If you have a tycoon you get a 50% boost in driller production in time but it is wrong.
Normal your factories produce 6 drillers every 8h
If you have 1 tycoon your factories produce every 5h30m
I calculate it and the real time they need to produce is 5h20m
8h = 480 minutes÷3×2 = 320 minutes = 5h20m