Brazilian research ship Almirante Maximiano

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Almirante Maximiano
NameAlmirante Maximiano
NamesakeAdmiral Maximiano Eduardo da Silva Fonseca
BuilderTodd Pacific Shipyards
Launched13 February 1974
Commissioned3 February 2009
HomeportRio de Janeiro
StatusShip in active service
General characteristics
TypeResearch ship
  • 3,865 tons standard
  • 5,450 tons full load
Length93.4 m (306 ft)
Beam13.4 m (44 ft)
Draught6.59 m (21.6 ft)
Speed13 knots (24 km/h; 15 mph)
Range20,000 mi (17,000 nmi; 32,000 km)
Endurance90 days
Aircraft carried2 Helibrás Esquilo (locally designated as UH-12/13)
Aviation facilitiesHelipad and hangar

Almirante Maximiano (H-41) is an ice-strengthened oceanographic research ship of the Brazilian Navy. The ship bears this name in honor of Admiral Maximiano Eduardo da Silva Fonseca. It was built by the Todd Pacific Shipyards of Seattle, Washington, and was launched on 13 February 1974. It was acquired by the Brazilian Navy on 3 September 2008 for the Brazilian Antarctic Program. Prior to Brazilian service, the ship served commercial operations under the names Ocean Empress, Naeraberg, American Empress, Maureen Sea, Scotoil I and Theriot Offshore I.

Operational history[edit]

In November 2017 the ship actively participated in the search for the Argentine submarine ARA San Juan, which disappeared during on patrol along the Argentine coast. In 21 November, the vessel carried out an oceanic sweep operation in conjunction with ARA Puerto Deseado and ARA Austral of the Argentine Navy.


  1. ^ NPo Almirante Maximiano - H41 Navios de Guerra Brasileiros. Retrieved on 2012-02-29. (in Portuguese).