BVR

A beyond-visual-range missile or beyond-visual-range air-to-air missile (BVRAAM) is an air-to-air missile with a weapon engagement zone (WEZ) that exceeds the visual field of the pilot. Medium-range, long-range, and very-long-range air-to-air missiles fall under the category of beyond-visual-range missiles. When being operated in BVR capacity, the pilot must rely on the aircraft's radar systems to detect, identify, acquire, and track the target, since the pilot cannot resolve the target visually. BVR range typically begins at around 40 km (22 nmi) and beyond.