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Sargento Aldea

The "Yelcho" AGS and "Janequeo" were sister ships of ex-ATF 98 Arikara Sargento Aldea [not Sargento Aledea, as widely reported]. Ex-Tekesta (ATF-93) in the Republic of Chile service as the Antarctic research and survey ship Yelcho (AGS-64). USS Potawatomi (ATF-109) was transferred to Chile and renamed Janequeo (AGS-63).

ATF 98 Arikara was built in 1943 in the Charleston Shipbuilders and Drydock Company shipyard of the USA. Its dimensions were: 62 x 11 x 5 meters. He had outstanding performance in Europe especially in the invasion of Normandy, in the Pacific, the battle of Okinawa and the conflict in Korea and Viet Nam. He received four times the distinction by "Efficiency in combat", the Government of the United States grants to outstanding performance units. On 01 July 1971, he was transferred to the Government of Chile performing since then as a ship's emergency and support of the squadron [though the Library of Congress Country Study describes this vessel as a corvette performing patrol duties, but it also reported this vessel as the Abnaki (ATF-96), which in fact was transferred to Mexico]. Withdrawn from the service by resolution C.J.A. Res. On August 14, 1992 No. 4520/B-692.


Ship List
Name # Port Laid
Launch Comm Decomm Notes
# Sargento Aldea 1943 1971 1992 ex-USS ATF 98 Arikara
AGS-63 Janequeo 19 19 19 ex-Potawatomi (ATF-109)
AGS-64 Yelcho 19 19 19 Ex-Tekesta (ATF-93)

Displacement, full1,235 tons
Displacement, light tons
GT (Gross Tonnage) tons
NT (Net Tonnage) tons
DWT (Deadweight) tons
Length, O/A 62.5 meters / feet
Length, W/L meters / feet
Length, B/P meters / feet
Max Beam meters / feet
Draft5.2 meters / feet
Height meters / feet
Propulsion Type
Number of Main Engine(s)
Main Engine builder
Main Model
Main RPM
Main power3,600 BHP
Speed, maximum15 knots
Speed, Cruise Knots
Range nautical miles at knots
Stores endurance days
Weapons Systems
  • 2 guns 20/63 mm.
  • 1 canon 3 "/ 50."
  • Aviation

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    Page last modified: 04-12-2012 19:02:25 ZULU