An azimuth thruster is a configuration of marine propellers placed in pods that can be rotated to any horizontal angle, making a rudder redundant. These give ships better maneuverability than a fixed
Siemens Schottel azimuth thrusters
Azimuth thrusters on the tug Oued el Kebir, with Kort nozzles
The French Navy Mistral-class amphibious assault ship Dixmude manoeuvering in Jounieh bay; the wake at the stern is perpendicular to the ship, indicating the use of her azimuth thrusters.
The Voith Schneider Propeller is a specialized marine propulsion system manufactured by the Voith Group based on a cyclorotor design. It is highly maneuverable, being able to change the direction of i
Azimuth thruster
…Cyclorotor – Perpendicular-axis marine propulsion system Voith Schneider Propeller – Proprietary marine propulsion system Saildrive – Non-steerable propeller drive leg…
Voith Schneider Propeller
Lift forces imparted to the VSP from the water body
Path of a blade in the water
Twin Voith Schneider propeller with thrust plate on a tug's hull