IFR MILITARY TRAINING ROUTES (IR)

Routes used by the Department of Defense and associated Reserve and Air Guard units for the purpose of conducting low-altitude navigation and tactical training in both IFR and VFR weather conditions below 10,000 feet MSL at airspeeds in excess of 250 knots IAS.

Listed in the Pilot/Controller Glossary as a cross-reference to IFR MILITARY TRAINING ROUTES (IR), whose text is shown above.

Source FAA Pilot/Controller Glossary↗ · checked 2026-08-25