The late B.H. Carson’s AIAA paper on “Fuel Efficiency of Small Aircraft” emerged unsought, like a dinosaur bone poking out of ...

Considering that this latter company claims a performance uplift over regular boat propellers, the next steps for [Daniel] would appear to involve some careful navigating between fluid dynamic ...

Traditional Gori propellers fold automatically when the engine is off to reduce drag, but they were not optimized to spin freely and generate electricity. The Hybrid Propeller solves this problem ...

Researchers have developed an innovative propeller system ... and from an energy efficiency perspective.” Maritime transportation is vital to global trade, handling over 90 percent of goods ...

The fin-powered drone could revolutionize deep-sea exploration, offering improved efficiency over current ... propellers. However, thunniform swimmers struggle with slow-speed maneuvering and ...

For boats, a propeller used for propulsion can either interact with the water or the air through which the boat is moving. Both modes have been used with the air propeller being favored for high speed ...