FSX Extra 300S Castrol Repaint. If airplanes were horses, the Extra 300S would be a champion thoroughbred. It is, in fact, designed to be a champion in Unlimited class aerobatic competitions. The 300S combines light weight, a 300-horsepower engine, and exquisite control harmony in an aircraft that has won several World Aerobatic Championships. The Extra 300S is the aircraft of choice for Patty Wagstaff, one of the worlds top award-winning aerobatic pilots. Any questions or comments can be sent to danielwgraphicsatgma il. com This is freeware and is not intended to be used for any type of profit. Please consult the author before distribution of any kind.