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Heavy lift
Operated by United States Navy
Photo: Unknown authorUnknown author · Public domain · file
Largest in this registry
#30,913
of 84,014 with a recorded tonnage
Largest heavy lift
#51
of 223 of this type with a recorded tonnage
Largest in its fleet
#85
of 177 in this fleet with a recorded tonnage
In brief
SS Pacific Tracker is a United States Maritime Administration (MARAD) missile range instrumentation ship that monitors tests conducted by the Missile Defense Agency. It was formerly a crane ship named SS Beaver State (T-ACS-10) was named for the state of Oregon, which is also known as the Beaver State. As of 30 September, 2023, Pacific Tracker was listed in the National Defense Reserve Fleet, Pacific division assigned to Portland, OR.
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.
At 15,018 gross tons, SS Beaver State is the 30,913th largest of the 84,014 vessels in this registry that report a tonnage. The median across that set is 5,994 GT, so this hull is about 2.5 times the typical vessel on record here. The largest measures 499,167 GT.
Among the 255 heavy lifts held here, it ranks 51st by tonnage — larger than 77% of that group. Their median tonnage is 1,670 GT, and the largest tenth begin at 24,484 GT. The flag most often flown by this group is Russia (41 ships). The yard that appears most often against it is Pella Sietas, with 8 hulls on record.
United States is the country of registry for 2,278 vessels in this directory, of which SS Beaver State is the 280th largest by tonnage. 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 7 heavy lifts flying the United States flag, of which none is larger than SS Beaver State.
SS Beaver State was built in 1965, making it 61 years old. It is one of 378 hulls in this registry delivered that year, a cohort whose median tonnage is 695 GT; within it this ship is the 11th largest. Across the whole of the 1960s the registry holds 4,074 vessels, median 844 GT. The median build year across the entire registry is 1995.
The registry attributes 47 vessels to Ingalls Shipbuilding, with a median tonnage of 8,741 GT, delivered between 1943 and 2005. See the rest of that yard’s output.
At 203.0 m overall, SS Beaver State is 122.5 m longer than the 80.5 m median for heavy lifts on record, with a beam of 75.0 m and a draft of 31.0 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 6507921 this registry holds 8 other vessels, whose median build year is 1965 and which range from 1944 to 1966. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1965.
Its IMO number, 6507921, carries its own check digit. The first six digits are weighted seven down to two and summed — 6×7 + 5×6 + 0×5 + 7×4 + 9×3 + 2×2 = 131 — and the last digit of that total, 1, must equal the seventh digit, 1. It does, so this number is well formed.
Nearest by tonnage among heavy lifts
| Ship | Built | Gross tonnage |
|---|---|---|
| Lone | 2011 | 15,199 |
| Jumbo Javelin | 2004 | 15,022 |
| Fairpartner | 2004 | 15,022 |
| SS Beaver State (this ship) | 1965 | 15,018 |
| Happy Dynamic | 2011 | 14,784 |
| «Happy Dragon» | 2011 | 14,784 |
| Happy Dover |
Record
Events recorded against this vessel in the source, with the dates the source gives. An event with no date is listed last rather than assigned one.
Class
| Ship | IMO | Flag | Built | Gross tonnage |
|---|---|---|---|---|
| SS Equality State | 5386605 | United States | 1961 | — |
| SS Diamond State | 5170185 | United States | 1962 | — |
| SS Green Mountain State | 6421347 | United States | 1965 | — |
| SS Grand Canyon State | 6510899 | United States | 1965 | — |
| SS Gem State | 6520911 | United States | 1966 | — |
| SS Keystone State | 6605022 | United States | 1966 | — |
Same fleet
Provenance
Vessel recordWikidata, released under CC0, keyed on this ship’s IMO number.
Written summaryQuoted from SS Pacific Tracker on English Wikipedia, reused under CC BY-SA 4.0.
PhotographBy Unknown authorUnknown author, reused under Public domain.
| 2011 |
| 14,784 |