What does OIR stand for?
OIR stands for "Out of Instrument Range"
How to abbreviate "Out of Instrument Range"?
"Out of Instrument Range" can be abbreviated as OIR
What is the meaning of OIR abbreviation?
The meaning of OIR abbreviation is "Out of Instrument Range"
What does OIR mean?
OIR as abbreviation means "Out of Instrument Range"
