Re: some navigation info. from a trip aboard the RMS St. Helena
Subject: Re: some navigation info. from a trip aboard the RMS St. Helena
From: Roger M. Derby (derbyrm@XXX.XXX)
Date: Mon Oct 04 1999 - 11:02:50 EDT
It would work if he used local times for a twenty five hour day.
Roger
Russell Sher wrote:
> <snip>
> Each day, various points of interest from the bridge would be read over the
> vessel's public address system. e.g. the position, average speed and charted
> depth, etc. These would always be given for 1200 LMT.
>
> On one particular day the vessel's distance run (between 1200 previous day
> and 1200 for the day in question), was given as 377.5 nautical miles and the
> officer of the watch went on to say that this implied an average speed of
> 15.1 knots. Some quick calculating had me confused, since this did not seem
> to work out - after a while I figured it out - who of you on our list can
> give me the reason for the apparent discrepancy?
>
