VFR track error adjustments
 

This may seem a bit low-brow for this forum. With regards to track error adjustments, i'm familiar with the 1 in 60 rule. I understand there's an even simpler one involving the inverse fraction of the distance gone on any given leg. ie 1/3, 1/2, 2/4 etc. It's something along the lines of the following:

? x 3/1=closing angle. (3/1 being the inverse fraction of 1/3 of the way along track).

Can anyone shed any light on this.

Cheers
:ugh: