Accession Number : ADA254939


Title :   Operator Workload Predictions for the Revised AH-64A Workload Prediction Model. Volume 2. Appendixes A Through H


Descriptive Note : Interim rept. Sep 1988-Dec 1991


Corporate Author : ANACAPA SCIENCES INC FORT RUCKER AL


Personal Author(s) : Hamilton, David B ; Bierbaum, Carl R


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a254939.pdf


Report Date : Jul 1992


Pagination or Media Count : 386


Abstract : Under a previous contract, researchers used a composite scenario to conduct a comprehensive task analysis of the AH-64A attack mission. The analysis produced workload estimates and decision rules for developing an AH-64A workload prediction model. For this research, the task analysis/workload (TAWL) methodology was used to construct a workload prediction model. The TAWL Operator Simulation System (TOSS) was used to implement the model on an IBM-compatible microcomputer, and the original function and task analysis was refined to produce a more accurate simulation of crew task activity. In addition, the ordinal workload rating scales used in the original analysis were replaced with equal-interval scales. The predictions generated by the model constructed for this research indicate that under optimum conditions (a) neither the pilot nor the copilot/gunner experiences excessive workload, (b) the pilot has higher overall workload than the copilot/gunner in most mission segments,, and (c) AH- 64A workload is high relative to other Army aircraft that have been analyzed for workload. This model can be used as a baseline for analyzing future modifications to the aircraft. Volume I (ARI Research Note 92-61) of the report summarizes the results of the research, and contains a 5.25-inch floppy diskette with model data files. This report (Volume II) contains the appendixes, which present the AH-64A mission/task/workload analysis, decision rules, and workload predictions.


Descriptors :   *AIRCRAFT , *PILOTS , *WORKLOAD , SCENARIOS , FUNCTIONS , SIMULATION , METHODOLOGY , CONTRACTS , PREDICTIONS , MODELS , MODIFICATION , ATTACK , ESTIMATES , CREWS , MISSIONS , RATINGS , MICROCOMPUTERS , ARMY , GUNNERS , ARMY AIRCRAFT , INTERVALS , ADDITION


Subject Categories : Military Aircraft Operations
      Personnel Management and Labor Relations


Distribution Statement : APPROVED FOR PUBLIC RELEASE