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Cruise ship
Operated by Peninsular and Oriental Steam Navigation Company
Photo: Unknown authorUnknown author · 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
SS Mongolia was a steam turbine-driven twin-screw passenger-and-cargo ocean liner launched in 1922 for the Peninsular and Oriental Steam Navigation Company (P&O) for service from the United Kingdom to Australia. Later in P&O service she sailed for New Zealand, and in 1938 she was chartered to a P&O subsidiary, the New Zealand Shipping Company, as SS Rimutaka.
In 1950 she was sold to become the SS Europa, carrying immigrants to the United States from Europe; later, she became a Bahamas cruise ship, the SS Nassau. Its final incarnation was under a Mexican flag as a Los Angeles to Acapulco cruise liner, SS Acapulco, making her the only ocean liner to ever fly the Mexican flag. The ship was scrapped in 1964.
Vessel particulars
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
Construction
Measurements
In context
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 Kingdom is the country of registry for 2,394 vessels in this directory. The most common class under that flag is vessels this registry holds no type classification for (1,835 ships), and the median vessel measures 2,515 GT. Browse every ship flagged United Kingdom.
Narrowing to both dimensions at once, this registry holds 37 cruise ships flying the United Kingdom flag.
SS Mongolia was built in 1923, making it 103 years old. It is one of 47 hulls in this registry delivered that year, a cohort whose median tonnage is 4,281 GT. Across the whole of the 1920s the registry holds 516 vessels, median 2,350 GT. The median build year across the entire registry is 1995.
The registry attributes 12 vessels to Armstrong Whitworth, with a median tonnage of 4,147 GT, delivered between 1900 and 1926. See the rest of that yard’s output.
At 175.0 m overall, SS Mongolia is 23.1 m shorter than the 198.1 m median for cruise ships on record, with a beam of 22.0 m and a draft of 9.1 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 5001580 this registry holds 12 other vessels, whose median build year is 1956 and which range from 1923 to 1962. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1923.
Its IMO number, 5001580, carries its own check digit. The first six digits are weighted seven down to two and summed — 5×7 + 0×6 + 0×5 + 1×4 + 5×3 + 8×2 = 70 — and the last digit of that total, 0, must equal the seventh digit, 0. It does, so this number is well formed.
Nearest by IMO number
| Ship | IMO | Built |
|---|---|---|
| Acavus | 5001633 | 1958 |
| National Star | 5001499 | 1960 |
| Ergina | 5001475 | — |
| USNS Abiqua | 5001334 | 1943 |
Same fleet
Provenance
Vessel recordWikidata, released under CC0, keyed on this ship’s IMO number.
Written summaryQuoted from SS Mongolia (1922) on English Wikipedia, reused under CC BY-SA 4.0.
PhotographBy Unknown authorUnknown author, reused under Public domain.