[Foreman]

And another way to make the balance - ship size does not grow with the technology. Ex:
Ship Construction 1 : 150kt
Ship Construction 2 : 400kt
Ship Construction 3 : 800kt
Ship Construction 4 : 250kt with mounts, combat speed bonus and reduced maintaince
Ship Construction 5 : 600kt with mounts, combat speed bonus and reduced maintaince
and so on...