I've started my program for doing general design of warships

I have started work on a program to do general design of warships. I have a list of things that I would like to have in my program: Hull weights (don't limit weights to what is available):

1. be able to calculate the weight of a hull that is strong enough, but lightly built
2. be able to calculate a hull weight that is of typical strength and weight
3. be able to calculate a hull weight that is stronger than needed
4. be able to deal with destroyer and scout cruiser hulls

Armament:

1. specify gun characteristics
2. specify gun mounting

Armor:

1. allow for two armor decks
2. allow for funnel base armor
3. allow for guns to be in turrets, casemates, batteries, open mounts, "en barbette", single mountings with shields

Speed:

1. use my power curve calculations based on The Speed and Power of Ships
2. use electrical load in calculating cruising range

This is a start on the specifications. I will be augmenting and modifying this list, as I proceed on my implementation