That YouTube series is what inspired me to try a round the world flight too (at least in the sim we don’t have to take ‘comfort breaks’ using bottles - although it’s still an option, mind you!
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I started mine in the C152 not long after the sim came to xbox, although I did have previous experience with prior MSFS’s and Xplane. Going east from Edinburgh, Scotland it took me around seven months.
The rules I set for myself included: no assists except on longer legs eg. flying up the east coast of Russia and the Aleutian Islands and crossing Greenland, were I used unlimited fuel. I also used live weather except where it would prevent me flying VFR (the trip was largely focused on sightseeing in the new sim). I also almost completed ignored airspace restrictions (again, for the eye candy).
I have a rough google maps image showing my route (minus the extra circular line, whichalso knockedof the distance), but no flightplan to share as I’m on console:
I’d like to try again in the JF Arrow and using the velocityone yoke, but can’t decide on a new route.
Will be interested to see more details of your trip as it unfolds (with photos!) 