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Biology, 22.07.2019 11:30 dreamdancekay

Why does a helicopter have a tail rotor? 1. the tail rotor is just for decoration. 2. none of these 3. this increases safety if any of the rotors breaks down. 4. this keeps the helicopter from spinning out of control?

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Why does a helicopter have a tail rotor? 1. the tail rotor is just for decoration. 2. none of these...
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