Saluting MTRs and SMARs

摘要

You'd probably expect military training flights inside military operations areas (MOAs). But don't forget about military training routes (MTRs) established below 10,000 feet msl for low-altitude, high-speed (in excess of 250 knots) operations. Depicted by gray lines (light brown on en route low-altitude IFR charts), "IR" routes are flown under instrument flight rules and "VR" routes are flown in accordance with visual flight rules.