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NavSource Online: Service Ship Photo Archive
International Radio Call Sign:
November - Tango - Yankee - Hotel
Awards, Citations and Campaign Ribbons
Precedence of awards is from left to right
American Campaign Medal - World War II Victory Medal
Sotoyomo Class Auxiliary Fleet Tug:
Planned and authorized as Fleet Tug AT-173
Laid down, 7 November 1943, as Rescue Ocean Tug ATR-100 at Gulfport Shipbuilding, Port Arthur TX.
Reclassified Auxiliary Fleet Tug (ATA-173), date unknown
Launched, 12 March 1944
Commissioned USS ATA-173, 12 April 1944
Decommissioned, date unknown
Struck from the Naval Register, date unknown
Sold for merchant services, date unknown, to Lisbon Harbour Board, Lisbon, Portugal. renamed Dom Luiz
Resold in 1987, renamed Alpertucho, owner unknown
Final Disposition, fate unknown
Displacement 835 t.(lt) 1,360 t.(fl)
Beam 33' 10"
Draft 13' 2" (limiting)
Speed 12 kts.
one single 3"/50 dual purpose gun mount
two single 20mm AA gun mounts
Largest Boom Capacity 4 t.
Diesel 1,200 Bbls
two GM 12-278A Diesel-electric engines
single Fairbanks Morse Main Reduction Gear
Ship's Service Generators
one Diesel-drive 60Kw 120V D.C.
one Diesel-drive 30Kw 120V D.C.
single propeller, 1,200shp
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||ATR-100 running acceptance trials at Port Arthur, TX,, early 1944. Note the name board mounted on the bridge deck shield aft
of the bridge. “ATR-100” but no hull number on the bow. Note also the mounting of a 20mm gun on the bridge wing (with “monkey bars” which prevented a free swinging of
the mount all the way aft and the mast yardarms. This photo was edited to eliminate the radar and the TBS antennas. Also of note is the elongated 01 deck house aft of
the bridge deck which was common on Army LT’s and British lend lease BAT’s but not Navy ATA types.
There is no history available for USS ATA-173 at NavSource
Crew Contact And Reunion Information
U.S. Navy Memorial Foundation - Navy Log
Additional Resources and Web Sites of Interest
National Association of Fleet Tug Sailors
Last Updated 22 November 2013
This page is created and maintained by Gary P. Priolo|