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MACH NUMBER

Pilot/Controller Glossary with JO 7110.65BB, Change 3, effective July 9, 2026 · Official text on faa.gov

The ratio of true airspeed to the speed of sound; e.g., MACH .82, MACH 1.6.

See AIRSPEED.

In the 7110.65

Used in 13 paragraphs of JO 7110.65BB.

  1. 1-2-6Abbreviations
  2. 2-3-3Oceanic Data Entries
  3. 2-4-17Numbers Usage
  4. 4-2-1Clearance Items
  5. 5-4-10En Route Fourth Line Data Block Usage
  6. 5-7-1Application
  7. 5-7-3Speed Assignments
  8. 8-3-3Mach Number Technique
  9. 8-7-3Longitudinal Separation
  10. 8-8-3Longitudinal Separation
  11. 8-9-3Longitudinal Separation
  12. 8-10-3Longitudinal Separation
  13. 13-2-3Information Management