Add Yahoo as a preferred source to see more of our stories on Google. National Transportation Safety Board Chairwoman Jennifer Homendy, on monitor left, swears-in the witnesses from left: Dan Cooper, ...

The Army helicopter that collided with an American Airlines passenger plane near Ronald Reagan National Airport on Wednesday, likely killing all 67 people aboard both aircraft, was the result of an ...

The Army Black Hawk helicopter involved in the fatal midair collision near Reagan National Airport last week had an advanced tracking system turned off at the time of the incident, according to Sen.

The US Army recently released video of the battlefield seen through its new night vision goggles. The ENVG-B lets soldiers see in the dark and connects with other systems for better shooting. The next ...

The pilots of a U.S. Army helicopter that collided with a passenger jet over Washington in January would’ve had difficulty spotting the plane while wearing night vision goggles, experts told the ...