Containment system designer GTT has unveiled a new LNG carrier design with three cargo tanks instead of four, which could offer a lower cargo boil-off rate while reducing newbuilding costs.

The French technology, a specialist in membrane containment systems, said on Tuesday that it has secured approvals in principle from classification societies DNV and Bureau Veritas for the new LNG carrier concept.

The new design is based on a 174,000-cbm vessel and could feature three identically sized tanks of around 55,000 cbm to 60,000 cbm.