Okay Going back to basics because I can't remember everything and I couldn't find the answer when looking it up!
So As usual I pose here, learn the knowledge and post it back and help others!
Isogonic Lines, they are the lines on ie. a VFR sectional chart, that help calculate the variation between the true course you drew from point A to B to Magnetic course seeing as we fly using our MAGNETIC compass
My question is,
During my course, I have 2-3 Isogonic lines and I really can't remember which one I use for which side of the line Im on!!!
For example: If I was here /W15' If I was here /W16' If I was here
which one do you use the /W15 or the 16 when do you swap over which do you start with?
Im tempted to stay you use the Isongic line closest to your current position, but if your in the middle of two which do you use either?
Another Fun Question