So, one of the (minor) complaints I've heard from players regarding Iron Stars is the rolling of d20s for damage location. It does seem to be the part of the game that slows down the most, although it's not that big a deal in practice.
However, I've been thinking about alternatives, and I was wondering if something like this might be an interesting option (Silent Death vets may find this rather familiar... ):
First, determine the number of hits it "should" take to kill the ship -- this is done by dividing the hull size by the chance of scoring hull damage. As an example, let's take the Senjo, which has 12 hull points and a 9/20 chance of scoring hull damage -- 12 * 20/9 = 240/9 = 26.7, rounded off to 27. This is the number of boxes on the damage track.
Next, place an "X" in the last box of the track. When this box is crossed off, the ship has been destroyed.
Now, we need to place armour (A), thrust (T), primary (P), secondary (S), and light guns (L) on the track. For each category, add one to the number of that item and divide into the number of boxes on the track, rounding UP. For example, Senjo has armour 2, so divide 27 by 3, resulting in 9. Now, count this number of boxes in on the damage track and place the appropriate letter in that box and repeat. Thus, there should be an "A" in the 9th, 18th, and 27th boxes of the track. If there is already a letter in the box, move to the next available box -- therefore, since there's already an "X" in the 27th box, the third "A" is not placed.
Continue until all letters are placed; the Senjo's track would then look like this ("_" is an empty box):
_-_-L-T-_-P-S-T-A-L
_-T-P-S-L-T-_-A-P-T
S-L-_-T-P-L-X
When the ship takes damage, instead of rolling d20s for location, simply cross off the appropriate number of boxes. When a box with a letter is crossed off, you also cross off one of the appropriate systems. For example, if Senjo took 6 points of damage, she would lose one light gun, one point of thrust, and one primary weapon.
Whaddaya think?