Definition
The phase of flight operations between completing taxi and applying takeoff power, during which the pilot performs the before-takeoff check — a structured sequence of engine run-up, system checks, control checks, and final cockpit setup — to confirm the airplane is airworthy and properly configured for departure.
Plain English
The last set of checks the pilot does after taxiing and before lining up to take off. The airplane is stopped (usually near the runway), and the pilot runs through the checklist to make sure the engine, instruments, controls, and switches are all set correctly for departure.
Context Anchor
Seen in preflight procedures, checklist use, taxi and run-up discussions, and the final pause before entering the runway or beginning departure.
Why Pilots Care
Ensures all systems are configured correctly and any issues are caught before committing to takeoff, directly impacting flight safety.
Intuition Check
Do not read before-takeoff as just any time before flying. In aviation use, it points to the specific final preparation period immediately before departure.
Example Sentence 1
After taxiing to the run-up area, the pilot turned into the wind and began the before-takeoff checklist.
Example Sentence 2
Items on the before-takeoff list include checking the flight controls and setting the mixture.