flight-line service

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

flight restriction zone / flight restricted zone (FRZ)

off-line charter flight

flight line

flight-line inspector coordinator

side cap; garrison / flight cap (US); wedge cap (Canada); field service cap (UK)

operational flight information service

aerodrome flight information service

flight envelope / performance envelope / service envelope

service flight envelope

observer-target line (OT line)

scheme trail line (tag line)

branch (military/service branch, armed service)

separate from active service / the service

Y service (Y-service) / Y-station

regional meteorological service/ regional weather service (RWS)

emergency service / emergency operations service

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

angled flight deck

assigned flight level

canted flight deck

contact flight

current flight plan (CPL)

Driven Ammunition, Reduced Time of flight (DART)

flight control

flight data processing (FDP)

flight gear

flight information centre

flight information region (FIR)

flight lieutenant (Flt Lt)

flight mission

flight path