sexta-feira, 22 de abril de 2016

Open OCEAN - My favorites quotes from the famous Bowditch


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"Just as the navigator must prepare charts for piloting, he must also prepare his small scale charts for an open OCEAN transit. The following is the minimum chart preparation required for an open OCEAN or offshore coastal transit.

Correcting the Chart: Correct all applicable charts through the latest Notice to Mariners, Local Notice to Mariners, and Broadcast Notice to Mariners. Ensure the chart to be used is the latest announced edition.

Plotting the Track: Mark the track course above the track line with a “C” followed by the course. Similarly, mark each track leg’s distance under the course line with a “D” followed by the distance in nautical miles.

Calculating Minimum Expected, Danger, and Warning Soundings: Chapter 8 discusses calculating minimum expected, danger and warning soundings. Determining these soundings is particularly important for ships passing a shoal close aboard. Set these soundings to warn the conning officer that he is passing close to the shoal. Mark the minimum expected sounding, the warning sounding, and the danger sounding clearly on the chart and indicate the section of the track for which they are applicable.

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Marking Chart Shift Points: Mark the chart points where the navigator must shift to the next chart, and note the next chart number.

Examining Either Side of Track: Highlight any shoal water or other navigational hazard near the planned track. This will alert the conning officer as he approaches a possible danger."

CHAPTER 25. NAVIGATION PROCESSES

BOWDITCH

THE AMERICAN PRACTICAL NAVIGATOR





Leia uma explicação para esta série de 30 posts clicando aqui.

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