[klem]

Originally Posted by steppie

for me the new patch works well

I have been reading about some of the problem that some people are have and i dont have them.

I test the spit IIA today and manage to get to an altitude of 25300 feet.
I had no over heating in the climb using 2900 rpm to about 16000 feet then drop it to 2300 rpm and keep the climb to 25300.
yes the indicated airspeed drop as low as 130 mph but this is expected as the higher you get the lower the air density and a drop in the indicated air speed is expected.

what i did find is when you get above 17000 feet drop your rpm to between 2200 & 2400 rpm and trim your rate of climb to try and keep an indicated air of about 150 mph in the climb, the climb rate above 17000 feet is slow and this is to be expected.
also make small change to the rpm to keep them in control.
as for mixture I don't change.

How does that compare with this:
http://www.spitfireperformance.com/spitfire-II.html

Boost figures??