nacelle

noun

1. the enclosed part of an airplane, dirigible, etc., in which the engine is housed or in which cargo or passengers are carried.
2. the car of a balloon.

noun

1. a streamlined enclosure on an aircraft, not part of the fuselage, to accommodate an engine, passengers, crew, etc

n.late 15c., “small boat,” from Old French nacele “little boat, bark, skiff” (12c., Modern French nacelle), from Vulgar Latin *naucella, from Late Latin navicella “a little ship,” diminutive of navis “ship” (see naval). Meaning “gondola of an airship” is from 1901; extended to “cockpit of an aircraft” by 1914; later transferred to other similar housings and structures.