Flight level (FL)
Definition
- A measure of altitude (in hundreds of feet) used by aircraft flying above 18,000 feet with the altimeter set at 29.92 "Hg.
References
- Instrument Procedures Handbook · Federal Aviation Administration · 2017
Flight level (FL)
A measure of altitude (in hundreds of feet) used by aircraft flying above 18,000 feet with the altimeter set at 29.92 "Hg.