UAVOS announced that it had completed flight tests of its advanced bearing-less rotor system installed on the UVH 25EL unmanned helicopter. Torsion bar is aimed to provide an effective damping action ...

Like many machines, helicopters can experience malfunctions and other equally dangerous issues. Among these is mast bumping, where the rotor hub pivots so much it hits the mast. If you think this ...

The carbon fiber blades’ rotation almost reached Mach 1. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. NASA recently released a video showing a ...

A U.S. Army AH-64 Apache attack helicopter flies overhead at Bagram Airfield, Afghanistan. (Tech. Sgt. Matt Hecht/U.S. Defense Department) WASHINGTON — Boeing plans to begin testing a full 3D-printed ...

Helicopter rotor systems are central to both civil and military applications, yet they continue to face challenges associated with vibration and noise. These issues not only affect passenger comfort ...

The dynamic behaviour of rotor systems subjected to base motion represents a critical research area in modern engineering. This field investigates how the movements of the support—whether ...

The pilot of the tourist helicopter that crashed into the Hudson River on Thursday afternoon could not have done anything to save himself or his five passengers after the aircraft’s rotor blades and ...