Aviation abbreviation
IFR military training route
IR
At a glance
Meaning of IFR military training route
IR stands for IFR military training route in FAA terminology.
More about IFR military training route
This abbreviation is used in aviation weather. The English reference lists IFR military training route with the abbreviation IR.
FAA abbreviations reflect US aviation usage. Their meaning and permitted use can differ in documents from other countries.