With chart and nautical publication management highlighted as one of the most common reasons for deficiency detentions by Port State Control (PSC), ship operators are calling for new and effective navigation solutions. The features of Thomas Gunn’s new Voyager 4 digital chart management system, launched this month following successful sea trials, provide ship owners and ship managers with the tools they need to ensure that Safety of Navigation standards on board meet PSC and vetting inspection requirements, the manufacturer said.