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 ...

Helicopters stand among the many reasons why aviation is as important as it is today. These aircraft occupy various niches worldwide, ranging from extensive military applications, such as helicopters ...

Lockheed Martin‘s (NYSE: LMT) Sikorsky subsidiary will maintain and overhaul the main rotor blade of Black Hawk helicopters for the U.S. Army under a five-year, $116.5 million contract. Army ...

Helicopters regularly have to get their rotor blades inspected, so they can be replaced if they're wearing out. Using the BladeSense system, however, the aircraft would be able to monitor the ...

FORT RUCKER, Ala. -- Before turbine engines took over the world of rotor-wing Aviation, a proof-of-concept system revolutionized helicopter flight with a radical new rotor design. The Lockheed CL-475 ...

An artist's rendering of Boeing's submission for the Army's Future Attack Reconnaissance Aircraft competition is seen here. (Boeing) WASHINGTON — After dropping a brief teaser trailer several weeks ...

Ordinarily on a helicopter, the main (top) rotor is mechanically linked to the tail rotor, so the spinning of the former causes the latter to do likewise. An experimental new system replaces the tail ...

The Kamov Ka-27 is a shipborne helicopter built for anti-submarine warfare and maritime operations. Its distinctive coaxial ...

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 fundamental design principles behind rotary-wing aircraft date back to the Renaissance, with some of the earliest-known designs belonging to Leonardo da Vinci. Naturally, technology has ...