About This File
FS2004 Radio Altimeter/Drift Instrument (RADI). This mechanical gauge shows low altitude and wind drift information in an analog display. It presents this important landing data in a precise and readable manner. Altitude range: 0-1000 feet. Below 100 feet, the altitude needle is accurate to within one foot. Drift angles: 0 - 30 degrees left/right. This gauge will assist with landing all types of aircraft, but in helicopters it also facilitates hovering and taxiing. By Glenn Copeland.