Author Topic: Fuel tank sequence in the FW190 (Read 600 times)

Naudet · « **on:** August 27, 2002, 02:46:57 AM »

1st thing, is the fuel tank sequence in the AH FW190 still FWD-AFT (or AUX-FWD-AFT in A8), if yes it is wrong.

I got to read a report on the fuel system of the FW190, and the system worked in the following order:

DROP-AFT-FWD

the fuelpump would only be able to use the FWD tank if the aft was totaly dry.
This also matches the behavour of most FW190 AH jockey that manually switch to AFT 1st and than go back to FWD when the AFT is down to 25%.

So HTC should change the FW190 fuel tank sequence to its historical correct order.

devious · « **Reply #1 on:** August 27, 2002, 03:57:56 AM »

I second that.

Hristo · « **Reply #2 on:** August 27, 2002, 04:19:21 AM »

Lazerus · « **Reply #3 on:** August 27, 2002, 04:29:32 AM »

I've always heard and flown...ext,aft,fwd on 190's

Nilsen · « **Reply #4 on:** August 27, 2002, 05:13:17 AM »

i use aft, ext, fwd..so il aggree

still suck in it, but suck less if i empty aft first

Duedel · « **Reply #5 on:** August 27, 2002, 08:24:44 AM »

Yep plz plz plz HTC change this, would be really great.

Kubwak · « **Reply #6 on:** August 27, 2002, 09:05:15 AM »

when taking off in my target-drone-dora, i switch to aft tank then cruise around. i just hate it when i'm in a furball and the engine suddenly dies, oops forgot to switch it back to forward.

i hope this wouldnt be too much of a problem for HT to modify fuel tank order of usage, in the next patch coming out in 2 weeks ya'll think?

HFMudd · « **Reply #7 on:** August 27, 2002, 09:20:04 AM »

Punt.

ra · « **Reply #8 on:** August 27, 2002, 09:30:36 AM »

Are you saying the Fw-190 had automatic fuel tank switching? Or just that the automatic switching in AH is different from RL pilot practices in the 190?

A similar situation exists with the F4U-1, where the main tank is used before the wing tanks. I believe in RL the wing tanks were used first. The answer is to not use the AH automatic tank switching.

fats · « **Reply #9 on:** August 27, 2002, 11:03:40 AM »

He said Fw 190's fuel pump wouldn't work in the order it does in AH that it simply wasn't possible. AFT _had_ to be used first before the fuel in FWD could be used.

// fats

moot · « **Reply #10 on:** August 27, 2002, 12:59:31 PM »

Sucks to always have to work harder for lesser results than almost every other fighter pilot out there.

Furious · « **Reply #11 on:** August 27, 2002, 01:34:48 PM »

Quote

Sucks to always have to work harder for lesser results than almost every other fighter pilot out there.

Are you kidding? How freaking hard is shft F?

I prefer it the way it is. I like more to do.

F.

bockko · « **Reply #12 on:** August 27, 2002, 01:37:57 PM »

can't we get a shortcut for shift-f? its alot to type.

Naudet · « **Reply #13 on:** August 28, 2002, 09:44:31 AM »

Auto-tank sequence in AH should be historical correct, and in the FW190 the real order also optimizes the CG.

Or HTC should just give us the oportunity to "program" our own fuel tank sequence, this would also be fine.

@ra: yes the FW190 had some kind of "autoswitching". I try to describe it here.

Internaly the FW190 had FWD and AFT tank (in later versions an internal AUX tank was optional, but i will not include it here) and externaly one DROP tank.

The fuel system would use up the following way.

DROP-AFT-FWD

and the system worked the following way:

The mainfuelpump sucks the fuel through two fuellines (one from each tank).
With a second fuelpump the fuel from the DROP tank is pump into the aft tank, so if fuel is used from the AFT tank it will be immediatly supplemented as long as there is fuel left in the DROP tank.
And also the mainfuelpump pumps more fuel than the engine can use up, the excess fuel is redirected to an unidirectional restrictor valve (hope that is the correct term) that closes the fuel line to the FWD tank as long as there is still fuel coming from the AFT tank.
This ensures that the FWD is not used before the AFT tank is empty.

This way, the order DROP-AFT-FWD is ensured.

Also you can see that the fuel system will not lead to any fuel shortness through a shot through tank.
If DROP is hit, it will simply not give any more fuel to AFT and AFT will be used up.
If AFT is hit, it will be used as long as there is fuel left in it, than the system switches to FWD.
If FWD is it, it will never be used, but AFT will also not lose any fuel, as there is not direct connection between FWD and AFT.

Seeker · « **Reply #14 on:** August 28, 2002, 09:52:22 AM »

Naudet, are you related to RAM?