twin engine aircraft

engine capacity / engine power, engine output

twin

twin-barrelled

twin-mount

twin detonating fuse

cam and twin lever

coupled twin engines

dual spacing of twin tires

twin-spool compressor

dual rotors / twin rotors

tandem-rotor helicopter (twin rotors mounted longitudinally)

twin electronic booster

twin rotors / dual rotors

twin temperature indicator

reaction engine / motor (jet engine)

rotary engine (Wankel engine)

engine ground run / engine test

engine oil reservoir / engine oil tank

airbreathing jet engine / ducted jet engine

single-engine aircraft

action plan on aircraft engine emissions

aircraft engine emission

aircraft turboshaft engine

training aircraft (tng acft) / trainer aircraft

aircraft accident (flight accident; aircraft mishap)

aircraft armaments / aircraft weapons

aircraft accident / flight accident, aircraft mishap

aircraft mishap / flight accident, aircraft accident

aircraft modernization / aircraft upgrade

aircraft track and balance (adjusting balance of aircraft)

aircraft upgrade / aircraft modernization

aircraft weapons / aircraft armaments