This amazing footage shows the collision between Steve David in the U-1 Oh Boy! Oberto and Dave Villwock in the U-96 Spirit of Qatar in the Final Heat at the 2011 Lucas Oil Madison Regatta. Exiting the first turn, Villwock spun toward the infield in front of David, sending the U-1 into and over the U-96, barrel-rolling and landing upright in the Ohio River. Neither driver was injured.