USAF Thunderbirds to Perform Flyover for the Daytona 500: For the fifth straight year, the world-renowned U.S. Air Force Thunderbirds will provide the flyover for the 57th annual DAYTONA 500 NASCAR Sprint Cup Series season opener on Sunday, Feb. 22. The Thunderbirds, officially known as the U.S. Air Force Air Demonstration Squadron, will fly their signature "Delta" formation over the "World Center of Racing" during the finale of the national anthem for "The Great American Race." The Thunderbirds have visited Daytona International Speedway to perform the flyover for the DAYTONA 500 for the past five years. In addition, the Thunderbirds...