For optimal efficiency, the propeller should be positioned below the vessel’s baseline. However, when navigating in shallow waters, constraints arise regarding propeller placement. An adjustable-height thruster offers a solution. This lifting system consists of two sliding rods near the upper gearbox and a clamp encircling the vertical outer tube of the thruster. Hydraulic cylinders facilitate precise vertical movement of the entire thruster.

Clearing debris from a propeller becomes more manageable when the thruster can be tilted. The inclusion of hydraulic cylinders and a reinforced upper gearbox results in an easily operable tilting system. Moreover, this design allows for propeller replacement without requiring dry-docking of the vessel. A tilting system proves particularly valuable when a vessel navigates waters abundant with floating debris.