The pilot reported that during the descent for a touch-and-go landing, the airplane was not descending and he noticed that he was high on the approach. The pilot trimmed the airplane for a more nose down attitude and extended the flaps to 40o. Throughout the descent, the pilot had a difficult time controlling the airplane as he experienced updrafts and a tailwind. After passing the touchdown point on the runway, the airplane stalled and landed hard on the runway, bouncing several times.
The airplane sustained substantial damage to the engine mount assembly.
The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.