Definition
A category of unmanned aircraft (drone) operation in which the remote pilot, or a designated visual observer, cannot directly see the aircraft with the unaided eye throughout the flight. BVLOS operations rely on onboard cameras, telemetry, detect-and-avoid systems, and other technical means to maintain situational awareness and separation from other aircraft and obstacles. In the United States, BVLOS flights generally require specific FAA authorization or a waiver, as standard small drone rules under 14 CFR Part 107 require the aircraft to remain within visual line of sight.
Plain English
A drone flight where the person controlling it cannot actually see the drone with their own eyes, and instead relies on cameras and instruments to know where it is and what is around it.
Context Anchor
Seen in drone operations, remote pilot rules, waiver discussions, and mission planning for flights that go farther than the pilot can directly see.
Derivation
Combines the everyday sense of 'beyond' meaning outside or past a limit with 'visual line of sight,' an aviation and military term for direct unaided observation; the combination specifies the regulatory boundary where visual contact is lost.
Why Pilots Care
BVLOS flights allow extended missions such as pipeline inspection or search operations but require FAA waivers and stricter risk mitigation.
Intuition Check
Do not read this as just “far away.” The key point is whether the pilot can maintain direct visual contact with the aircraft well enough to control the flight safely and avoid hazards.
Example Sentence 1
The survey company applied for an FAA waiver to conduct BVLOS operations along a 40-mile stretch of pipeline.
Example Sentence 2
Beyond visual line of sight operations demand constant tracking through telemetry and spotters.