The pilot reported that while conducting a touch-and-go landing in a tailwheel-equipped airplane, he "flared too high, touching down fairly hard." He reported that he attempted to abort the landing, the airplane departed the runway to the left, and the nose of the airplane impacted the ground coming to a stop. The airplane sustained substantial damage to the right wing, fuselage, and empennage.
The pilot reported there were no pre-impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.