CARF Extra 330SC 3.1m 41% 290000CARF Extra 330SC 3. 1m 41% 290000 The Extra 330SC is the newest addition to the line of Walter Extra Flugzeugbau in Germany. It bases on the very successful Extra 300S and incorporates all the small changes, which had been done to the 300S over time, such as a more powerful engine, larger counter balance surfaces on the elevators and ailerons and a lot of other small upgrades. Most significantly, the 330SC has received a new, much more aerodynamic