The Osprey, with its two powerful tilting rotors, has a reputation for creating mayhem with its downwash. The Air Force uses the Osprey for long-range, special operations transport missions. A U.S. Air Force Osprey tiltrotor accidentally demonstrated what happens when you point 12,000 horsepower straight down: you blow away a helicopter helipad. The helipad, apparently made of rubber matting, was no match for the Osprey’s two Rolls-Royce engines. ➡ The incident took place on Wednesday at the Addenbrooke’s Hospital in Cambridge, the U.K. The helipad was used in a military exercise invo...