abbreviated visual approach slope indicator system (avasis)

visual approach slope indicator system (vasis)

abbreviated visual approach

abbreviated precision approach path indicator (apapi)

visual slope aid

abbreviated preparation of initial data

abbreviated form

abbreviated

abbreviated training

abbreviated uniform

visual approach

visual approach chart

instantaneous vertical speed indicator / instantaneous vertical-speed indicator (IVSI)

precision approach path indicator (papi)

antiaircraft artillery visual cueing system

visual cueing system

visual target acquisition system

computer-generated image visual system

visual airborne target locator system

visual precision fire control system

indicator system

fire extinguishing system indicator disc

back-up hydraulic system failure indicator

continuously variable slope delta (CVSD)

forward slope

front slope

rear slope

reverse slope

reverse slope defense

slope distance

steep slope

glacis slope

forward side slope ground clearance