Plain English Meaning
VR207 is the name of a particular military training route that pilots fly using visual flight rules. The 'VR' tells you it's a visual route, and the number '207' tells you which specific route it is — and because the number has three digits, at least part of the route is flown higher than 1,500 feet above the ground.
Full Definition
An identifier for a specific Military Training Route (MTR) flown under Visual Flight Rules (VFR), where the 'VR' prefix indicates a VFR route and '207' is the unique route number assigned by the FAA and the Department of Defense. A three-digit route number (such as 207) indicates that one or more segments of the route are flown above 1,500 feet AGL, while a four-digit number would indicate the entire route is flown at or below 1,500 feet AGL.
Context Anchor
Seen on aeronautical charts and in route information when a civilian pilot’s planned flight path crosses or passes near a Military Training Route.
Derivation
VR' comes from 'Visual Route' — meaning it's flown under Visual Flight Rules. The number is simply the route's catalog identifier. The digit count (three vs. four) is a coding convention used to convey altitude information at a glance.
Why Pilots Care
Civilian pilots must know active VR routes to avoid conflicts with fast low-flying military traffic that may not be talking to air traffic control.
Intuition Check
VR207 is a route name, not a radio frequency, altitude, or waypoint. The number identifies the route; it does not tell you where the aircraft are at any given moment.
Example Sentence 1
During preflight planning, the pilot noticed her route would cross VR207 and checked the Chart Supplement to see when it was scheduled to be active.
Example Sentence 2
VR207 was listed as active on the day’s NOTAMs, so the flight stayed above the route’s altitude block.