Changes in time estimating abilities through workload analysis as measured by +Gz acceleration

Author

Popper, Stephen E. ; Repperger, Dan W. ; Frazier, John W. ; Goodyear, Chuck

Author_Institution

Harry G. Armstrong Aerosp. Med. Res. Lab., Wright-Patterson AFB, OH, USA

fYear

1990

fDate

21-25 May 1990

Firstpage

862

Abstract

The time estimation of pilots under various workloads was investigated. Eight subjects completed four days of randomized testing and were exposed each day to two simulated aerial combat maneuvering (SACM) profiles of 180-s duration and with a maximum level of +8 Gz. Counting and noncounting (rate projection) tasks were used as time estimation techniques. The time intervals measured were 2, 8, and 16 s. The duration of the noncounting task (the most accurate task to estimate) was found to be greater than 8 s. The production task was much more accurate to estimate than the reproduction task, and long-duration tasks were found to be most influenced by the intensity of the G stress, as well as if the G stress was decreasing

Keywords

aerospace biophysics; aerospace simulation; human factors; military systems; +Gz acceleration; 16 s; 180 s; 2 s; 8 s; G stress; counting task; military systems; noncounting task; pilots; randomized testing; rate projection; simulated aerial combat maneuvering; time estimation; workload analysis; Acceleration; Accelerometers; Biomedical engineering; Degradation; Human factors; Laboratories; Military aircraft; Stress measurement; Testing; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace and Electronics Conference, 1990. NAECON 1990., Proceedings of the IEEE 1990 National

Conference_Location

Dayton, OH

Type

conf

DOI

10.1109/NAECON.1990.112881

Filename

112881