Originally Posted by
Mehangel
From what I can tell, the vehicle system from Ships of Skybourne calculates their armor class as follows: Size (SoS, pg 5) + Maneuverability (SoS, pg 6) + Armor (SoS, pg 33-34).
Additionally the pilot may use the Defensive Piloting piloting maneuver to further increase your vehicle's AC for the round (SoS, pg 11). Remember when making this piloting maneuver to add your vehicle's maneuverability skill bonus.
But no, I don't think you can (with SoS) just add your skill bonus to AC.