In 1923, Spanish engineer Juan de la Cierva came up with a rather revolutionary idea: an aircraft that could use an unpowered ...

Dietrick, a Bell helicopter ... no question," Amico said in regard to the April 26 Airworthiness Directive. If it were his client, Goldman said he would ask for a close examination of the tail ...

All three crew members on board survived, and no one on the ground was injured. There's been a lot of speculation surrounding the helicopter's tail rotor as a possible failure that could have ...

Now the maker of the experimental personal aviation craft, the European start-up e-volo, is back with a revised "volocopter" design that adds two more rotors, a serial hybrid drive and long-term plans ...

From an engineering standpoint, the Flettner used intermeshing rotors (two rotors that turn in opposite directions), which negated the need for a tail rotor ... a helicopter with dual main ...

and the tail boom which includes the tail rotor. Debris from the helicopter was found submerged in the water but also floating on the surface of the river and on a rooftop near the Hoboken ...

Videos posted on social media showed the rotor blades and part of the aircraft’s tail falling ... of New York Helicopter, Michael Roth, said last week that he had no information about what ...

On Saturday night, the NTSB said the helicopter that crashed was not equipped with any flight recorders. The agency added, "no onboard video ... including the rotor and tail rotor, are still ...

On Saturday night, the NTSB said the helicopter that crashed was not equipped with any flight recorders. The agency added, "no onboard video ... including the rotor and tail rotor, are still ...