| 21. | The restrictions give the pilot time to find a landing zone.
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| 22. | They also identify landing zones for troops and drop zones for parachute-borne supplies.
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| 23. | Landing zones require stabilization of dust and snow to avoid blinding helicopter pilots.
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| 24. | Three broad ditches lay between the landing zone and the fort.
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| 25. | From that landing zone, they moved northeast and relieved the two besieged trenchworks.
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| 26. | Troops then assault a beach and landing zone while this live fire occurs.
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| 27. | The Argentine base was flooded except for a helicopter landing zone on higher ground.
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| 28. | :A strong wind blows a parachuting skydiver off course from his intended landing zone.
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| 29. | Blackhawk and Chinook helicopters began ferrying additional troops into the landing zone, Gatlin said.
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| 30. | The Argentinean base was flooded except for a helicopter landing zone on higher ground.
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