sight line autopilot (SLAP)

autopilot control

autopilot servo unit

autopilot operation

autopilot coupler

autopilot

versatile drone autopilot

light test maneuver autopilot

deployment line; line of deployment (LD); line of departure

front sight (fore / muzzle sight)

sight, to take a (careful) sight

day-sight (day sight)

modular integrated display and sight helmet (Modular Integrated Display-And-Sight Helmet)

beyond line-of-sight (BLOS)

line of sight (missile)

non-line-of sight (NLOS)

align sight line

infrared sight-line control (ISC)

reciprocal sight line

sight line

sight line spin

target sight line

manual command to line of sight (MCLOS)

dependent line of sight

final line of sight

semiautomatic command to line-of-sight (SACLOS)

semiautomatic command-to-line-of-sight missile

line-of-sight radar

line-of-sight radio-relay system

beyond radio line of sight

electronic countermeasure-resistant digital line-of-sight radio

line-of-sight microwave radio relay system

line-of-sight radio relay link