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Abstract:
This report describes the evaluation of the Inogon Leading Mark that was conducted by the Coast Guard Research and Development Center. The device is a single station range designed for short range applications. The Inogon device uses optical interference techniques to create, against a yellow background, a series of black chevrons (arrows) that point in the direction of the center of the channel. This device was evaluated in both a laboratory and field setting. In the laboratory evaluation, the detection range of the device was measured and accuracy with which one can use the device to navigate was established. In the field evaluation, the device was installed at Constable Hook Channel in New York Harbor immediately beneath the two station range, and user feedback was solicited in the form of a questionnaire. The device was shown to perform as described by the manufacturer, with detection ranges of approximately 1750 and 2250 yards in daylight and darkness, respectively. Responses from the field evaluation were generally negative, mostly because the device was perceived to have too short a detection range for the Constable Hook Channel. It is recommended that the device be considered as a candidate range light for very short range applications.
| Description: |
Final rept. |
| Pages: |
25 |
| Report Date: |
JAN 86 |
| Report Number: |
A801861 |
Report Unavailable |
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