Fido Posted September 9, 2003 Share Posted September 9, 2003 From your link: "the rhumb crosses all meridians at a constant angle. It appears curved on the gnomonic due to arrangement of the graticule but it can be shown that the angle is constant." From looking at the line drawn in the NRT-SCL case I couldnot decide if the line crossed the meridians at the same angle and that is why it changed the curve at the equator??? Link to comment Share on other sites More sharing options...
Innuendo Posted September 10, 2003 Share Posted September 10, 2003 Hi Fido, I don't know why the NRT-SCL and HKG-SCL are so far apart on the world map. I'd have thought they should be a lot closer to each other. I suspect that the site is not set up to depict the globe over the southern hemisphere as well as it does the north. If you select HKG-YYZ you will see what I mean. It has the north polar routings viewed from space from above the northern hemisphere. At least that is my best guess. Link to comment Share on other sites More sharing options...
Fido Posted September 10, 2003 Share Posted September 10, 2003 Oddly, if you input NRT-GRU you get a [normal??] great circle route. When I first looked at HKG-SCL I could not find the track as I was looking in the wrong spot!! Link to comment Share on other sites More sharing options...
Innuendo Posted September 10, 2003 Share Posted September 10, 2003 Yeah, I guess we are so used to seeing maps of the world showing it as "flat". It is a bit amusing when you are over the North Pacific at 180 degrees and you enter present position direct to London and it says turn and head North. Link to comment Share on other sites More sharing options...
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