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Wärtsilä solutions chosen for two Chilean Navy vessels

The technology group Wärtsilä will supply the main propulsion machinery, as well as a range of other equipment and systems for two new 110-metre long amphibious transport vessels being built for the Chilean Navy.

The order was placed by Astilleros y Maestranzas de la Armada (Asmar), the state-owned shipyard constructing the vessels and it was included in Wärtsilä’s order book in February 2023.

The Escotillón IV project, under which these ships are being built, will not only increase Chile’s defence capabilities, but will also allow the ships to be used for humanitarian operations.

The full Wärtsilä scope for each ship includes two Wärtsilä 26 main engines and four Wärtsilä 20 auxiliary engines, an emergency generating set, two Wärtsilä gearboxes, two controlled pitch propellers (CPPs) with efficiency rudders and steering gear, the Wärtsilä ProTouch control system, a Wärtsilä tunnel thruster, a main switchboard, a power management system (PMS), two power take-in/take-out (PTI/PTO) drives, two uninterruptable power supply (UPS) systems, the transformers, and a bow thruster drive.

The energy efficient rudders are combined with high efficiency propellers, fairing caps and a bulb on the rudders. Testing has shown that this results in the required power values being reduced by 3-4 percent at the required vessel speed. The rudders and steering gears are the result of cooperation between Wärtsilä and Damen Marine Components.

Asmar has earlier selected Wärtsilä solutions for naval offshore patrol vessels and a scientific research vessel supplied to the Chilean Navy. The relationship between the two companies stretches back to 2006.

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