Pilot Performance, Workload, and Situation Awareness During Lunar Landing Mode Transitions

Autor: Charles M. Oman, Christopher J. Hainley, Kevin R. Duda, Alan Natapoff
Rok vydání: 2013
Předmět:
Zdroj: Journal of Spacecraft and Rockets. 50:793-801
ISSN: 1533-6794
0022-4650
DOI: 10.2514/1.a32267
Popis: Aircraft and spacecraft pilots frequently change their level of supervisory control between full autopilot and other modes, providing varying levels of manual control. Therefore, multimodal systems must transition “gracefully,” meaning without unsafe decreases in flight performance or unacceptable changes in workload or situation awareness. Thirteen subjects flew a fixed base simulation of the NASA Constellation Program Altair lunar lander that transitioned from full autopilot to one of three flight-director-guided rate-command attitude hold manual control modes. After training, each subject flew 24 approaches, half of which included a landing point redesignation at the time of the mode transition requiring the pilot to null additional guidance errors. Bedford subjective workload and two-choice embedded secondary task response times were used to quantify temporal changes in mental workload. Situation awareness transients were detected by analysis of a tertiary task, verbal callouts of altitude, fuel, and ...
Databáze: OpenAIRE