air engine

engine capacity / engine power, engine output

reaction engine / motor (jet engine)

rotary engine (Wankel engine)

engine ground run / engine test

engine oil reservoir / engine oil tank

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

air-breathing jet engine

engine air intake tube

air-stream engine

waterproof air-cooled engine

diesel engine with air cell

Vee-form air-cooled engine

air breathing engine

air-feed jet engine

compressorless air-breathing jet engine

engine air bleed system

laser air-jet engine

ram air-breathing jet engine

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

air force air request net

Air Force tactical air direction net

air interdiction (AI), deep air support (DAS)

Air Mobility Command’s air assets

air operations syn. air warfare

air-to-air combat

air-to-air guided missile (AAM)

air-to-air missile

air-to-air refuelling (AAR)

United States Air Force / US Air Force (USAF)

air-gap / air wal