[rhillsqd] Re: Definition of Deviation
- From: keefer1543@xxxxxxxxxxxx
- To: rhillsqd@xxxxxxxxxxxxx
- Date: Mon, 06 Dec 2004 18:39:50 -0500
At 04:54 PM 06/12/2004 -0500, you wrote:
>
>Dear Paul :
>The definition is correct. As you noticed , since the vessel's heading
>changes as per the master's command , so will the deviation. Hence , a
>deviation table for the various heading is required .
>This topic is discussed in the next course.
>With best wishes : Harald
--------------------------------------------
Hi Paul:
In the least significant sense, if there were no influences affecting the
compass, anywhere aboard the boat (ship), then deviation would be of no
consequence would it. ? Deviation would then be "Zero". If you add any
magnetic influences to the boat (ship), then that will cause the compass to
be in error. The amount of error will then be equal to the difference
between what the actual compass reading should be and what it is actually
reading. This difference between these readings is "DEVIATION".
Therefore you can now say, and I will say it a little bit differently,
that "DEVIATION" is:- the angle, on a particular heading, by which a
boat/ship/craft's magnetic compass differs from magnetic North.
Now let's hope that I don't get into trouble with Harald or Craig or Larry
<g>, and was able to make the definition a little clearer ?
CAIO
Keith
Keith
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