A nacelle (/nəˈsɛl/ nə-SEL) is a streamlined container for aircraft parts such as engines, fuel or equipment.[3] The Arado Ar 234 was one of the first operational jet aircraft with engines mounted in nacelles.Around 2010, General Electric and NASA have developed nacelles with chevron-shaped trailing edges to reduce the engine noise of commercial aircraft, using an experimental Boeing 777 as a test platform.Nacelles can be made fully or partially detachable for holding expendable resources such as fuel and armaments.This can cause issues with directing the needed conduits mounted within the nacelle to connect to the aircraft through such a narrow space.
The development of the
Arado Ar 234
, merging the four nacelles into two