The SOVs also improve work safety for the technicians. For example, access to the wind turbine is still possible in swells of up to 2.5 m using a new type of gangway from Dutch company Ampelmann. With traditional crew vessels - so-called 'Crew Transfer Vessels' (CTVs) - the turbines could only be reached safely up to a wave height of 1.5 meters. The hydraulically stabilized bridge ...