Almirante Viel is a Polar Class 5 icebreaker operated by the Chilean Navy.

[6][7][8] Previously referred to with the project name Antartica 1, it replaced the 1969-built second-hand vessel Almirante Óscar Viel acquired from Canada in 1994 and decommissioned in 2019.

[3] Almirante Viel is strengthened for navigation in ice in accordance with the Unified Requirements for Polar Class Ships developed by the International Association of Classification Societies (IACS).

The engines meet International Maritime Organization Tier III emission limits for nitrogen oxides without the use of selective catalytic reduction.

[15] Her two fixed pitch propellers, each driven by a 4.5-megawatt (6,000 hp) electric propulsion motor, give Almirante Viel speed of 15 knots (28 km/h; 17 mph) and range of 14,000 nautical miles (26,000 km; 16,000 mi) in open water, and ability to break 1-metre (3.3 ft) level ice at a continuous speed of 3 knots (5.6 km/h; 3.5 mph).