Discover how golf ball dimples could change propeller design, boosting efficiency and sustainability in aviation, marine & ...

Have you ever noticed that military and recreational drones have four propellers, but helicopters have three? Here's ...

When you picture a propeller-driven aircraft, you probably imagine a single engine plane with the propeller spinning at the front. There's a good reason for that, as the front-facing design has ...

Half-breed: Piasecki Aircraft has taken a Sikorsky helicopter and bolted on airplane hardware — a propeller (ducted) and a fixed wing — hoping the resulting X-49A SpeedHawk (top) will bust ...