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A carrier’s flight deck should always be free of any debris. These objects can lead to increased maintenance and operating costs while also posing a significant threat to the safety of airmen.
To get rid of them, carrier crew members participate in Foreign Object Debris (FOD) walks. These are usually done at one end of the deck, with crewmen lined up across the width of the deck. They would then proceed with the FOD walk until they reached a certain point.
In circumstances where chemical, biological, or radiological warfare is concerned, the Navy uses its Countermeasure Washdown System. This system aims to mitigate damage and control the spread of hazards aboard the ship using seawater and Aqueous Film Forming Form (AFFF).
Meanwhile, Jet Blast Deflectors are located behind the soon-to-be catapulted aircraft to protect other planes from exhaust blast damage. These are raised or lowered by hydraulic cylinders or linear actuators.