Precision Approach Radar (PAR) 3 : Radar providing positive position of aircraft in range, azimuth, and altitude, permitting the controller to accurately guide aircraft to touchdown on runway
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}