Speed graphs for Spitfire and Hurricane

[Kwiatek]

Originally Posted by Kurfürst

The papers you have posted clearly state that the results were not adjusted to the nominal engine outputs. They are not performance test but comparison flights with various installations (guns present/not present, slats sealed/unsealed).

Where you find it that there is lower engine outputs???

In these documents - German documents there is clearly 1.3 Ata and 1/4 radiator open. And these is serial production planes.

Originally Posted by Kurfürst

And in all likelyhood, they are all done using the high altitude blower (FS gear in English terms) for the trial.


The flight test results. I see a trend here. The three test you have posted we know that they were done at a lower boost setting, with the results not having been corrected to guaranteed engine outputs, and we do not know if, during the tests, they used MS or FS gear.

From where you get these about MS or FS gear??? 109 E had hydraulic supercharger which surly was not used in V15 prototype nothing more.

Originally Posted by Kurfürst

Serial 109 E-1/ E-3 speed at the deck for 1.35 Ata was 500 km/h. Don't argue with me, argue with Willy Messerschmitt who sold these planes and guaranteed in the contract that each and every one of them will do within 5% tolerance of 500 km/h.



No, 500 km/h is the official specification for the serial produced Bf 109E.

I would really like to see your speed charts for SERIAL 109 E which confirm these beacuse until now i didnt saw any. But for contatry i saw many which show 467-475 km/h not more.

Originally Posted by Kurfürst

My source, which I already posted, says the 109E could do 497 km/h at 1.35ata, with 1/4 open radiators, without overheating.

For prototype 109 V15 yes with no hydraulic supercharger. But next serial production 109 E tests speed didnt copy these.

Moreover other county (Swiss, French, US) speed test for serial 109 E confirmed German test for serial planes.

Originally Posted by Kurfürst

I'd like to see your source which contradicts that.

You alreay saw it page before. German documents from test speed for SERIAL planes not from one prototype and german prospect.