Analog track angle error displays improve simulated GPS approach performance

Oman, C.M.; Huntley, M. Stephen, Jr.; Rasmussen, S.

i

Analog track angle error displays improve simulated GPS approach performance

1996-01-01
By Oman, C.M. ; Huntley, M. Stephen, Jr. ; Rasmussen, S.

File Language:

English

Details

Creators:

Oman, C.M. ; Huntley, M. Stephen, Jr. ; Rasmussen, S.
Corporate Creators:

John A. Volpe National Transportation Systems Center (U.S.)
Subject/TRT Terms:
Resource Type:

Proceedings
Geographical Coverage:

United States
Corporate Publisher:

United States. Department of Transportation. Federal Aviation Administration
Abstract:

Pilots flying non-precision instrument approaches traditionally rely on a course deviation indicator (CDI) analog display of cross track error (XTE) information. THe new generation of GPS based area navigation (RNAV) receivers can also compute accurate track angle error (TAE). Does display of supplementary TAE information improve intercept and tracking performance? Six pilots each flew 20 approaches in a light twin simulator to evaluate 3 different TAE/XTE display formats, in comparison to a conventional receiver CDI display and a more centrally located Horizontal Situation Indicator (HSI). Statistically significant performance improvements were seen in several phases of the approach when using the supplementary TAE information. Analog was preferred over numeric format. However, the advantage was offset by the need to widen the pilot's instrument scan to include the receiver display. Pilots found TAE helpful in establishing intercepts and the appropriate wind correction angle. Findings support the recent FAA TSO-C129 requirement that XTE be presented in the pilot's primary field of view and the recommendation that avionics manufacturers include supplementary analog TAE display capability.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/8784/dot_8784_DS1.pdf
File Type:

[PDF - 600.26 KB]
Collection(s):

Volpe Center
Main Document Checksum:

urn:sha256:16041124b42871bbfc96530f3982a7f4c346f81f4d14abfa67e625f7b0207761

File Language:

English

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