Bifrost Thrust Rudder
Up to 25% improved propulsion efficiency.
More thrust from your propeller
Vessels with nozzles aren’t built for speed, but for power. But a lot of energy from the propeller remains in the rotating water flow, energy that doesn’t create thrust.
The Bifrost Thrust Rudder converts the rotating propeller wake into a straighter flow that provides higher thrust.
Increase bollard pull or reduce fuel use. Better performance, lower fuel costs and fewer emissions; without changing the whole propulsion system.
Thrust Rudder Impact
Increase propulsion efficiency to increase bollard pull, or reduce fuel consumption:
Meeting Global Standards
As maritime regulations and society demands become more stringent, our thrust rudder provides a solution to comply by improving your operational efficiency and margins.
- IMO 2030 & 2050 Targets
- Energy Efficiency Design Index (EEDI)
- EU Emissions Trading System
On a 2000 hp vessel:
230 tons
of CO2 saved annually
72.000 liters
Average annual liters of fuel saved
A trawler that is 40% of the time in transit between port and fishing grounds, and 60% at work speed would see an average of 12% reduction of the annual fuel consumption.
Include the Bifrost thrust rudder in newbuilds and retrofit your existing fleet.
For vessels that need thrust such as trawlers, tugboats, workboats and other cargo vessels.
Get in touch for the technical details and discussing your use case.
Technical Background
The Bifrost Tug Thrust Rudder increases propeller thrust, that you can use to increase bollard pull, or reduce fuel consumption:
Validated by
Thrust Rudder Prototype
The tugboat Daafjord mounted the prototype of the thrust rudder system to improve efficiency especially under towing.
Tugboat Daafjord, operated by Sea Tug AS in the Ålesund area. Note both horizontal and vertical control surfaces.
The small 8m tugboat has a 500hp engine and 8,5t bollard pull. But because of our solution, it can tow bigger loads.
More competitive and greener service compared to bigger tugboats that are more expensive to run.
Improvement under towing
The Bifrost Tug thrust rudder provides an additional benefit to vessels that tow with short and moderate towline separation. It redirects the waterflow from the propeller efficiently while towing, which increases bollard pull capacity.
Active Thrust System
More thrust is available to increase bollard pull or reduce fuel consumption.
Conventional Rudder
Partners
