The G-10 construction program was an effort by the RLM to re-build existing airframes to a roughly comparable standard to the K-4.Unfortunately, sufficient DB605D powerplants were not available at 1st, so initially, most early G-10's were produced with the DB605AS powerplant (very similar to the DB605D, it had the DB603's larger supercharger).Later models, however, used the DB605DCM powerplant, as did the K-4.The letter 'C' in the engine nomenclature denotes that the engine is using hi-octane avgas.The 'M' denotes that an MW-50 methanol-water system is in use.So a DB605D using hi-octane gas & MW-50 was known as a DB605DCM.
You may have seen in many publications that the K-4 used the DB605DCM or DB605ASCM. Again, the DB605AS is very similar in output to the DB605D (there isn't a huge deficit in output) & a/c that use it have the same "refined" cowling without the MG 131 bulges.So, a DB605AS using hi-octane gas & MW-50 was known as a DB605ASCM.Also, the 'S'in DB605AS denotes the powerplant is modified & fitted with an enlarged blower. Does that make any sense at all?!?!
Btw, that's why you see the standard 109G-6 listed as using a DB605AM powerplant.It is simply a standard DB605A using MW-50.Several hundred G-6's & an even greater number of G-14's were re-engined with the DB605AS engine, these models being called the 109G-6/AS & G-14/AS respectively.
The DB605L would not have been used in the G-10 at any stage.As mentioned earlier, at most a couple of K-14 prototypes *may* have been built using this engine, but as the factory & test facility building the DB605L was destroyed by Allied bombing several months before the end of the war, no production models were built.Messerschmitt estimated the Me 109K-14's maximum true airspeed as being 452 mph at 37,730 ft.
I hope this was of some use to you.This info has come from various books & publications I own, most notably the Bf/Me 109 "bible" of sorts, William Green's "The Augsburg Eagle".
[This message has been edited by C_R_Caldwell (edited 02-08-2001).]
