This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Unusual Attitude Recovery Using the Roll Arrow
Technical Paper
2001-01-3009
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
As part of the NASA High Speed Research program, an unusual attitude (UA), pilot-in-the-loop simulation study provided information on Primary Flight Display (PFD) symbology factors that affect UA recovery. Overall research objectives were to evaluate symbology concepts to facilitate pilot perception and safe recovery.
It was concluded that UA recognition and recovery task performance is unacceptable when the pilot relies only on raw data but is improved markedly with appropriate second-generation symbology. The major result indicated that a newly-developed PFD symbol (the Roll Arrow) significantly reduced UA recognition errors. The Roll Arrow is a large, red arrow attached to the PFD Bank Angle Pointer. When the aircraft is in a UA, the Roll Arrow appears on the PFD and points left or right to indicate the required direction to roll for recovery. Other recovery actions are at pilot discretion.
In comparison to other evaluated symbology designs, the Roll Arrow was associated with 90% reduction in pilot error. Workload, situation awareness, and pilot opinion all favored the Roll Arrow.
Recommended Content
Authors
Citation
Gershzohn, G., "Unusual Attitude Recovery Using the Roll Arrow," SAE Technical Paper 2001-01-3009, 2001, https://doi.org/10.4271/2001-01-3009.Also In
References
- Bailey, R. Knotts, L Flight and ground simulation evaluation of the proposed USAF head-up display standard Paper presented at the AIAA Flight Simulation and Technologies Conference, AIAA Paper No. AIAA 93-3605 August 9–11 1993
- Bailey, R. Knotts, L. Priest, J. Gawron, V. Parada, L Evaluation of proposed USAF HUD standard, Session II Buffalo, NY 1992
- Dudfield, H. Davy, E. Hardiman, T. Smith, F. The Effectiveness of Colour Coding Collimated Displays: An Experimental Evaluation of Performance Benefits Defense Research Agency Farnborough, UK 1995
- McNaughton, B Aircraft attitude awareness workshop Flight Dynamics Laboratory Wright-Patterson AFB, OH October 8–10 1985
- Newman, R Improvements in head-up display standards, vol. II, Evaluation of head-up displays to enhance unusual attitude recovery Flight Dynamics Laboratory Wright-Patterson AFB, OH 1987
- Newman, R. Head-Up Displays: Designing the Way Ahead Avebury Aviation, Ashgate Publishing Aldershot, UK 1995
- Reising, J. Barthelemy, K. Hartsook, D. Unusual attitude recoveries using a pathway in the sky AIAA Paper No. AIAA-91-2927-CP 1991
- Reising, J. Zenyuh, J. Barthelemy, K Head-Up Display Symbology for UA Recovery Proceedings of the National Electronics and Aerospace Conference Flight Dynamics Laboratory, Wright-Patterson Air Force Base Dayton, OH 1988