FW190A8 fuel tanks unbalanced

[1stCL/shade*]

Reducing fuel load of FW190A8 before flight causes tank unbalance, for example if fuel is set to 200 liters then the front tank has all 200 liters while the back tank is completely empty. The aircraft is quite noticeably nose heavy. As a counter example doing the same in FW190A5 results in fuel to be split 100 liters in each tank.

[CUJO_1970]

Didn't realize that...very interesting.

[Yogiflight]

1 hour ago, 1stCL/shade* said:

Reducing fuel load of FW190A8 before flight causes tank unbalance, for example if fuel is set to 200 liters then the front tank has all 200 liters while the back tank is completely empty. The aircraft is quite noticeably nose heavy. As a counter example doing the same in FW190A5 results in fuel to be split 100 liters in each tank.

If you start the A8 with full fuel and fly until you have 200 liters left, it will be exactly that way, because the rear fuel tank was emptied first. It was pumped fuel out of both tanks to the engine and the fuel, which was too much was running back into the front tank. That way the front tank stayed full until the rear tank was empty.

It should work the same way in the A3 and A5. They are not modelled correctly, but hopefully this will get changed with the complex fuel system. In game both tanks of the A3 and A5 get emptied at the same time. The fuel system is modelled in a way, that less fuel from the start gets simulated, as if you started with full tanks and have now used your fuel down to the 200 liters.

This is the reason, why, in the Bf 110, if you start with, lets say, 300 liters each side , you will have 270 liters in the rear tanks and only 30 liters in the front tanks, out of which the engines get their fuel. IRL you would of course fill all the 300 liters into the front tanks and keep the rear tanks empty. That way you don't have to pump fuel out of the rear tanks into the front tanks during flight.