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    Re: Silicon Sea: Leg 85
    From: Paul Hirose
    Date: 2002 Nov 12, 14:30 -0800

    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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