Departure
Take-off clearance
Acknowledge a take-off clearance without ambiguity.
When you use it
Lined up or at the holding point, on Tower frequency.
Example exchange
This is an illustrative example. The required elements matter more than the exact words — ICAO phraseology allows variation, and local procedures can differ.
Required information
- Runway
- CLEARED FOR TAKE-OFF
- Call sign
Expected sequence
- Runway
- Cleared for take-off
- Call sign
Read back
- Runway
- Take-off clearance
Why it works this way
The words TAKE OFF are used only for the take-off clearance and its cancellation; at other times ATC and pilots say DEPARTURE or AIRBORNE (Doc 9432 §2.8.3.3). The runway and the clearance are mandatory read-back items (§2.8.3.5).
Common errors
- Saying “ready for take-off” when reporting ready (use “ready for departure”)
- Reading back the wind but not the runway
References
- ICAO Doc 9432, Manual of Radiotelephony (4th ed., 2007), §4.5 — Take-off procedures
- ICAO Doc 9432, Manual of Radiotelephony (4th ed., 2007), §2.8.3 — Use of the words TAKE OFF; read-back
Practise it: Departure with a conditional clearance
Run the related simulator scenario and get item-by-item feedback on your transmissions.
Open the scenario