Department of Defense MIL-STD-1808B — MIL-STD-1808B System Subsystem Sub-Subsystem Numbering Standard PDF

Downloaded from https://www.everyspec.com MIL-STD-1808B SYSTEM SUB-SYSTEM TITLE DEFINITION 32 LANDING GEAR The subsystem components that furnish a means of supporting and steering the aircraft on the ground or water, and make it possible to retract and store the landing gear in flight. Includes tail skid assembly, arresting hooks, drag chutes, brakes, wheels, floats, skids, skis, doors, shock struts, tires, linkages, position indicating, and warning systems. Also includes the functioning and maintenance aspects of the landing gear doors. Does not include the structure (see System 52, DOORS).

00 GENERAL 10 MAIN GEAR AND DOORS The portion of the system that provides the major support for the aircraft while on the ground. Includes shock struts, bogie axles, drag struts, doors, linkages, attach bolts, etc. 20 NOSE GEAR AND DOORS The portion of the system that supports the nose of the aircraft while the aircraft is on the ground. Includes shock struts, drag struts, doors, linkages, attach bolts, etc. 30 EXTENSION AND RETRACTION The portion of the system used to extend and retract the landing gear, and open and close the landing gear doors. Includes actuating mechanisms, bogie trim, bungees, up and down latches, operating controls, valves, motors, cables, wiring, plumbing, etc.

40 WHEELS AND BRAKES The portion of the system that provides for rolling and stopping the aircraft while on the ground and stopping wheel rotation after retraction. Includes bearings, tires, valves, de- boosters, swivel glands, anti-skid devices, pressure indicators, plumbing, etc. 50 STEERING The portion of the system used to control the direction of movement of the aircraft on the ground. Includes actuating cylinders, controls, bogie swivel unlock, etc. 37