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Subject: Re: Silicon Sea: Leg 85
From: Paul Hirose (paulhirose@XXX.XXX)
Date: Tue Nov 12 2002 - 17:30:07 EST
1. Total distance from Hanalei Bay to L.A. Light = 3990 miles
2. Based on a Speed of 10 Kts it will take 16.6 days to L.A. Light.
3. At 7.5 gallon/day total water consumption, total to the L.A. light
will be 125 gallons. The vessel has a 220 gallon capacity, so there
appears to be enough.
4. TC from Hanalei Bay to MOP1 is 013.
5. Departure was at local apparent noon.
6. TC to MOP1 = 014.
7. Steer 1 degree left for current and subtract 11.5 deg compass
error. Compass course = 002 to MOP1.
Mostly I used plotting sheets and did the computations graphically.
For the current correction I'd normally use an E-6B slide rule, but
this time I drew a current triangle on the plotting sheet for the
sake of variety.
Looking at the answers, my distance was about 25% off. Even on
plotting sheets I think I should have done better. May have made a
mistake. At least I got the initial course right within a couple
degrees. As an instructor told my class many years ago, the most
important output from any nav system is "which way do we go".
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