Nice Work
First of all let me say :"You did a damn good job with this program"
Secondly: Lately I have got the habit to use it in my plotting without jumping from the map to radar constantly. I write down the bearings and distances of the targets that i am following and do all the calculation in Mobo. When i am satisfied with the result i plot only the last position on the map and draw his course as a visual aid.
Now i think there is a problem with the vectors addition. When i get a contact at extreme range on the radar sometimes i stop and i plot from a stationary position. When i put all the data inside Mobo and i perform the vector addtion it appears that mobo doesn't add if your speed is 0. Now if my speed is zero knots and my course is different from 000° the vector addition should be performed because the course of the target it is still realtive to me. This is not a big deal because to get the target true course you have only to add to his relative course you heading. I haven't still checked the behaviour when you subtract vector and you are converting from true course and true speed to a relative to get the drm of the target and your speed is zero. Or maybe i am doing someting wrong, dunno still getting to know this program. Anyway very good job and thanks.
Obviously this scenario appear if you plot on mobo relative to me . If i convert the relative bearing to true bearing everything works fine.
Marko
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