All true, BRK however have now insisted that each of the contractor pilots operate through a company structure, this presents the opportunity for some tax planning as the earnings of the company and the earnings of the company are not the same.
If you are earning more than you spend every month why would you pay tax on it, either leave it in the company and use it to either invest or to provide for your pension.
What you can also do is plan for a year off. If you aim to accumulate a years pay in the company it means that even if you are out of work you will still get a monthly salary. It also allows you to take a year off and still receive a salary, paid out of the retained profits of the company.