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I'm noticing some strange isochrone activity.
They are changing according to different destinations oman, AD, hormuz, manual etc.
My understanding was that isochrones are static regardless of destination and our destination merely puts a preference on where we would like to be on the isochrone.
i.e. the isochrone is where you could be in a certain amount of time and is calculated from wind and polar data. The destination is irrelevant until decisions are to be made and optimum tracks are to be calculated.
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