What does QBI stand for?

QBI stands for "Compulsory IFR flight"

How to abbreviate "Compulsory IFR flight"?

"Compulsory IFR flight" can be abbreviated as QBI

What is the meaning of QBI abbreviation?

The meaning of QBI abbreviation is "Compulsory IFR flight"

What does QBI mean?

QBI as abbreviation means "Compulsory IFR flight"