After a military helicopter collided with a passenger plane near Reagan National Airport, here’s what to know about TCAS, a ...

With its latest VX4 prototype now making steady flight-test progress, and a more favourable funding position secured, the UK ...

There's still a lot we don't know and initial speculation from the media and the president about the causes of Wednesday's ...

Police boats combed the banks of the Potomac River on Friday, moving slowly under rainy skies and scanning the shoreline as ...

In a third incident, two military helicopters got too close together, an air traffic controller reported. And just a day before the fatal collision, another flight approaching Reagan was forced to ...

Washington has some of the most restrictive air space in the country, and helicopters are supposed to stay below 200 feet as a way to separate them from fixed-wing planes. The issue of where the ...

Military helicopter flights forced at least two planes to abort landings at Reagan National Airport in the week before a deadly collision presumably killed 67 people on Wednesday, according to a ...

The recovery effort after a midair collision in Washington, D.C. continued Friday with officials confirming the recovery of ...

The American Airlines plane and an Army helicopter collided as the plane was landing Wednesday night at Ronald Reagan ...