On the November 17, the last sea trials for submarine S-81 ‘Isaac Peral’ took place in Cartagena (Spain), before the most important milestone for the S-80 programme so far, its commissioning to the Spanish Navy, which occurred on November 30.

This submarine, one of the most modern conventional submarines of the world, is the first unit of the series of 4 that have been designed and built by Navantia for the Spanish Navy.

The design and construction of this state-of-the-art submarine represents the biggest