| 21. | Bats are the only mammals capable of sustaining level flight.
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| 22. | These two facts together mean that under most conditions level flight is anything but.
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| 23. | For the next 80 seconds, the plane maintained level flight.
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| 24. | The usual approach was a low-level flight up a fjord.
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| 25. | Its speed was greater than in level flight ."
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| 26. | The total stall if the pilot attempts to generate enough lift to maintain level flight.
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| 27. | When in level flight, the Camel was markedly tail-heavy.
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| 28. | These changes cost it acceleration and climb rate, though it remained fast in level flight.
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| 29. | The Skystreak reached Mach 0.99 in level flight, but only flew supersonic in a dive.
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| 30. | Without a visible horizon it was extremely difficult to keep the aircraft in level flight.
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