Osiris Projects, part of Bibby Marine Survey Services, announce the start of construction by French shipbuilder Socarenam in Boulogne, of a sister ship to 'Bibby Tethra', to be named 'Bibby Athena'. A few subtle changes to the design for the new vessel reflect the company’s development into shallow geotechnical sampling and a more challenging offshore market. Launched in 2011, Bibby Tethra has proven the overall success of the small waterplane area twin hull (SWATH) design in maximising stability and seakeeping ability in challenging sea conditions, while consistently achieving quality data.