What am I doing wrong with the spitfire ?

[mattag08]

I don't see what the problem is. While Coarse pitch is supposed to be for cruising, I just run fine pitch all the time with the radiator opened about 50% and no issues whatsoever. If anything needs correcting its the mixture control, it's completely broken. Auto-mix doesn't work above 10k ft and auto-weak just causes the engine to cut regardless of flight parameters.