Recently bought the game and I’m enjoying it very much.
I’m working my way gradually through the tutorials and I’ve just researched the medium aircraft and the corresponding A-1 fuel system.
My first medium aircraft visitor was delayed in departure because it wasn’t fully fuelled, and after a bit of investigating I caught my A-1 tanker refuelling the small commercial aircraft on the small stands instead of the AVGas tankers.
Well…after the changes around version 30 or so the devs made things a bit quirky in that regard. Before the changes all aircraft were fueled with the proper fuel so it just depended on the plane - which you could look up by clicking on it. Rule of thumb: most propeller planes use AvGas and jets use Jet Fuel. We had some GA jets using Jet A1 as well - which was totally fine. Now hypothetically, the same plane uses AvGas AND Jet fuel - and this depends on whether it is a GA flight or CA flight. I hope this is reverted to a more logical approach.
Yes, this is correct, I misunderstood the question. A lot of players had issues with the pacing of the game and the tutorial in the beginning which is why we made this distinction. Jet A-1 for that aircraft is thus correct.