Accession Number : AD0783956

Title :   Cockpit Switching Study: Test and Validation of a Design Procedure for Multifunction Switching Controls.

Descriptive Note : Annual technical rept. 1 Feb 73-31 Jan 74,


Personal Author(s) : Graham,David K.

Report Date : JUL 1974

Pagination or Media Count : 239

Abstract : The document reports the test and validation of a 'handbook' design procedure, developed during an earlier study, for the step-by-step design of multifunction switching controls (MSC's). An MSC panel for the Navigation and Weapons Delivery System of the A-7E airplane was designed using the procedure, and this panel was then analytically compared with conventional controls on the basis of pilot workload. Variations of the baseline MSC were also designed and tested to ascertain the effect of imposing constraints on the design procedure. The workload comparison was accomplished using a digital computer program developed specifically for workload evaluation. Results show the MSC panels in all respects at least equal, and in most cases superior, to conventional controls on the basis of pilot workload. In addition to the workload advantage, the baseline MSC panel occupied only one-tenth the panel space required for equivalent conventional controls. (Modified author abstract)

Descriptors :   *Electric switches, *Cockpits, *Instrumentation, *Jet aircraft, *Control systems, Instrument dials, Logic circuits, Display systems, Control panels, Aeronautics, Mission profiles, Switching circuits, Human factors engineering, Handbooks, Reliability, Flight testing

Subject Categories : Aircraft
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE