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Old 07-11-2013
chamonix chamonix is offline
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Re: Need Opinion: Chart plotter, north up or course up?

The hard wiring of the brain is an interesting theory. At least in my case I think it has more to do with visual clues. Going over land with a topo map there are lots of visual clues that you can use to determine your position so it makes sense to have the map oriented to your line of march. On water there are a lot less visual clues, it's flat and open and the clues are harder to decipher. Its basic course and speed which for me is easier to handle with things North up. I also use a small hand held chartplotter with a small screen, zoomed into about 1 or 2 nautical miles. A larger chart is used for the big picture, and I'm constantly comparing the two. It's a lot easier if both are oriented on the North axis rather than constantly turning the map to match a constantly changing bearing.
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