Overview:
What the wings of a plane and the rotor of a helicopter have in common, how the rotor lifts the helicopter off the ground from a standing position, how a helicopter changes direction, and what a helicopter is more difficult to control than an airplane.
Genre : -
Actors : Michael Kinney, Chris Robinson
Release Date : 2000-12-17
Duration : 30 menit
Rating : ⭐ 0/10 (0 votes)
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