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Re: Bygrave formula accuracy on 10 inch slide rule
From: Greg Rudzinski
Date: 2015 Jul 8, 19:39 -0700
From: Greg Rudzinski
Date: 2015 Jul 8, 19:39 -0700
Hewitt,
Just got back from the sea trial using a 10" slide rule and the Bygrave formula for the reduction. It was way hard going to weather at 6.5 kts on a 40 ft. sloop. Got through it but much too harsh on mind, stomach, and eyes. The Hav Doniol 5 table place is much better for the job. Not sure about the hav Doniol 10' tables. That will be for another day at sea.
Greg Rudzinski
From: Hewitt Schlereth
Date: 2015 Jul 8, 10:07 -0700Greg, offshore with a 4070-3, spherical trig, and reading glasses? Urp! Have you a supply of promethazine aboard? :-)Hewitt
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