According to the pilot of the amateur-built Vans RV-8, he landed the tail dragger airplane at his home airport with a 200-pound passenger in the rear seat, but with the center of gravity within limits. Winds were 60 to 70 degrees from the right, at 15, gusting to 20 knots. The pilot elected to use "half flaps" due to the winds, and the airplane touched down at 85 to 90 miles per hour behind a protective row of condominiums and trees. Upon emerging from behind the protective row, the airplane was "suddenly" hit with a strong wind gust that turned it 45 degrees to the right, toward a tree and hangars about 30 yards beyond the tree. The pilot applied left rudder and left brake, but was unable to turn the airplane. The airplane continued off the runway, into a cable barricade and ground looped, resulting in substantial damage to the left wing and fuselage. The pilot also noted that there was a skid mark from the left tire at least 120 feet long, and that he would have been unable to abort the landing from where he lost control.