This can get so unbalanced that it threatens to tip the helicopter over altogether if you don't stay beneath a defined maximum airspeed. Sikorsky's technology puts two main rotors on top of each ...

Picture a helicopter ... be catastrophic for the craft. These rotors are made from composite material, and have no flex to them, according to Boeing and Sikorsky. And not surprisingly, the ...

This means it has two rotors that turn in opposite directions on a central mast. Along with pusher propeller, the vehicle can travel much faster than ordinary helicopters. Sikorsky anticipates the ...

At press time Sikorsky had yet to set a flight ... New Civilian UAVs Guard the Border and Track Hurricanes * Dual Rotors: Single-rotor helicopters tend to roll at high speeds as their retreating ...

The aircraft also executed 30 transitions between helicopter and airplane ... showcase hover capabilities in 2027. "Sikorsky ...

And a version of dual-rotor aircraft is competing ... a large rear propeller that replaces the tail rotor found on conventional helicopters. Sikorsky-Boeing officials said the new aircraft design ...

Fresh off the inaugural flight of the S-76D helicopter on Feb. 7, Sikorsky Aircraft Corp. today ... flaw-tolerant main rotor blades; an advanced Thales avionics system and autopilot; dual speed rotor ...

But any resentment about Sikorsky’s decision ... Palm Beach vanishes as the helicopter’s 2,600-horsepower turbine engine spools and the dual, counterrotating rotors above the fuselage start ...

A prototype powered by the “rotor blown wing” successfully completed more than 40 take-offs and landings, according to the company, and performed 30 transitions between helicopter and airplane ...

A hybrid-electric power system testbed is being built A medium helicopter ... that powers Sikorsky-developed 500-kW motors and power electronics driving the dual rotors. Sikorsky plans to power ...

Sikorsky on Monday detailed recent successful demonstrations with its “rotor blown wing” unmanned aircraft system (UAS), flying its prototype in both helicopter and “winged aircraft” mode ...