109 e4 performance

[Al Schlageter]

Originally Posted by Crumpp

There are other ratings the engine was approved besides climb and combat power....

We know for a fact, C3 fuel was in use during the Battle of Britian.....

Automatik propellers (CSP) also were used during the Battle of Britian that were not in use in February 1939 as the the other data is dated.

Pick your poison....

No kidding!!!

If the speeds for Steig/Kampfleistung (1.23ata) are not met by the game 109 then there is certainly a problem with the speed of the game 109. Speeds should be check for Start/Notleistung (1.30ata) as well.

The Bf109E-1, -3, -4 with DB601A engines DID NOT use C3 fuel. They used B4 fuel. Only 109Es with the DB601N engine used C3 fuel. C3 fuel was scarce, unlike British 100 octane fuel, and was only at certain bases. The DB601N engine was not that reliable as was the quality of the c3 fuel.

Oliver Lefevre (109 guru):

"The Speed curve which appear in the Export manual" (Yugoslavia) "seems to have been made up... Keep in mind that it was an Mtt manual not an RLM one and that it was for export."

On 1.4 ata usage

"The technical documentation is quite clear that it should not be used at high altitude, that it put some extra strain on the engine and that only in cases were take-off run was an issue should it be used. This was primarily designed for fighter/bombers and bombers carrying heavier load on take-off, keep in mind that the 109 was not the only a/c relying on the 601."

On Bf109E production numbers

"Here is the data i have based on production blocks, there is probably some innacuracy in the E-7 / E-7/N and E-7/Z department...

E-1 = 1086
E-1/B = 107
E-3 = 1406
E-4 = 250
E-4/N = 20
E-4/B = 212
E-4/BN = 15
E-5 = 29
E-6/N = 9
E-7 = 419
E-7/N = 3
E-7/Z = 17
E-8 = 60
Total = 3633"

The Russian testing was with a DB601Aa engine powered Bf109E.