RE: Correct Paint Thinning
For airbrushing with those little 2oz Acrylics that have the viscosity of butter I like to mix 50/50 paint to Windex. If I use water these paints tend to dry on the tip of the needle and cause splattering. The Windex seems to prevent this. I haven't tried it with a spray gun and normal paint.
You may want to do alot of test painting and try out diffrent mixes before you spray the FOCKE-WULF TA-152H1.