Van der Velden Maritime Systems will be showcasing a selection of their vessel propulsion products at upcoming 'Ahoy Rotterdam', 5-8, November 2013 at booth 1405 in Hall 1. The company has also been selected to participate in the Green Route. Van der Velden will present information, about its products including the Velden® FLEX tunnel manoeuvring and propulsion system, which is designed for inland and coastal ships, and offers tremendous advantages in the expansion of capacity, fuel consumption, speed and manoeuvrability.