Accession Number : AD0645759

Title :   APPLICATION OF FLUIDICS TO AUTOMATIC FLIGHT CONTROL

Descriptive Note : Final rept.

Corporate Author : BOWLES ENGINEERING CORP SILVER SPRING MD

Personal Author(s) : Dexter, E M ; Wills, S D ; DiCamillo, C V ; Kaufman, L A ; Van Dusen, C

PDF Url : AD0645759

Report Date : Sep 1966

Pagination or Media Count : 208

Abstract : The report evaluates the feasibility and desirability of a fluidic Automatic Flight Control System. The study is carried out in four parts: (1) a description of the basic flight control system and fluidic components; (2) the definition and requirements for an automatic flight control; (3) a proposed fluidic system; and (4) an evaluation of the proposed system with a comparison with an existing Automatic Flight Control System. The Automatic Flight Control System (AFCS) to be implemented consists of open loop damping (OLD) systems, stability augmentation systems (SAS) and an autopilot. Each mode of control - pitch, yaw, roll, and translation - is similar in function. The portion of the complete AFCS chosen for implementation is the pitch axis of a fly-by-wire system. For the Fluidic system under consideration in this report, a fluid signal transmission system is the equivalent of the conventional fly-by-wire system. The proposed fluidic control has hydraulic OLD and SAS, and a pneumatic autopilot. These fluids were chosen primarily for compatibility with the power drive and response, respectively. The reliability comparison, which for the fluidic components was based on estimated failure rates, shows better performance for the fluidic system.

Descriptors :   *FLIGHT CONTROL SYSTEMS, *FLUIDICS, AUTOMATIC, AUTOMATIC PILOTS, DETECTORS, FLUID AMPLIFIERS, HELICOPTERS, STABILIZATION SYSTEMS, VERTICAL TAKEOFF AIRCRAFT

Subject Categories : Helicopters
      V/STOL
      Fluidics and Fluerics

Distribution Statement : APPROVED FOR PUBLIC RELEASE