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Mattaponi Class, U.S. Fleet Oilers


Photograph of fleet oiler Mattaponi
National Archives. Via Wildenberg (1996)

Specifications:

Tonnage 5400 tons light displacement
21,750 tons fully loaded
Dimensions 520' by 68' by 30'6"
158.50m by 20.73m by 9.30m
Maximum speed       17 knots
Complement 242
Armament 1 5"/38 dual-purpose guns
4 3"/50 AA guns
8 40mm Bofors AA guns
8 20mm Oerlikon AA guns
Machinery
1-shaft geared turbine (12,000 shp)
2 boilers
Capacity 131,500 barrels
16,400 tons


The Mattaponis were Maritime Commission standard T2-A-MC-K tankers completed for Keystone Tankship Corporation with Navy subsidies for the higher speed that would be needed for fleet oilers in time of war.  All were acquired by the Navy at or shortly after completion. They closely resembled the Kennebecs but were slightly larger. This proved advantageous in that they had room for standard boilers capable of producing steam for 12,000 shp, whereas the Kenenbecs had to have special boilers constructed.

None were lost in the Pacific.


Units in the Pacific:

Tappahannock      

Arrived 1942-8-29

Neches

Arrived 1942-10

Monongahela

Arrived 1942-11

Patuxent

Arrived 1942-12-27

References

DANFS

NavSource.org
Wildenberg (1996)


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