List of DB 605A engine construction numbers?

[schwarze-man]

Hi again,
The manufacturer id that seems to start with or incorporate a "7" in the batch part of engine number (apart from sevens in the actual serial) is as Tomislav listed earlier:
"Daimler-Benz Motoren GmbH (Genshagen Kreis Teltow)
Factory code hsq
Engine serial numbers:
7xxxx - A-1
007xxxx - A-1, B-1, AM, ASM, AS0, ASM0, G
117xxxx - D, DB, DM, DM0"

Cheers

SM

[Dénes Bernád]

I meant exclusively the engine construction numbers that include a slash (/). I enclose one such example, DB 605 No. 239/0118, from a Hungarian document from February 1944 (P.S. sorry, cannot find the image posting button anymore).

[schwarze-man]

Originally Posted by Dénes Bernád

I meant exclusively the engine construction numbers that include a slash (/). I enclose one such example, DB 605 No. 239/0118, from a Hungarian document from February 1944 (P.S. sorry, cannot find the image posting button anymore).

Hi again Dénes,
The use of the forward-slash (/) in the engine Werk-Nr is rare in all the 650+ engine database. There are only two examples of a / in that database and, they are 007/01188 and another early but obviously very corrupted one with 12 figures, 311002A/205-4.
The 007/01188 seems to be a mistake as it falls within many other engines in that range eg 00700933 that have 8 digit numbers.
The only note I would make, is that in this case the 007 is the manufacturer id and the 00933 is the serial number. Possibly the worker accidently added the / in error to the 007/01188 which should have been simply 00701188.
The convention of marking is consistent, the manufacturer id runs directly before the serial number on the engine Werk-Nr, as struck on the Baumusterschild and the many stampings on the engine components.
Also, within the 650 engine data, 007/01188 is the only / after the first 3 digits.
So, sorry that this is not much use.

SM

[Dénes Bernád]

Hello SM, there are too many occurences when a slash was an integral part of DB 605 A/B engines' construction number to consider it a clerical error. The explanation of this slash is what I am looking for. I will keep "digging" for an answer.

[schwarze-man]

Originally Posted by Dénes Bernád

Hello SM, there are too many occurences when a slash was an integral part of DB 605 A/B engines' construction number to consider it a clerical error. The explanation of this slash is what I am looking for. I will keep "digging" for an answer.

Hallo Dénes,
The / could have been used to demark elements of the series of digits that define a part. In the case of these engine Werk-Nr as defined by DB, they do consist of two parts, the manufacturer id and the production serial number. The id can be a single digit, two, three or four depending on the date and allocated manufacturer. The serial number of the motor is after the id but, there is no / to demark this construction of the full Werk-Nr. This is the evidence from almost all 650+ engines in the database and shows the marking of the Baumusterschild. However, it may be possible that clerical data was recorded differently by other contractors.

SM

[Dénes Bernád]

Dear SM, in these particular cases, the first three digits before the slash (there are too many to tell the slash is an error) are not identical, many of them are unique, so they are certainly not the manufacturer's identification, but rather an odd serial number, divided by the slash.
I need to "dig in" more, perhaps I will find a clue one day.

[schwarze-man]

It certainly seems that the Alfa Romeo production is missing from the Allied BIOS reports, similar to the Swedish production. Also, the A.R. 1000 DB601 5-digit numbers cover a large range of around 10,000 numbers in those examples, I think there is little doubt they must have been allocated small production block-numbers in that range.
The FIAT DB 605 is listed as 120 produced in '43 and 214 in '44 for a total of 334. The example block numbers given above range about 445 examples (ignoring the possible high number), which almost looks like it could be a continuous "block". There might be the possibility of the continued 605 production at FIAT in '45 not being reflected by the BIOS recording?
The whole subject of AS engine production is interesting. I have not found much detail about production but, the photographic record shows a lot of AS powered aircraft! There are one or two quotes about AS engines being built within the normal (German) 605 A production blocks, as though they made short runs of AS versions.
Thanks for the info everyone!

SM

[HGabor]

Hi folks, some more DB 605 engine numbers:
1) Bf 109 WNr 13438, CC+ZM, engine # 77265
2) Bf 109 WNr 13439, CC+ZN, engine # 76861
3) Bf 109 WNr 13440, CC+ZO, engine # 76854
4) Bf 109 WNr 13442, CC+ZQ, engine # 76875
5) Bf 109 WNr 13448, BC+VK, engine # 25562
6) Bf 109 WNr 13496, BC+VS, engine # 25554
7) Bf 109 WNr 13500, BC+VW, engine # 25516
8) Bf 109 WNr 13506, BJ+WC, engine # 25592
Cheers!

[schwarze-man]

Originally Posted by HGabor

Hi folks, some more DB 601 engine numbers:
1) Bf 109 WNr 13438, CC+ZM, engine # 77265
2) Bf 109 WNr 13439, CC+ZN, engine # 76861
3) Bf 109 WNr 13440, CC+ZO, engine # 76854
4) Bf 109 WNr 13442, CC+ZQ, engine # 76875
5) Bf 109 WNr 13448, BC+VK, engine # 25562
6) Bf 109 WNr 13496, BC+VS, engine # 25554
7) Bf 109 WNr 13500, BC+VW, engine # 25516
8) Bf 109 WNr 13506, BJ+WC, engine # 25592
Cheers!

Thank you HGabor,
I think these are all Bf 109 G-2 with DB 605 A engines.
Cheers

SM

[HGabor]

Yes, they were from a test