title: Analog visibility computer.
abstract: A simple, inexpensive, all solid-state analog computer has been developed for calculating the visual range. Using an input signal from a transmissometer, the computer calculates the visual range by repeatedly solving the Allard and Koshmieder visibility laws. It is accurate to +/-2.0% for visual ranges of between 500 ft (150 m) and 5000 ft (1500 m).
authors.forename: J L
authors.initials: JL
authors.lastname: Horner