Light Gun 2 : An intense, narrowly focused spotlight with which a green, red or white signal may be directed at any selected airplane in the traffic on or about an airport. Usually used in control towers
Ilan Kelman (ed.), Vulnerability and Resilience Definitions and References, Version 2, 2007. http://www.islandvulnerability.org/docs/vulnres.pd f, (Vulnr and Resilience - Brit) {524}