For begginers amount of ship design is not a problem, but as you progress, amount of ship design starts to increase and finding them can be annoying sometimes.(accelerator, scrappers, tanks, attackers and etc.)
I would suggest few options for Military Screen:
1) Sorting feature that would allow to sort by ship model.
2) A highlight button that would light up ships of certain model or darken those that are not the model you picked.
3) Toggle option to separate ship hulls into different windows.
4) Amplitude Studio way to track all your ships designs :D