Black Hawk helicopter’s altimeter may have been inaccurate, pilots may have missed some calls from control tower
A preliminary analysis of the flight data and voice recorder on board a Black Hawk helicopter leading up to the collision ...
See inside Marine One, the soundproof presidential helicopter that can seat 14 people and deploy anti-missile defenses
With a landing zone on the White House lawn, Marine One is often the most convenient way for presidents to get from place to ...