This is a quick and easy tutorial: flight levels. I haven’t seen a tutorial on this, made most of you know, but maybe some of you don’t.
Note: Flight levels start up use at 18,000ft.
A flight level is expressed as a 3 digit number referring to “thousands” in feet. It always ends on a 0 or a 5, and when someone says “Descend/Climb and maintain FL110”, they mean “Descend/Climb and maintain 11,000ft.”.
In ATC communications, “FLXXX” will mean "Flight Level (Number) (Number) (Number). Here’s an example, FL240 will be pronounced as “Flight Level (Two) (Four) (Zero).”
If the flight level has two digits (Example: FL020), FL020 will be the same as 2,000ft.
Example: “Descend/Climb and maintain FL050” is the same as “Descend/Climb and maintain 5,000ft.”
That’s about all, I hope you guys learned something new and I wish you all a great day!