Helicopter approaching and hovering:
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Helicopter takes off
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Helicopter Warning System
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Helicopter expects jammed
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Helicopter whirls, flies past several times
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Helicopter flies slowly
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A helicopter approaches, lands and flies away
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Helicopter flies away
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Helicopter shuts down
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Helicopter flies (fast)
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Helicopter flies
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Unfastening the seat belt in a, Fastening
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Helicopter engine malfunction signal
★★★★★