Meaning of AS in DB605 AS

[D.B. Andrus]

Thanks, SM.

[schwarze-man]

Hi again DB, It is interesting exactly what the S did stand for? Of course, your question about "Sonder" is valid but, I have not seen any original description for that meaning. It is also interesting how the later changes to the 605AS seem to have been incorporated. The addition of Water-Methanol injection MW50 (starting around May '44) was followed by the addition of the M suffix to give 605ASM. This was similarly matched by the same suffix to MW50 equipped 605AM and 605DM. By December '44 the 605DM was superceeded by the 605DB and DC, where the "M" suffix was dropped, although the engines were fitted with the equipment. Similarly, the early '45 605ASB and ASC appeared, also equipped with MW50 but not with an "M" suffix, although some modern writers have sometimes added one. Cheers

SM

[schwarze-man]

This got me thinking and I have done some research of my data. Perhaps surprisingly, there does not seem to be any explanation about the "S" letter of the DB605AS designation in the AS documentation that I have. The usual description is the simple phrase "the DB605AS is the DB605A fitted with the larger supercharger from the DB603". Specifically, the supercharger is similar to the one from the 603A, the 603 also coming in later versions with it's own even larger supercharger(s), including a 603AS version.
Now, in documentation of DB engine developments, I notice that the term "Super Lader" being used for developments of their superchargers. The Germans refer to the supercharger unit as the "Lader", so the term Super-Lader is quite satisfactory and, I think that it is possible that the development of the DB605A with the larger "Super-Lader" would be termed the DB605AS. Cheers

SM