Aker Kvaerner has conceived, designed and delivered more than 50 semisubmersible platforms. 37 units of H-3 and H-4 design have been built. 18 delivered from own yards, the remaining built by other yards on license. The H-6e represents today’s state of the art and is built on experience from previous designs. A special focus when developing this design has been to enable safe and efficient operations in deep waters and harsh offshore environments, including environmental sensitive areas.