You are especially proficient with one type of vehicle.

Benefit: Choose a vehicle type (general purpose surface, heavy wheeled, powerboat, sailboat, general purpose aircraft, heavy winged aircraft, heavy hover vehicles, helicopters, jet fighters, ultralight spacecraft, light spacecraft, medium-weight spacecraft, heavy-weight spacecraft, or super-heavy spacecraft). When you are in control of a vehicle of the specified type, you gain a +2 competence bonus on skill checks, ability checks, and saving throws involving the vehicle.