Ship&Offshore | Issue 05/2014
Gas powers ASD tugs
TOWAGE Offered a wide choice of propulsion systems, tug owners can optimise operation of their fleets according to navigational conditions. The particular demands of ship assistance are increasingly being met by tugs using azimuth stern drive (ASD), but other new propulsion systems are also gaining ground, writes Ralf Witthohn in the current edition of our series “Innovative Vessels”.