Spit IIa is now so much more inferior to the 109

[Kwiatek]

Yea you start again with prototypes and folder data not for serial planes. Serial 109 E test proff different results - 467- 475 km/h at 1.3 Ata (990 PS). Nothing new to me and no sense to disccussion these again.

BTW

109 T-2 with Db601N in May 1941 reached at 1.35 Ata 2600 RPM - 1175 PS ( maximum emergency power) 490 km/h at the deck.

So i think for 109 E-3/4 at 1.4-1.45 Ata ( 1- minut emergency power) it is possible 490-500 km/h at the deck for a while ( less then 1 minut) nothing more.

For comparsion serial Spitfire MK1 at +12 lbs could do 505 km/h at the deck but for longer time ( 5- minutes).