It seems to me that either the Mosquito is not carrying a full fuel load or its fuel burn rate is much higher than other aircraft in AH. The Mosquito FB.VI had a range of 1,800 miles on internal fuel. It seems to barely fly further than the Spitfire MkIX in AH. Last night I took a Mosquito with full fuel and droptanks and only managed 8 sectors or so before landing on fumes.
The Mosquito FB.VI had a range of 1,800 miles.
The Spitfire MkIX had a range of about 600 miles.
The Mosquito carries 539 Imp gal of fuel internally, or 269.5 Imp gal per engine. It has two 68 Imp gal center tanks, two starboard inboard tanks with the inner tank holding 78 Imp gal and the outer tank holding 65.5 Imp gal, two starboard outer tanks with the inner tank holding 34 Imp gal and the outer tank holding 24 Imp gal, two port inboard tanks with the inner tank holding 78 Imp gal and the outer tank holding 65.5 Imp gal and two port outer tanks with the inner tank holding 34 Imp gal and the outer tank holding 24 Imp gal. This is about 3,400lbs of fuel. (This info is specific to the Mosquito B.XVI, but I think it is generally accurate for all Mosquitoes)
The Spitfire MkIX carries 85 Imp gal of fuel internally, a 48 Imp gal upper tanks and a 37 Imperial gallon lower tank. This is about 530lbs of fuel.