Some US Navy GUPPY and Fleet Snorkel submarines wore a grey paint scheme on their upper hull, deck, and superstructure. Included here are liveries for five such submarines: USS Requin (Fleet Snorkel), USS Pomodon (GUPPY I/II), USS Remora (GUPPY II/III), USS Sea Fox (GUPPY IIA) and USS Volador (GUPPY II/III).