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Question Differences in MT between EasyVFR 3 and 4


18122ca2daab03e065e0c1a49e2dc3e2?s=80&d=retro&r=g
Posts: 5
Topic starter
Active Member
Joined: 7 months ago

Hello,

Upon comparing the same loaded route in EasyVFR 3 and 4, I noticed in the navlogs that there are consequently slight differences in magnetic track between the same tracks between the points, of 2-3 degrees. Both EVFR 3 and 4 make use of the same aerodata. Which one is the 'most' correct of the two versions?

Many thanks

Lennard

 

 

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5c1242ce1c84de60ae1ea618ae44df33?s=80&d=retro&r=g
Posts: 957
Admin
Famed Member
Joined: 3 years ago

Hi Lennard,

sorry for my late reply; but EV4 uses a more recent magnetic model then EV3. This explains the differences between the two. Its an interesting subject btw; NOAA has written a few articles about the “unexpected” drifting of the magnetic northpole over the last few years. Their wmm2020 model (thats the one EV4 uses) had some challenges for them I believe.

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18122ca2daab03e065e0c1a49e2dc3e2?s=80&d=retro&r=g
Posts: 5
Topic starter
Active Member
Joined: 7 months ago

Hello Rob,

No problem for the delay. OK good to know this, I will stick then to planning with version 4! 🙂

Best, 
Lennard

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