Accession Number:

ADA106672

Title:

Simulator Evaluation of Electronic Radio Aids to Navigation Displays. The RA-2 Experiment.

Descriptive Note:

Interim rept.,

Corporate Author:

ECLECTECH ASSOCIATES INC NORTH STONINGTON CT

Report Date:

1981-07-01

Pagination or Media Count:

122.0

Abstract:

The report describes a ships bridge simulation evaluation of an electronic radio aids to navigation display for use by pilots in restricted waterways. The experiment known as RA-2 is the third in a series of experiments to trade off display information effectiveness with operational requirements and shipboard system cost. The RA-2 evaluation used a benchmark true motion, trackup GRAPHIC display recommended in the previous experiment to conduct simulated poor visibility runs of a 30,000 dwt tanker around a 35-degree left bend in a 500-foot-wide channel. Experimental variables included two different navigation system noise levels which translated to random position errors of 16 and 32 meters RMS, and the use of an ALPHA-BETA tracker with 3-, 12-, or 24-second rise time, or gyro aiding, to represent a state-of-the-art navigation system filtering capability. Evaluation criteria included pilot trackkeeping and maneuvering performance as well as system acceptance. The report describes the rationale for variable selection, how they were simulated, and their potential effect on restricted waterway pilotage when the benchmark display is used. Author

Subject Categories:

  • Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE