Fuel Tanks on the BF 110
 

Since the official patch has changed the way the fuel works for the 110, has anyone figured out how to manage them? I tried every combination of fuel cocks using the levers on the left of the seat as well as the selector on the right side console and I could not figure out how to draw fuel from the front left and rear right tanks.

I'm guessing that the tanks are engine specific now since I somehow ran out of fuel for my right engine that seemed to be drawing from the right front tank and my left engine was still running seemingly drawing from the left rear tank. Since the front tanks start with a larger quantity of fuel this is confusing to me.

Is this messed up or am I doing something wrong?

Has anyone mastered this new system?

check the TWO RED KNOB levers on the left hand side.. they were not used before, but since the last patch they now act as fuel cocks

As far as I can tell they act as the main on/off and the stuff that use to control it on the right hand side now selects which tanks you use? Just guessing here.. but I had the same problem, slide them two levers on the LHS with the red knobs and youll be good to go

The two red levers behind the throttles operate the fuel-pumps.

There are 4 fuel pumps, one in each tank.

The engines get their fuel from one of the two main tanks (frontal switch)

The rear tanks are reserve tanks and are used to fill up the selected main tank (rear switch).

The engines cannot feed from the rear tanks, only fom the main tanks.

Ok, that makes a little more sense. Since the red levers have 4 positions what should be standard procedure for fuel management? I'm also not clear on how you fill the main tanks via the reserve tanks.

You can just turn on all 4 pumps with the levers all the way to the front in the game now.

If the fuel flow is modeled correctly you can use the rear switch to choose wich main tank is refilled, middle meaning both.

That is only important when you have a fuel leak, to save as much fuel as possible.

Alright, I think I've discovered the problem.

When you set tank 4 to fill tank 2 it actually fills tank 3. This means that both reserve tanks feed engine 1, but only tank 2 will feed engine 2.

Just to get the names right.

Tank 1 -> front left -> main tank -> feeds both engines when selected
Tank 2 -> front right -> main tank -> feeds both engines when selected
Tank 3 -> rear left -> reserve tank -> feeds selected main tank when selected
Tank 4 -> rear right -> reserve tank -> feeds selected main tank when selected

Thats the way it should be afaik

Just to put in some more confusion:

There are eight fuel Pumps in a Bf110 C.

Two pumps per engine, which are engine-mounted and driven by the engine itself. These two pumps are operated by two units 'Brandhahn Armatur' which have three purposes: first to filter fuel from any polluntant, second they work as a deshydrator, third they operate as a fuel cock. These units are fuel-cock-wise operated by the two red-knobbed levers on the left of the pilot. The lever either closes both units (Brandhahn zu), opens unit one P1 (pump 1 can deliver fuel) unit 2 or both.
Brandhahnarmatur is 'A' in following picture
http://img14.imageshack.us/img14/440...lagebf110c.jpg
'B' is fuel line connector to engine driven fuel pump

So thats only 4 pumps, right!

The Bf110 has 4 fuel tanks, 2 in each wing. The forward tanks are maintanks which can feed the engines. The rear tanks are reserve tanks. To use the reserve tanks you have to use fuel out of the main tank first and then feed fuel to the main tank out of the reserve tank. (remember engines only can be fed from a main fuel tank!)
Even if one main tank is damaged both motors can be fed by one main tank. To this every fuel tank is equipped with one immersion fuel pump for transfer pumping purposes. The direction of transfer pumping is controlled by the two lever switch to the right of the pilot.
C4 and C7 switching logic should be:
°|°
°|° normal switching for use of main tanks, left engines fueled by left main tank and right engines out of right main tank.

°\°
°/° transfer from reserve tanks to left main tank

°/°
°/° transfer from reserve tanks to right main tank

°\°
°|° fueling both engines from left main tank, i.e. if right main tank is damaged

°/°
°|° fueling both engines from right main tank, i.e. if left main tank is damaged


Whether that is correctly simulated, we have to find out.

http://forum.1cpublishing.eu/showthread.php?t=27050

i am using key shortcuts to conrol fuel.
so i have set two keys, every is to toggle throug the fuel'cock' settings of one side.
#1 front, rear, both, none (left engine , or in single engines planes )
#2 front, rear, both, none (right engine)
These are the two left levers.

The right instrument panel, when i use my mousecursor, i get fuelcocknummbers like #3.
I dont think one needs them.

This game is good in simulation some things, but it does not simulate the reality 100% - i dont think it will ever, and i dont think too it cant - never expecting it !

Wow, thanks for that post ZG15_FALKE, now I understand the system.

Seems as though it's not properly modeled in game as the front switch has no neutral position.