ATR-1 Class Rescue Tug / Sotoyomo Class Auxiliary Fleet Tug:
- Laid down, 27 April 1944, as Rescue Ocean Tug ATR-104, at Levingston Shipbuilding Co., Orange, TX.
- Launched, 5 June 1944
- Reclassified Auxiliary Fleet Tug (ATA-177), 15 May 1944
- Commissioned, USS ATA-177, 2 September 1944
- During World War II USS ATA-177 was assigned to the Asiatic-Pacific Theater
- Grounded at Okinawa by "Typhoon Louise", 9 October 1945, refloated, 12 October 1945
- Following World War II USS ATA-177 was assigned to Occupation service in the Far East from 7 October to 13 November 1945
- Decommissioned, date unknown
- Struck from the Naval Register, date unknown
- Transferred to Chile, 29 September 1947, named Lientur (PP-3)
- Decommissioned by the Chilean Navy in 1984
- Final Disposition, fate unknown
Displacement 835 t.(fl)
Beam 33' 10"
Draft 13' 2"
Speed 13 kts.
one 3"/50 cal dual purpose gun mount
two single 20mm AA gun mounts
Largest Boom Capacity 5 t.
Fuel Capacity Diesel 1,200 Bbls
two GM 12-278A diesel-electric engines
single Fairbanks-Morse Main Reduction Gears
two Diesel-drive 60Kw 120V D.C. Ship's Service Generators
single propeller, 1,500shp