Ahead of its time in performance and design, the Lockheed AH-56 seemed like a promising attack helicopter for the United ...

With all those molecules making up the air, there is lots of stuff that helps hold a parachute up as it falls through the air. Work with your adult partner to measure, draw, and cut out a helicopter ...

The MH-47 also has in-flight refueling capability for long-range insertions. The helicopter can be used for parachute insertion, fast rope insertion and water insertion of special operations troops.

The PMM represents the "heavy tandem" version of this new family of parachutes. "Developed based on an SMT, it will integrate ...

It's more impressive when you consider the fact that the helicopter was just half a meter ... Ian Clark, a Perseverance parachute system engineer, told The New York Times.