In the late 1940s and 1950s, the US military wanted an aircraft that could take off like a helicopter but fly fast enough to ...

Last month, a modified Robinson R44 lifted off from Roland-Désourdy Airport in Bromont, Quebec, and completed what may be the most consequential short flight in rotorcraft history. It was the first ...

For future NASA missions to Mars, this new helicopter vehicle will be key to surveying the planet's surface for all sorts of ...