NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Time on a small boat CN
From: RHT
Date: 2004 Jan 8, 10:41 -0500
From: RHT
Date: 2004 Jan 8, 10:41 -0500
> Doug, perhaps you can tell me what rates of errors you have seen > logged for the chronometers you use? [snip] Jared, I've found that I can reduce the error of an inexpensive quartz watch to less than one second uncertainty per month simply by rating it. As a matter of fact, I've begun rating my wristwatch for next June's Newport Bermuda Race already. Because the watch stays buckled to my arm almost 24x7, the ambient temperature doesn't seem to be a problem, and all I need to is plot it's error once per month. Having done this on Jan 3rd, I'll add error plots every thirty days, and even if WWV fails me - as it did last summer on the Newport to Hamburg Race, I'll have as accurate a handle on time as I need via extrapolation from my error graph. Regards, Bob
