An American Airlines passenger jet and an Army helicopter collided on Jan. 29 as the plane prepared to land at Washington, D.

These scenes, once futuristic, are becoming daily realities as China's low-altitude economy transitions from blueprint to ...

The Jan. 29 collision between an Army helicopter and a passenger airplane over the Potomac River in Washington killed 67 ...

“We’ve determined that the existing separation distances between helicopter traffic operating on Route 4 and aircraft landing ...