noun which may take the genitive case particle 'no', noun
outside an aircraft; outboard
Technical term used in aviation contexts to refer to the exterior of an aircraft or something located outside the fuselage.
The temperature outside the aircraft can reach minus 50 degrees Celsius.
The pilot checked for abnormalities outside the aircraft.
機内 means inside the aircraft while 機外 means outside the aircraft.
Compound of 機 (aircraft) and 外 (outside).