Speed graphs for Spitfire and Hurricane

[Kwiatek]

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