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Subject: Re: Leg 58 results
From: Dan Hogan (dhhogan@XXX.XXX)
Date: Wed Sep 29 1999 - 20:09:04 EDT
Sorry for the slow response:
>Silicon Sea Leg 58 answers:
>
>1. 2.9 kt and 031 deg made good during the night. Seems a rather
>small distance made good (47 mi). Hope I didn't make a mistake.
OK, Ok on the distance,
>2. Mar 29 1800 ZT DR = 4940 S 6450 W.
OK
>3. The fathometer should be able to keep us inside the 200-fathom
>line.
OK
>4. 033 deg true and 1920 mi to Rio de Janerio.
Within the tolerance--I forgot what method you're using.
>5. Compass course, allowing for variation, deviation, and current (1
>deg right correction) = 025 deg.
Within tolerance but diff. is increasing.
>6. ETA = Apr 6 0400 Z.
???
>7. Rio is 3 hours behind Greenwich time, thus local ETA = Apr 6 0100.
Asks for ZD. But Rio Noon IS 1500 Greenwich.
>
>Problems worked with plotting sheets and E-6B analog computer. It's
>unreasonable to use a plotting sheet for the run to Rio, but I want to
>see how close it comes. Used a mid-latitude of 36 S for that sheet.
>
Dan Hogan WA6PBY
C27 "Gacha"
dhhogan@XXX.XXX
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