Chief Culinary Specialist Luis Siguenza, assigned to the Los Angeles-class nuclear submarine USS San Francisco (SSN-711), waits for a signal to start a cornering exercise during the Military Sport Bike Rider Course (MSRC) on Naval Air Station North Island. The one-day MSRC provides specialized training tailored to military sport bike riders and focuses on the critical skill sets and decision making incumbent with riding high-powered sport motorcycles. (U.S. Navy photo by Mass Communication Specialist 3rd Class Bradley J. Gee/Released)