Helicopters can be as dangerous as they are valuable, in part because of a phenomenon called rotor wash. What is rotor wash, ...

As a powered rotor spins, it generates torque in the opposite direction of rotation; if the rotor spins counterclockwise, the body wants to spin clockwise. Many helicopters use tail rotors to ...

Despite being completely different types of aircrafts, it's common to wonder if helicopters are powered by jet engines ...

Ingenuity, NASA’s groundbreaking Mars helicopter, has captivated space enthusiasts around the globe,but one crucial limitation remains: it can’t fly at night. In this video, we explore why Ingenuity, ...

He was then struck in the head by the high-speed rotor blade. The pilot of the helicopter and fellow passengers ... why the passengers were allowed to exit while the rotors were still spinning.

The tourist helicopter that crashed into the Hudson River on Thursday afternoon appears to have fallen victim to a well-known hazard known as “mast bumping,” according to aviation experts.

The main rotor of the doomed helicopter that crashed into the Hudson River was finally recovered Monday -- as investigators continue to probe what caused the deadly tragedy.

With most helicopters, when they try to go fast, the top rotor blades spin rapidly, encountering significant drag, as well as another aerodynamic issue called retreating blade stall.

The Brief. Six people died when a helicopter crashed into the Hudson River Thursday afternoon. One aviation expert says that the entire rotor assembly may have come off, causing the crash.

But what I can tell you is the tail rotor is what keeps the helicopter from spinning out of control. That's your anchor, so to speak, that keeps the helicopter from being a top," he said.

Ingenuity — a roughly 4-pound (1.8 kilograms) robotic helicopter first deployed to Mars in 2021 — sustained fatal rotor damage at the end of its 72nd flight over the Red Planet, when it ...