FS21 - What does FS21 stand for? The Free Dictionary
References in periodicals archive
Speaking of the computer age, one promise of the FS21
system that LM would create an Internet portal where pilots and briefers could look at the same screens while they gave briefings.
We asked LM's FS21
transition chief, Ron Petro if they thought things were better off for pilots today.
A planned software upgrade to FS21
caused the Flight Service Station main computer system to crash in March.