I found this post on the Wotc site about Stock Ships and figuring some of their stats.
Here we go:
I thought this might help a few people out.
Quote:
Originally Posted by FAQ THREAD
Q: How would a PC or unique crew affect a vehicle's stats? Which bonuses would it give?
A: You determine the following stats in the following way (in order of statblock appearance):
Vehicle Initiative = Your Initiative modifier (or Pilot modifier if you are trained) + Vehicle Size Modifier + Vehicle Dexterity Modifier.
Perception = Your Perception modifier.
Reflex Defense = 10 + your character level (or vehicle's armor bonus) + vehicle's Dexterity modifier + vehicle's size modifier.
Attack Rolls = Your base attack bonus + vehicle's Intelligence modifier + miscellaneous bonuses (point blank shot, weapon focus, etc.) + 2 (if trained in Pilot and firing Pilot controlled weapons from the Pilot's position).
Base Attack Bonus = Your base attack bonus.
Grapple = Your base attack bonus + vehicle's size modifier + vehicle's Strength modifier.
Skills = Your appropriate skill modifiers ( + vehicle size modifier + vehicle Dexterity modifier in the case of Initiative and Pilot checks).
The above is what I garnered from reverse engineering the stats of several vehicles. If it is not listed above, it is either not affected by having a unique crew or is explicitly spelled out in the book already (such as determining the Fortitude Defense). Also note that you use the stats of the appropriate character. For example, to determine Perception, you would most likely use the Sensor Operator's skill modifier; for attack rolls, you would use the base attack bonus of the person in the gunner position; etc.
Please, be sure to help contribute questions or discussion to the Errata thread (stickied to the top of the Mess Hall forum) and/or the FAQ thread (also found in the Mess Hall, just a little lower).
The more info we get into these two threads, the better the official Errata and FAQ documents will be when they eventually come out. Thanks!