All helicopters have two rotors. Some have both rotors on vertical axes but rotating in opposite directions,
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All helicopters have two rotors. Some have both rotors on vertical axes but rotating in opposite directions, and the rest have one rotor on a horizontal axis perpendicular to the helicopter body at the tail. Why is a single rotor never used?
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Solution A single rotor is never used because a helicopter cannot use one rotor t...View the full answer
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