Accession Number : AD0479065


Title :   EXPLORATORY DEVELOPMENT PROGRAM TO PROVE THE FEASIBILITY OF SOLID STATE SWITCHING FOR A COMPLEX ELECTRICAL CONTROL NETWORK.


Descriptive Note : Quarterly progress rept. no. 1, 1 Dec 65-28 Feb 66,


Corporate Author : LING-TEMCO-VOUGHT INC DALLAS TX LTV VOUGHT AERONAUTICS DIV


Personal Author(s) : Jones, C M


Report Date : 15 Mar 1966


Pagination or Media Count : 95


Abstract : This report discusses the first quarter efforts of a program to investigate, design, develop, and evaluate a solid state switching concept for the main landing gear position sensing and indicator system for the XC-142 aircraft. The proposed system will utilize solid state devices in place of make-and-break contacts in all of the functions required in the system; i.e., position sensing, control logic, and control of power to the indicators. This program is divided into three phases: theoretical analysis and laboratory model evaluation; component development; and airplane hardware modifications, installation and test. Phase one involves the studies, investigations, and breadboard evaluation necessary to define the requirements for the position sensors, indicator driver, and indicator control unit. Several concepts for position sensors were studied and evaluated. These include solid state light source and detector, solid state strain gage, nuclear, and electromagnetic. Analysis of these concepts showed the electromagnetic concept to offer the greatest promise for success in the application. (Author)


Descriptors :   *LANDING GEAR , CONTROL SYSTEMS , DISPLAY SYSTEMS , ELECTRONIC SWITCHES , SEMICONDUCTOR DEVICES , SWITCHING CIRCUITS , CONTROL PANELS , INSTRUMENT PANELS , DETECTORS , SENSITIVITY , LOCKING FASTENER DEVICES , MANUFACTURING , RADIOACTIVE ISOTOPES , FAILURE(MECHANICS) , HYDRAULIC EQUIPMENT , TEST EQUIPMENT , COILS , TRANSPORT AIRCRAFT , VERTICAL TAKEOFF AIRCRAFT


Subject Categories : Transport Aircraft
      V/STOL


Distribution Statement : APPROVED FOR PUBLIC RELEASE