How about simply increasing the weapon bank arc modifier for weapon damage.
If a ship takes weapon damage through the FF arc and has a weapon bank covering the same arc the hit increases the modifier by one. For example FF2 becomes FF3.

Welcome, if you have any problems with the ship construction there is usually someone looking in that could help.
If you decide to give Shipyard Nova a go and have any questions just ask, I look in every day or so. The spreadsheet was written with OpenOffice, which can be put on a flash drive. It is a handy way to keep everything needed together in one place along with your ship designs.

Paul

You should use the larger track to record shield damage from hits taken as it tells you the total shield strength now available. Ships can sometimes take a few hits before you have to reduce the individual facet strengths.
See picture.
Paul
[attachment=0]Faceted use..png[/attachment]

No you are not missing something, Stealth is not detailed in Klingon Armada starship systems (it is in later books - Alien / Distant Armada). My version is 1.1 April 2012 I have no idea if this has been included in the book since.
It is treated the same as ECM, for each level of stealth attacks suffer a -1 penalty to the weapon attack modifiers.
Only difference is that stealth cannot be reduced by damage the way ECM can.

The marker for a seeker is placed in the firing ship's hex to indicate where it was fired from (unless at a standstill the firing ship will no longer be in that hex when the attack is resolved next turn).

Paul

Austrian Janos Hunyadi (Merchant War) data does not tally with the ship graphics which show secondary guns and only eight light guns, however the stats in the book are rules legal and the ship size does not allow the secondary guns. I have amended the counters to bring the light guns up to 10 (2 guns underneath are side by side) and taken off the secondary guns just in case anyone actually cares.
Not wanting to waste anything, a sister class based on the picture in the book, Babenberg Heavy Cruiser.
Paul
[attachment=0]Iron Stars Data Austrian Babenberg class Heavy Cruiser.png[/attachment]
[attachment=1]Austrian Babenberg Heavy Cruiser is counter.png[/attachment]
[attachment=2]Austrian Janos Hunyadi IS counters.png[/attachment]

British Gamma class Destroyer point legal and matching the picture.

Paul
[attachment=0]Iron Stars Data British Gamma Destroyer.png[/attachment]

My core rulebook is version 1.1-April 2012, in pdf from RPGnow.com, which let you know if the files get updated.
I have the rules annex, printed version which is the one that you have.

The Klingon/Alien errata threads are for the admiralty editions.
The rules in the Annex are all pre SFU books.
The last appendix A covered what options are in which book up to Alien Armada, see: http://www.mj12games.com/starmada/appendixA.pdf
Distant Armada has Expanding Sphere Generators and Hydran Stingers.

Paul

1} As above
2) As above
3) Marines and Probes are treated as weapons and have ranges attacking ships with Directional Defences.
The +2 on mines, ya got me thar! Copy/Paste?
4) Only Piercing so far.
5) Use the shipyard converter to give an idea of what it would be in SAE and use the Nova figure.
If I really like a ship I use the AE shipyard first and then convert it to Nova (getting the SFO figure along the way).

Paul

No, the ESG/s are used against all Drone, suicide shuttle and hellbore attacks. They are only marked off the "specials" through taking damage. The number of ESGs carried determines how effective they are, Page 13 "For each ESG.....".
They are used in conjunction with the shields after hits are determined.
In Starmada they are defensive only.

Paul