More Horsepower The SuperSTOL XL Accommodates heavier engines: ENGINE: Titan X-340 Experimental Engine Series “The SuperSTOL XL is a larger version of the popular SuperSTOL. XL stands for eXtra Large. We have taken our traditional SuperSTOL, which is an awesome airplane, and added 24 inches to the fuselage and 6 inches on the nose to … Continue reading SuperSTOL XL