NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Silicon Sea: Leg 85
From: Paul Hirose
Date: 2002 Nov 12, 14:30 -0800
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".
