Downloaded from https://www.everyspec.com MIL-STD-1808C w/CHANGE 1 SYSTEM SUB-SYSTEM TITLE DEFINITION 66 FOLDING BLADES/PYLON The subsystem components that provide automatic or manual folding and spreading of the rotor blades and tail pylon. NOTE: Such rigging also affects the components described in other systems. 00 GENERAL 10 ROTOR BLADES The portion of the system providing rotor blade folding and spreading. Includes the mechanical, hydraulic, and electrical components permanently fitted on the aircraft. 20 TAIL PYLON The portion of the system providing tail pylon folding and spreading. Includes mechanical, hydraulic, and electrical components permanently fitted on the aircraft.
30 CONTROLS AND INDICATING The portion of the system that controls the folding/spreading sequences and for indicating system operation. Includes the control units, caption lights, indicators, wiring, etc. 75