Electronic Attack Squadron One Two Nine (VAQ-129) is the United States Navy and Marine Corps' only EA-6B Prowler and EA-18G Growler training squadron. Known as the Vikings, they are a Fleet Replacement Squadron, or FRS, and are charged with training all EA-6B and EA-18G aviators and developing standard operating procedures for the maintenance and operation of the aircraft. The squadron is permanently stationed at Naval Air Station Whidbey Island, in Puget Sound, Washington. Beginning in June 2008, VAQ-129 began transitioning to the Navy's next generation electronic attack aircraft the EA-18G Growler.