Veth Propulsion by Twin Disc introduced a new contra-rotating propulsion system designed for passenger vessels and ferries during the Maritime Industry trade show in the Netherlands on June 2.
The new system, known as Streamline-CRP, is an azimuth thruster that incorporates contra-rotating propeller (CRP) technology aimed at improving propulsion efficiency, vessel maneuverability, and onboard comfort. The company said the system was developed for operations where fuel efficiency, emissions reduction, and performance in shallow-water conditions are priorities.
"Customers across the marine industry are demanding solutions that deliver both performance and efficiency," said Bastiaan van Zuijlekom, managing director of Veth Propulsion. "Streamline-CRP responds directly to those needs by combining proven contra-rotating propeller (CRP) technology of precise vessel control and optimal thrust in all directions along with reducing fuel consumption, minimizing noise and vibration, providing a smoother, more efficient operating experience."
According to the company, the propulsion package features a redesigned gearbox that uses combined push-pull technology intended to improve water flow through the unit and reduce resistance. The system also incorporates a slender tail section to reduce drag and optimized propeller hub caps designed to minimize energy losses.
Streamline-CRP will be available in L-drive, Z-drive, and compact integrated thruster configurations, allowing the system to be adapted to a variety of vessel designs. Standard arrangements include a 4/5-blade propeller configuration, with 5/6- and 6/7-blade options available depending on operational requirements.
Additional design features include an integrated flange cover intended to improve protection while creating a smoother hydrodynamic profile. The company said the overall design helps reduce noise and vibration levels while improving propulsion efficiency.
Veth Propulsion said the Streamline-CRP system has demonstrated fuel savings of up to 7% in operational use compared with conventional propulsion arrangements.
