Tuesday, 4 November 2008

The Dotty Dog Rule

Here's a way I devised to remember the 1-in-60 rule: Distance Off Track x 60, divided by Distance Gone is expressed as DOTx60 over DG, which to my mind is best remembered as dots over a dog (60 of them), giving you a dotty dog.

Of course that only gives you a track which is parallel to the intended track, so some people double the number of degrees (two dogs!), so that you track back towards the intended track, but this will take as long as it took to get off track, and you may then only get back on track after your destination! So some recommend tripling the result (three dotty dogs!).

A better way to get on track and to your destination is:

(Any suggestions as to how to picture the TTr/DTG memorably?)

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