| 21. | There were one-to three-hour delays Thursday along the 3, 500-kilometer ( 2, 175-mile ) ICE system.
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| 22. | The ICE system is a polycentric network.
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| 23. | The C-130 rescue plane underwent equipment outages on its rescue flight, including its anti-icing system and its weather radar.
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| 24. | After the accident, the ATR installed bigger de-icing systems, pneumatic " boots " that inflate to break off ice.
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| 25. | With this revision, the intake de-icing using an integrated de-icing system was proven in the winter months of 1960.
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| 26. | These tests established that the de-icing system worked well for the small droplets specified in the American icing standards.
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| 27. | After engine start the crew activated the anti-ice systems of the engines, but the wing anti-ice systems were not activated.
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| 28. | After engine start the crew activated the anti-ice systems of the engines, but the wing anti-ice systems were not activated.
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| 29. | The airline's hub in Chicago flies ATR's almost exclusively and has not had trouble with the anti-icing system, he said.
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| 30. | The first prototype was later used by Napier & Son at Luton for trials of the firm's inflight de-icing systems.
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