low flying operation

low flying aircraft / low-flying aircraft

low-flying, low-speed drone

accident-free flying / mishap-free flying

mishap-free flying / accident-free flying

anti-low-flying aircraft missile

terrain-hugging air-breathing low-flying vehicles

authorized low flying

low flying

low-flying targets

low-RCS target / low-radar-cross-section target

low-idle operation

clandestine operation; covert operation

humanitarian operation; humanitarian relief operation (HUMRO)

PZ operation (pick-up zone operation)

noncombatant evacuation operation (NEO); non-combat evacuation operation

flying boat

flying bomb

flying control officer

flying properties

flying squadron

flying wing

non-flying squadron

operational flight/ flying

unidentified flying object (UFO)

with flying colors

nap-of-the-earth (NOE) (ground-hugging / terrain masking / flying under the radar / hedgehopping)

achieve coordination in flying

flying ace goggles

flying command post

flying junction

flying torpedo

mishap- / accident-free flying