The noise of the receiver in the cockpit:
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Twin-screw airplane jammed
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Turboprop aircraft taxiing to the runway
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Single-rotor aircraft starts, jammed
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Twin-screw airplane takes off
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A single-rotor aircraft travels slowly,
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Single-rotor aircraft lands
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Twin-screw aircraft starts
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Twin-screw plane takes off
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Single-rotor fighter maneuvers
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Single-rotor aircraft starting, waiting
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Passenger airplane in flight
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Single-rotor aircraft takes off
★★★★★