air-gap / air wal

constricted air gap spark plug

clear / cut a gap

exploit a gap

fill / plug the gap

gap marker

gap-filler radar

hasty gap crossing

seal the gap

secure a gap

time gap

gap crossing operation

gap wind

lighting gap

gap filling

gap-filling radar

spark-gap anti-TR tube

spark-gap TR tube

spark-gap transmit-receive tube

spark-gap tube

gap

close the gap

column gap

time-gap of column

slat gap

armor gap

detection gap

GIUK gap (G-I-UK, Greenland, Iceland, and the United Kingdom)

Fulda Gap (нім. Fulda-Lücke)

aerial refueling / air refueling / in-flight refueling (IFR) / air-to-air refueling (AAR)

air combat capable helicopter / air-to-air capable helicopter

air support field pack, field pack air support, airborne / para (air support) / Pathfinder Bergen

advanced medium range air-to-air missile (AMRAAM)