Plain English Meaning

VR1207 is the name of one specific military training route. The 'VR' part means the military flies it using visual flight rules, and the '1207' is just the route number. The four digits also tell you the route includes flying higher than 1,500 feet above the ground at some point.

Full Definition

An example identifier for a specific Military Training Route (MTR) flown under Visual Flight Rules (VFR). The 'VR' prefix indicates the route is operated under VFR by military aircraft, and the four-digit number '1207' identifies that particular published route. Because the number contains four digits, this route includes one or more segments flown above 1,500 feet AGL.

Context Anchor

You may see VR1207 printed along a military training route on a sectional chart or in route information when planning a flight.

Derivation

The 'VR' stands for 'VFR Route.' The numbering convention is set by the and : three digits means the entire route stays at or below 1,500 feet AGL, while four digits means at least part of the route goes above 1,500 feet AGL. So 'VR1207' is read as 'a VFR military training route, number 1207, with segments above 1,500 feet AGL.'