Accession Number : AD0648074

Title :   AN INVESTIGATION OF SECTIONAL AERONAUTICAL CHARTS AND SERIES 200 CHARTS AS BRIEFING AIDS FOR A SIDE-LOOKING RADAR RECONNAISSANCE TASK.

Descriptive Note : Final rept. Jan-Jun 66,

Corporate Author : AEROSPACE MEDICAL RESEARCH LABS WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : McKechnie,Don F.

Report Date : NOV 1966

Pagination or Media Count : 19

Abstract : After appropriate training, 42 Air Force navigators were tested on a strip of side-looking radar imagery to study the effects on performance that circling targets on two types of aeronautical charts might produce. The imagery, at a scale of 1:130,000, moved down a back-lighted 14 by 14-inch screen at 16.8 inches per minute, corresponding to 1800 knots. The subject's task was to identify all airfields, dams, railroad yards, tank farms, and ammunition storage areas. The speed and accuracy of locating and identifying these targets under three conditions of briefing were assessed. The three conditions were (1) target list only (control group), (2) Series 200 Chart (1:200,000), target circled, and (3) Sectional Aeronautical Chart (1:500,000), targets circled. Fifty-five percent of the 24 targets were found when only the target list was given. Ninety-three percent of the 24 targets were found with the Series 200 Charts. Ninety-four percent of the targets were found with the group and one each for the chart groups. The mean travel distance before detecting a target increased when the charts were used. The mean false positive travel before responding was in every comparison greater than for real targets. This suggests that readily available charts, when annotated by circling the target, improve target detection performance tremendously. (Author)

Descriptors :   (*MAPS, DETECTION), (*SIDE LOOKING RADAR, MAPS), (*TARGETS, DETECTION), (*DETECTION, PERFORMANCE(HUMAN)), AERONAUTICS

Subject Categories : Psychology
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE