Brazilian research ship Almirante Maximiano

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NApOc Almirante Maximiano (H-41).jpg
Almirante Maximiano
Name: Almirante Maximiano
Namesake: Admiral Maximiano Eduardo da Silva Fonseca
Builder: Todd Pacific Shipyards
Launched: 13 February 1974
Commissioned: 3 February 2009
Homeport: Rio de Janeiro
Status: Ship in active service
General characteristics
Type: Research ship
  • 3,865 tons standard
  • 5,450 tons full load
Length: 93.4 m (306 ft)
Beam: 13.4 m (44 ft)
Draught: 6.59 m (21.6 ft)
Speed: 13 knots (24 km/h; 15 mph)
Range: 20,000 mi (17,000 nmi; 32,000 km)
Endurance: 90 days
Complement: 106
Aircraft carried: 2 Helibrás Esquilo (locally designated as UH-12/13)
Aviation facilities: Helipad and hangar
Notes: NGB[1]

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).