weighted seven down to two and summed — 6×7 + 4×6 + 2×5 + 1×4 + 5×3 + 9×2 = 113 — and the last digit of that total, 3, must equal the seventh digit, 3. It does, so this number is well formed.