Backing to performance of 109 expecially speed performance.

Reading most avialable data we should me very carefull expecially if there are not original data.

But even when we have orginal data and test ( i pass propaganda ) we also should be carefull expecially if we dont know condition of test and other details.

Here is example about F-4 perfomance. I get it from "Kurfurst forum":

"It looks to me that Rechlin's figures for the bf 109 f4 in this site are not compressibility corrected.

Rechlin's figures give:

537 kmh @ sealevel

670 kmh @ Full throttle height

For a max power of 1350 bhp

The IV/78/42 data which is compressibility corrected gives:

523 kmh @ sealevel

635 kmh @ Full throttle height

For a max power of 1250 bhp

The IV/43/42 data not corrected for compressibility gives:

526 kmh @ sealevel

660 kmh @ Full throttle height

For a max power of 1250 bhp.

Rechlin's figures are proportional to the IV/43/42 data which is NOT corrected for compressibility. Therefore, it seems clear that rechlin data is not compressibility corrected due to the accelerated increase in speeds at higher and higher alt compare to IV/78/42 data which is corrected for compression.

If corrected, rechlin's figures should give about:

537 kmh @ sealevel

645-650 kmh @ Full throttle height. "

http://kurfurst.org/Performance_tests/1 ... lated.html

And speaking about turning times we have only russian data which was:

Bf 109 F-4 ( left - right turn)

19,6 - 20.5

Bf 109 G-2

20- 21,5

So G-6 should be worse but we dont have detalied info. Probably it coud be:

21-22,5