Boskalis Christens ‘Industry’s Largest’ Subsea Rock Installation Vessel

Boskalis has christened its new subsea rock installation (SRI) vessel, described by the company as the largest in the industry, following a year and a half of conversion work.

Windpiper, whose purchase Boskalis announced in January 2025, was developed by converting an existing vessel into an SRI vessel with a rock-carrying capacity of 45,500 tonnes.

It is 227 metres long and 40 metres wide, featuring a total installed power exceeding 31,000 kW and over a hundred single-occupancy cabins.

The vessel was christened on 3 July and is now ready for its first rock installation project in the Baltic Sea.

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