On August 1, 1996, at 1830 central daylight time, an Ultravia Aero International Pelican, C-FPWZ, sustained substantial damage during takeoff. The airplane departed runway 36 at Winneconne, Wisconsin. The pilot stated to responding authorities that he lost control of the airplane during the takeoff roll. The pilot and one passenger were not injured. The personal 14 CFR Part 91 flight was operating in visual meteorological conditions. No flight plan was on file. The flight was departing with an intended destination of Oshkosh, Wisconsin, at the time of the accident. The pilot in a statement to local authorities and in a written statement stated that he lost control of the airplane during the initial takeoff roll. The airplane exited the runway to the left and impacted a tree. An examination of the airplane failed to reveal any preexistent mechanical anomalies.