An Aviation Boatswain's Mate (AB) is a professional sailor in the United States Navy who is responsible for the handling, maintenance, and launching of aircrafts on aircraft carriers and other naval ships. They work as a part of a team and are responsible for the safety and well-being of aircrafts and personnel. ABs play an important role in the launch and recovery of aircrafts on the flight deck of aircraft carriers and other naval ships. They also work on the flight deck as safety observers, directing aircrafts during flight operations and ensuring that aircrafts are properly secured and maintained. In addition to flight deck operations, ABs are also responsible for aircraft handling equipment and systems, such as arrestor gear, elevators, and catapults. They also perform routine maintenance on aircrafts and equipment, and are responsible for the safety and well-being of aircrafts and personnel.