After about four attempts, my pilot son says that the orange is about right - 20 parts Tamiya Orange to 3 parts red. Now to let it harden so that I can mask off the orange and paint the white. The cabin windows are masked with liquid mask.
After much masking of the orange, it’s time to paint the white parts of the fuselage. Two coats down. At least one more to go, with a a light sand with 3000 grit between, I think.