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Old 09-14-2018, 01:24 PM   #1
Avantar
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Default Heading in ME & Wind direction - magnetic or grid?

Hi guys,

I am playing with mission building for some time and since I wanted to place carrier juuust right I stumbled upon a problem:

Is the wind direction used in Mission Editor magnetic or true?

To explain: in ME to make carrier route *exactly* north I placed two waypoints with the same longitude. because of how the globe translates into flat map I ended up with route going diagonally to the left (along the grid lines), which is fine and what I expected. but, the *heading* tool from the ME shows the course 354 instead 0. If I set the wind heading 180 in the ME - will it be the same as heading shown by the map tool?

Also - if I measure heading along the flight paths with the map tool - will it be exactly what my HUD will show when flying from one Wp to the other or will it be off by couple of degrees? (6 in case of Caucas)

Thanks!
Avantar.
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Old 09-14-2018, 03:57 PM   #2
tom_19d
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Hi Avantar,

The ME and the F10 map ruler tool display bearings relative to true north. You are correct that on the Caucus map the difference between magnetic and true is 6 degrees (I always use 7, but I'm not going to claim I can fly a compass heading within +/- 1 degree so no big deal). So if you measure a true course of 276 in the ME, you would need to fly a 270 magnetic course to follow that line (caveat-- this is true for the A10, the F5, and the F86. I have not explored the F18 enough to know how it handles this, although traditionally American aircraft display navigation data referencing magnetic north).

It is also my understanding that wind direction is entered relating to true north. Also, I am sure you have noticed, but DCS is a little odd in that the wind direction ended in the ME is where the wind is blowing TO, rather than where the wind is blowing FROM as it is reported in the US (it seems you probably already know this since you have your carrier moving along a 360 and a 180 wind, but I thought it worth mentioning).
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Old 09-14-2018, 07:09 PM   #3
Avantar
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Thanks, that confirms my understanding. And yes, I did notice longa ago that DCS handles wind ifnormation in a ridiculous way (in aviation you always say where the wind is gusting FROM, not where to). And what is more disorienting ATC will tell you the wind direction in a proper way (that is, 180* opposite what the briefind says). Also, in all my current experience wind also should be given in magnetic heading, not true. But I can live with that. thanks again.
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