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Subject: Re: Leg 55 results
From: Dan Hogan (dhhogan@XXX.XXX)
Date: Sun Jul 04 1999 - 19:01:53 EDT
Paul:
>This is a little late, but here are my Silicon Sea Leg 55 results.
>The first four answers I have previously posted.
>
>1. DR Mar 16 2101Z = 47 20 S 122 52 W. Local time 8 h behind
>Greenwich.
Lon off a bit.
>2. TC to 52 30 S 100 00 W = 109, distance = 932 nm.
Diff probably due to Lon above
>3. Compass course = 82.
Same as 2, above
>4. DR Mar 17 0250 Z = 47 42 S 121 20 W.
Same diff in Lon
>(the following answers I have not posted before)
>
>5. Fix at 0250 Z = 47 03 S 118 28 W. DR was way off.
Diff on Lat off slighly. Lon off, but diff is less.
>My initial reduction with the Nautical Almanac tables put the LOPs all
>over the ocean. I recomputed the sights with HO 211 and got better
>results. Intercepts were very long due to the bad assumed position. So
>the fix was sloppier than I like, but I was too lazy to re-work the sights
>from a better AP.
>
>6. DR after 81 hours = 52 40 S 99 44 W.
You are off slightly, but if you were navigating using 211 and plotting
on a plotting sheet it would be a NORMAL difference in FIX position
between any two navigators.
>7. Time after 81 hours = Mar 20 1150 Z, 0450 ZT
OK
Dan Hogan WA6PBY
dhhogan@XXX.XXX
Navigation-L: http://nav.cnchost.com
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