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 ...

It’s a rare occasion when a piece of engineering transcends its pure industrial function and becomes art. And it’s even rarer when that metamorphosis is the byproduct of a quest for better performance ...

When comparing the efficiency of different wind turbine blade designs, [AdamEnt] found using a hair dryer wasn’t the best tool for the job. Enter his new 3D-printed wind tunnel. After several ...

Europe has recently voiced very high ambitions for reducing Aircraft community noise, with the Advisory Council for Aviation Research and Innovation in Europe (ACARE) pushing for a 65% noise reduction ...

The high-efficiency aerodynamic and aeroacoustic optimization framework comprises the following key modules: 1) Shape parameterization, which transforms the baseline geometry into a set of design ...

This paper by TSAW Drones discusses the need for less noise in UAVs, how these toroidals can benefit the drone industry, how these propellers came to be and how exactly they reduce the noise. Also, in ...

Distributed ducted propellers show immense potential for low-altitude aircraft, but the vast number of possible designs complicates standardized analysis. This research introduces a novel equivalent ...

Collins Aerospace says the eight-blade NP2000 composite propellers on the Lockheed Martin C-130H enable more traction for a given propeller diameter. Credit: Collins Aerospace Propeller manufacturers ...

DETROIT--(BUSINESS WIRE)--Sharrow Marine announced today a new supply agreement between Sharrow Marine and Yamaha Marine Precision Propellers (YPPI). The terms of the agreement allow Sharrow Marine to ...