Keretöödhõlmavad kere, talade, gondlite, kapottide, voolundite, aerodünaamiliste pindade (sh rootorite, kuid mitte propellerite ega tiivikute) ja õhusõiduki telikute ning nende lisaseadmete ja juhiste hooldustöid.
On most single-engine aircraft, the engine and nacelle are at the forward end of the fuselage. On multiengine aircraft, engine nacelles are built into the wings or attached to the fuselage at the empennage (tail section).
Regardless of its location, a nacelle contains the engine and accessories, engine mounts, structural members, a firewall, and skin and cowling on the exterior to fare the nacelle to the wind.
