A boat’s propeller is one of its most crucial components, yet it’s often overlooked until problems arise. Proper maintenance ...

By using two propellers that rotate in opposite directions, a ship can use less energy to move forward. New knowledge means ...

If a worn propeller requires repair, the CO2 footprint will be a full 40 percent lower if the job is done in Norway than if ...

Forget about sharing the road. A bunch of Czech engineers and hobbyists have proposed a flying bicycle that can float above the pavement thanks to a quartet of battery-powered propellers. Using only ...

These strangely-shaped twisted-loop propellers look like a revolutionary (sorry) advance for the aviation and marine sectors. Radically quieter than traditional propellers in both air and water, ...

Solar Impulse 2, the plane powered only by the sun, has dominated the electric aircraft news cycle recently, starting its 5-month, 20,000-mile journey around the world this month. But they're not the ...

Over the past few years, labels such as DJI have pushed drones into the mainstream. If you look closely, you'll notice that a majority of them have four propellers, while helicopters have fewer of ...

Despite being integral to aviation for more than a century, propellers have changed remarkably little since the Wright Brothers. A team at MIT’s Lincoln Lab has developed a new propeller shape that ...