TRACTOR TUGS

Code No: 165

Video Running Time: 14 minutes

• Add to my list

This informative film shows how both single and twin unit tractor tugs (SUTTS and TUTTS) differ in their handling and application from conventional screw tugs and from each other.

The Voith Schneider tractor propulsion system with which a range of tugs is fitted is now well established as an alternative to conventional screws. Nevertheless, for those who know only larger ships and tugs fitted with screws, the Voith Schneider tractor unit will be something of a novelty and for that reason the mechanics are explained at the outset. A knowledge of what is happening underwater is essential to the understanding of the controls and the consequent behaviour of the ship.

The normal practices of ship husbandry apply to both SUTTS and TUTTS but, where the propulsion units demand special maintenance procedures, these are covered.