Downloaded from https://www.everyspec.com MIL-STD-1808C w/CHANGE 1 SYSTEM SUB-SYSTEM TITLE DEFINITION 53 FUSELAGE The subsystem components and structural members that make up compartments for equipment, passengers, flight crew, and cargo, including the envelope and gondola of airships. Includes skin, belt frames, stringers, floor beams, floor, pressure dome, scuppers, tail cone, fuselage to wing and empennage fillets, fittings, load curtain, cables, ballonets, etc. Also includes structural and removable pylons used for the carriage of external stores other than weapons (see System 94, WEAPON SYSTEM).
00 GENERAL 10 MAIN FRAME The portion of the system that includes the primary skeleton of the fuselage. Includes frames, bulkheads, formers, longerons, stringers, keel, frames around openings, etc. 20 AUXILIARY STRUCTURE The portion of the system that includes the secondary structure of the fuselage. Includes floors, internal stairs and fixed partitions. Does not include movable partitions (see System 25, EQUIPMENT/FURNISHING). 30 PLATES/SKIN The portion of the system that includes the exterior covering of the fuselage including doublers and access covers not covered in System 52, DOORS.
40 ATTACH FITTINGS The portion of the system that includes the fittings on the fuselage used for the attachment of doors, wings, stabilizers, landing gear, engine and rotor pylons, and for the support of equipment within the fuselage. Includes seat tracks, cargo basket rails, instrument brackets, etc. 50 AERODYNAMIC FAIRINGS The portion of the system used for fixed or variable aerodynamic fairings such as those on the nose and tail, and between the fuselage and wing and stabilizers. Includes wing and fuselage fillets, nose and tail cones, radome, visor, and droop nose, etc.
Does not include the functioning and maintenance aspects of variable aerodynamic fairings (see System 27, FLIGHT CONTROL). 63