Two On A Big Ocean The Story of the First Circumnavigation
of the Pacific Basin
in a Small Sailing Ship


      

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Re: Distance off useing a hand held compass


Subject: Re: Distance off useing a hand held compass
From: David Weilacher (daveweilacher@XXX.XXX)
Date: Tue Mar 25 2003 - 13:50:42 EST


So you are arguing that if I can measure the distance I travel...

If I were to take a bearing on an object then wait till the bearing changed by one degree, my distance off would be 360 times my distance travelled? At 2 degrees, I could multiply my distance traveled by 360 and divide by 2 for distance off?

This is strictly a question. In no way is it meant as a comment or criticism.

-------Original Message-------
From: "Richard M. Pisko" <rmpisko1@XXX.XXX>
Sent: 03/25/03 04:06 PM
To: NAVIGATION-L@XXX.XXX
Subject: Re: Distance off useing a hand held compass

However, I thought you mentioned a military compass, which
is graduated in mils in the US. Could you not just take a
bearing, walk away from that point so as to keep the object
more or less at right angles to your (perhaps slightly
curved) path, and stop when the new bearing is 10 mils
different from your first? That way, the distance to the
object will be 100 times the distance you traveled ...
barring local magnetic anomalies.

Dave Weilacher
.US Coast Guard licensed captain
. #889968
.ASA instructor evaluator and celestial
. navigation instructor #990800
.IBM AS400 RPG contract programmer





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