| 11. | At the "'upper critical Mach number "', airflow around the entire aircraft is supersonic.
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| 12. | North American conducted this test, their High Mach Number Investigation , on November 13.
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| 13. | At the "'lower critical Mach number "', airflow around the entire aircraft is subsonic.
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| 14. | The actual critical Mach number varies from wing to wing.
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| 15. | At low Mach numbers gliders have such long, narrow wings.
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| 16. | These waves are studied to obtain a relation between deflection angle and Mach number.
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| 17. | The upstream Mach number, M _ 1, begins at 1 and ends at 5.
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| 18. | For low Mach number \ scriptstyle Ma, the drag coefficient is independent of Mach number.
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| 19. | There are also gravity currents with large density variations-the so-called low Mach number compressible flows.
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| 20. | Increasing the nozzle pressure ratio further will not increase the throat Mach number above one.
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