Considering the UK gets a flash in the pan heatwave in the summer an air con unit is not a worthy investment, so we suffer in silence – but not anymore. Seems like we’re not the only ones desperately ...

The best window fans provide an energy-efficient way to cool and ventilate your home. See our top reversible, smart and dual picks.

MIT recently announced its research on toroidal propellers to create quieter drones. That got [Major Hardware] thinking about noisy PC fans. The obvious solution was to adapt the toroidal shape for… ...

DETROIT-- (BUSINESS WIRE)--Today, Sharrow Marine, the industry leader in high-performance propeller design, announced that the Sharrow MX™ Propeller was selected as one of TIME's Best Inventions ...

Removing the housing allows the fan to be bigger still. A fan rather than a propeller (as on a turboprop aircraft) is used because aerodynamic effects cause propellers to lose efficiency at high ...

The best propeller-hull combination was tested for its performance by model scale tests: a 7.5% power reduction at the design speed was identified and the shaft rate of revolutions did not change.

Textron Inc.’s McCauley Propeller Systems is supplying a new, “lightweight, scimitar-blade design propeller” for Beechcraft King Air B300 series twin turbo-prop aircraft. The 105-inch propeller ...

A new machined boat propeller promises impressive increases in speed and fuel efficiency for everything from bass boats to tanker ships.

Greenheck’s Model AER sidewall fan is a direct-drive fan with a cast aluminum propeller. The AER model is available in four sizes: 20, 24, 30 and 36 inches.

The Propeller Is Making a Comeback in The Pursuit of Greener Air Travel The propeller is central to a radical new engine design as the aviation industry tries to innovate its way out of fossil-fuel ...