It doesn't matter right now, because for planes with smaller capacity, the large truck won't arrive, and the small truck doesn't have a man+fuel hose animations, so it will park somewhere close to the left wing, but not in the exact point of the refueler.
With the next update, we are trying to make a better animation on the smaller truck too, so it will use the precise refueling point set in the configuration (which, right now, is not preset by GSX, but it will be in the update).
However, since the airplane has an high wing, it surely can support the two largest tankers so, if you want to play with it, you can try this (unsupported) modification:
- First, configure the plane to set the refueling point. We are using these numbers for the Q400: 10.27 -0.27 4.16
- Open the Simobjects\Misc\FSDT_FuelTruck_TZA45FM\SIM.CFG file with a text editor, and change ALL the lines that read:
couatl.condition = %(fuelCapacity)f >= 3500 and %(fuelCapacity)f < 8000 and %(fuelPointHeight)f > 3.40
change to:
couatl.condition = %(fuelCapacity)f < 8000 and %(fuelPointHeight)f > 3.40
- Open the Simobjects\Misc\FSDT_FuelTruck_7296\SIM.CFG file with a text editor, and change the line that reads:
condition = %(fuelCapacity)f < 3500
change to:
condition = %(fuelCapacity)f < 1
This will remove the limitation of requiring at least 3500 usgal capacity in the airplane to get the smaller of the two larger trucks, and will basically remove the smaller truck, so you can still use the new refueler in the meantime.