Which engine/aircraft took the B4/C3 Fuel Mixture??

[harrison987]

I recently acquireda fuel hatch from a German Aircraft.

It is dark grey, and round, so for sure not Me109 or Fw190. Stencilled on the outside is B4/C3, indicting the type of fuel.

From what I recall, C3 did not appear until 1944. I know there are cases of late-war fighters with the B4/C3 mixture, however this is the first I have seen to indicate this (usually only one or the other were marked).

I was curious which engines could take this mixture...or by late-war, were all able to?

[Kutscha]

C3 fuel was used in DB601N engines in late 1940 and the BMW801.

[Ruy Horta]

Late war DB605D could take both types.

Some will give you better details, but the D-series had a number that could take either C3 or B4&MW50 mixes, to maintain high performance.

[Kurfürst]

Initially in 1944, MW-50 boosted DB 605s (AM, ASM) would run on C-3. Butch noted some time ago that by late 1944, they were too capable of running at high boost (1,7ata), but with B-4.

Early-war British reports speak of 92 octane fuel found in the tanks of LW aircraft, appearantly it was some sort of mix of B-4 and C-3, altough most of the planes could happily do with B-4. The DB 601N, of course, only run on C-3.
http://kurfurst.allaboutwarfare.com/...asheets_N.html

As Ruy noted, the DB 605 DB / DB 605DC (same engine with different settings) with either B-4 (DB) or C-3, with a confusing array of power outputs. http://kurfurst.allaboutwarfare.com/...eets_DBDC.html

Additionally, there were early D series engines marked with 'O' (ie. DMO), probably standing for Oktane, which could switch the fuel type readily. BMW 801D series engine also used C-3, and appearantly He 111H bombers in late 1944 also used C-3.


More stuff:
http://kurfurst.allaboutwarfare.com/...roduction.html
http://kurfurst.allaboutwarfare.com/..._Archieves.pdf


Can you post a picture of this fuel hatch, it sounds interesting.

[harrison987]

Hi guys,


The problem is that I know 100% it is not from a 605DB or DC. This is the first hatch I have seen with both indicated. Not Me109 or 190 due to the size and shape, so I am trying to determine what aircraft it is from. 262 is also ruled out.

[RT]

Noted that the 605D could run B4 1.8 AT. Model DB nd /or Model DC using C4 at 1.98 AT., different models are could be set "on the field" ?

Rémi