EVE New Citizens Q&A

It reads in ship description so for example:

Astarte

Traits
Command Ships bonuses (per skill level):
10% bonus to Medium Hybrid Turret falloff
7.5% bonus to Medium Hybrid Turret rate of fire
3% bonus to Armored Warfare and Skirmish Warfare Links effectiveness

Gallente Battlecruiser bonuses (per skill level):
7.5% bonus to Armor Repairer amount
7.5% bonus to Medium Hybrid Turret damage

Role bonus:
Can use 3 Warfare Link modules simultaneously

for each level of command ship skill you would get a max of 5x the amount of primary bonus amount of a ship assuming you would have command ship V
Since Astarte requires that you have trained Gal BC at V you would automatically get 5x amount of secondary bonuses.

Only ship skills listed in ship description counts toward the bonuses in description, the rest of the bonuses you have from skills come from elsewhere.
And the way skills in EVE work is that similar skills are stacking penalized with the highest % bonus being applied first and then the second lowest bonus until 4th skill bonus gives around zero 0 net effect.

This old thread should help a bit with the math involved http://oldforums.eveonline.com/?a=topic&threadID=1571704

Well...

Keep in mind that ship / module bonuses come in 2 variaties.


A. The flat out, simple, fixed bonus.

B. The skill dependent bonus, that increases with each level trained.

While your question has been answered, here's some advice. The ship skills (like Caldari Frigate or Amarr Battleship or Heavy Assault Cruisers) are usually among the skills that give the biggest improvements to your ability to use that category of skills.

I'm not saying to take them to 5 ASAP, but you do want that as a medium term goal for any ship class you fly regularly.