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Different MSA on reverse legs


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JanR
JanR
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Hi,

during planning I noticed, that the MSA ist different for identical but reversed legs.
e.g. BOT NDB to DOMEG shows only MSA 2.200, on the reversed leg (DOMEG => BOT)  it is 2.300. 
For the leg Essen to BOT (2.300) it is even 300 ft less on the reverse leg. Why?

(PC Version 3.6.0.0 & latest Android  Version)



Thanks & Regards
Jan
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Tim Dawson
Tim Dawson
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Group: Forum Members
Posts: 8.1K, Visits: 9.2K
Thanks, got it, and I can now see the same thing. I needed to expand my obstacle clearances. It'll be an obstacle. SkyDemon needs to take into account obstacles that are not strictly enroute along a leg of your flight, but which are in the "turning circle" around your waypoints, when it calculates the MSA for that leg. So how you turn into a leg does affect the MSA for that leg, which is why you might get slightly different values for an outward and return leg.

I know this can appear confusing but the alternative, which is to not take account of those obstacles at all, would be dangerous.
GO

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