[madcat]

Don't think there are 110 gallon drop tanks in game so some one who have to make a new mesh for the fuel tank and then add it to the IL2 engine (can't be done at the moment), then you would have to edit weapon and flight model to do this (can't/wont be done at the moment because its against the rules of this site)

So maybe in the future but for now can't be done, sorry