Aero-Terms are designed to be a daily reminder of the terms,
names, acronyms and explanations of the unique language that
populates the aviation world. Aerospace, sport aviation, fixed
wing, helo, you name it... it's all fair game.
Aero-Terms should serve as a quick but intriguing reminder of
the terms you may use every day, or an introduction to an aspects
of the Aero-World you may not yet be familiar with. ANN also
encourages readers to go beyond the FMI link, and further research
any intriguing terms.
It is the maximum distance at which the runway, or the specified
lights or markers delineating it, can be seen from a position above
a specified point on its center line. This value is normally
determined by visibility sensors located alongside and higher than
the center line of the runway. RVR is calculated from visibility,
ambient light level, and runway light intensity.