advanced far infrared search/track

fast infrared search and track

far side (farside, far-side)

far-side rally point / far side rally point

far infrared (FIR)

far infrared equipment

far infrared technique

far-infrared

far-infrared analyzer

far-infrared detector

far-infrared laser

far-infrared line scanner

far-infrared maser

far-infrared observation

far-infrared pointer package

far-infrared radiation

far-infrared surveyor

far-infrared target indicator

far-infrared tracking

heterodyne instrument for far infrared

universal far infrared sensor

infrared search and tracking (IRST)

track crawl search

advanced forward-looking infrared

advanced large-area infrared transducer

advanced unmanned search system

track skirt (track shield)

track while scan / track-while-scan (TWS)

far shore

Federal Aviation Regulation (FAR)

roger so far?

far-out side lobes

far-side radiotelescope