The initial idea was to develop a propulsion system with minimum vibration and noise emissions. The result is a rim driven propeller powered by a permanent-magnetic electric motor. The thruster system requires neither axle nor shaft or gearing. VIPs/VITs impress by their prompt steering and can also be retrofitted as propulsion systems or thrusters. If required, the propeller blades can be replaced individually.
That is fascinating technology lending itself to a wide variety of applications. Voith Inline Propellers (VIP) are used as propulsion systems for passenger boats, barges and large yachts. Voith Inline Thrusters (VIT) are used as propulsion systems or thrusters.