First graph from handbuch show speed at 1.3 Ata power - 5 minutes emergency but with old supercharger ( 4.0 km).
Blue and black line in second graph are for 30 minut power - 1.23 Ata. Grey line in second graph is for 1.3 Ata - 5 minutes emergency power but with new supercharger ( 4.5 km).
Worth to looke here:
http://www.ww2aircraft.net/forum/avi...ces-11171.html
and here:
http://www.ww2aircraft.net/forum/avi...nce-16139.html
As always devil is in details
