Flight attendant call signal:
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Single-rotor aircraft will not start
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Twin-screw plane flies high
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Turboprop aircraft takes off
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Single-rotor aircraft lands (plane,landing)
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Engine noise, Jet plane stands on the ground
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The noise of the receiver in the cockpit
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Passenger plane taxiing to the terminal,
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Twin screw plane lands
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The landing gear tires rub on asphalt
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A single-rotor aircraft flies past (fast)
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A single-rotor aircraft starts, leaves for
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Twin-screw aircraft awaiting
★★★★★