This rigid rotor also have 50% less parts than an articulated rotor. Whereas helicopters like the UH-60 Black Hawk have a hinge offset (the distance between the flapping hinge and the rotor mast, used ...

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 ...

Here’s What You Need to Know: Lockheed-Sikorsky-Boeing engineers, builders and weapons developers of the DEFIANT X have found a way to massively decrease or even remove what’s called “Retreating Blade ...

ATLANTA—Sikorsky is working with Leonardo Helicopters to evaluate its X2 coaxial rigid-rotor compound helicopter technology for application to an emerging Italian Army requirement for a high-speed ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Two very different designs for futuristic flying machines are ...

X2 technology could let a helicopter "cruise comfortably" at 250 knots, much faster than current production models, the company says. But when will it actually fly? Jon Skillings is an editorial ...

Helicopters have won high marks in Viet Nam doing the chores they were designed for: carting supplies, ferrying troops, evacuating wounded. But, decked out with bolt-on guns and rocket launchers, the ...