NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Visual-Motion Cueing in Altitude and Yaw ControlResearch conducted using the Vertical Motion Simulator at the NASA Ames Research Center examined the contributions of platform motion and visual level-of-detail (LOD) cueing to tasks that required altitude and/or yaw control in a simulated AH-64 Apache helicopter. Within the altitude control tasks the LOD manipulation caused optical density to change across altitudes by a small, moderate, or large amount; while platform motion was either present or absent. The results from these tasks showed that both constant optical density and platform motion improved altitude awareness in an altitude repositioning task, while the presence of platform motion also led to improved performance in a vertical rate control task. The yaw control tasks had pilots'sit 4.5 ft in front of the center of rotation, thus subjecting them to both rotational and lateral motions during a yaw. The pilots were required to regulate their yaw, while the platform motion was manipulated in order to present all combinations of the resulting rotational and lateral motion components. Ratings of simulation fidelity and sensed platform motion showed that the pilots were relatively insensitive to the rotational component, but highly aware of the lateral component. Together these findings show that: 1) platform motion cues are important when speed regulation is required during altitude change; 2) platform motion contributes to the perception of movement amplitude; 3) lateral, but not rotational, motion cues are essential to the perception of vehicle yaw; and 4) LOD management yielding constant optical density across altitudes improves altitude awareness.
Document ID
20020011020
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Johnson, Walter W.
(NASA Ames Research Center Moffett Field, CA United States)
Schroeder, Jeffery
(NASA Ames Research Center Moffett Field, CA United States)
Statler, Irving C.
Date Acquired
August 20, 2013
Publication Date
January 1, 1994
Subject Category
Aircraft Stability And Control
Meeting Information
Meeting: 38th Annual Human Factors and Ergonomics Society Meeting
Location: Nashville, TN
Country: United States
Start Date: October 24, 1994
End Date: October 28, 1994
Funding Number(s)
PROJECT: RTOP 505-64-36
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available