Naval Group manufactured a new-generation propeller via a metal 3D printing process, mounted on a tripartite minehunter.This propeller is 2.5-m in diameter, supported by five 200-kg blades. The ...

The propellers of the world's ships and boats create a constant drone that disrupts ocean life. New propeller designs based on loops could one day quiet that drone and be more fuel efficient. Sharrow ...

Subscribe to our newsletter for the latest sci-tech news updates. SINTEF has now designed and manufactured new measuring equipment for model testing of contra-rotating propellers. This could be good ...

They can weigh up to 150 tons, and it's not uncommon for them to measure nine meters or more in diameter: the ship propellers on huge tankers, container ships and cruise liners are invisible giants.

Airborne Composites has its major clients in the aerospace and defence markets. Combining engineering expertise with a state-of-the-art manufacturing plant, the company develops new products for the ...

Oscar Propulsion Limited and the University of Strathclyde have come up with a way to reduce underwater radiated noise from ship propellers. According to Oscar Propulsion, its patented PressurePores ...

The Kiel University of Applied Sciences (HAW Kiel) has started a research project dedicated to a problem that research has been grappling with for almost 20 years: the low-frequency underwater sound ...