To get Austrian net rates, you can use
the official calculator of the ministry of finance.
Basically 13th salary (usually paid end of June as a "vacation supplement" and 14th salary (paid end of November as a "Christmas supplement") are subject to full social security deductions but just 6% tax. (One could argue that pilot should be able to save for vacation and Christmas... This system is bound to stay as abolishing it would be viewed as a fiscal attack on the common man and therefore amount to political suicide. This is rather stupid as small incomes are not taxed that vigorously anyway, making the 6% tax rate most lucrative for earners of high salaries whose ordinary rate would be 50%.