translation.en: It turned out that giving the planes to the museum was worth much more than the debt, so for five years, six years, I only had to pay one third income tax.
translation.zh: 后来我发现原来把飞机捐给博物馆， 不光能还债还有余。 因为接下来的五六年里，我都只用交三分之一的所得税。