When does the cruise or en-route phase commence?
Refer to figure.
The phases of flight are the following:
- Take-off
- Climb
- Cruise
- Descent
- Landing
According to ICAO - Annex 6 - Part III:
- The En-route (cruise) Phase is that part of the flight from the end of the take-off and initial climb phase to the commencement of the approach and landing phase.
Therefore, the en-route (cruise) phase starts after the climb, at the Top of Climb (TOC) and finishes at the Top of Descent (TOD).
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