Specially shaped helicopter rotor blades with a kink at the outer part make it possible to reduce the radiating annoying rotor noise [1]. Against this background, the aeroelastic behaviour together ...

FORT RUCKER, Ala. -- Today's modern helicopter fleet is a testament to the evolution of the aircraft that came before, and one helicopter proved that experimentation is a necessary process in that ...

Hill Helicopters engineered composite main rotor blades using a novel single-cure manufacturing process for stiffness and ...

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 ...

The last of the five competing teams to unveil its design, Boeing has revealed it is offering a thrust-compounded helicopter for the U.S. Army’s Future Attack Reconnaissance Aircraft (FARA) program.

A test pilot gave viewers insight into the flying experience and X2 Technology capabilities of the Sikorsky-Boeing SB>1 Defiant during an Oct. 14 Association of the United States Army (AUSA) webcast ...

The Aviationist was among the outlets invited to attend a demonstration event of the X2 technology at the Sikorsky Development Flight Center. Here’s how it went. After the U.S. Army's FARA program was ...

A friend of mine says he’s seen a helicopter loop the loop at an air show. Is it really possible? And if it is, how? • In theory, most helicopters can perform a loop. With enough speed and distance ...