Downloaded from https://www.everyspec.com MIL-STD-1808B SYSTEM SUB-SYSTEM TITLE DEFINITION 64 TAIL ROTOR The subsystem components providing yaw control by rotating in a plane nearly parallel to the symmetry plane and delivering a thrust opposing the main rotor torque. Includes the rotor blades and rotor head. Does not include the rotor antiicing system (see System 30, ICE AND RAIN PROTECTION). 00 GENERAL 10 ROTOR BLADES The portion of the system that forms the blade assemblies, including the heating mats (electrical resistors) for anti-icing. 20 ROTOR HEADThe portion of the system that forms the tail rotor head. NOTE: For an integral unit, only one subsystem (10 or 20) is required.
30 UNASSIGNED 40 INDICATING The portion of the system that indicates operation or activation of rotor systems. Includes lights, gauges, switches, wiring, etc. 70