T-3 is a purpose built self-erecting drilling tender barge with a flat bottom, raked stern and raked bow hull shape.

The Self Erecting Tender Rig (SETR) is specially designed as a cost-efficient and very flexible drilling system for development scenarios involving multiple well slot fixed offshore platforms whereby the rig moves from platform to platform using its own Drilling Equipment Set (DES) which is lifted by its own crane.

Lifting operations can be made onto platforms up to a height of 90 feet above mean sea level.