It’s 5k day one, 26k after OE, 10K after one year. As far as what you’ll get after taxes that varies based on state and benefits. Contrary to what 90% of pilots acting as amateur accountants might think bonuses aren’t taxed at a higher rate than regular income. However, they may be withheld at a higher rate. Rough guesstimate is about 3k on your first, 16k on the second and 6k on your last.

Not sure where 57k came from.