Arcadia is a fictional spaceship (space warship) developed by engineer Tochiro Oyama shortly before his death and given to Captain Harlock. It is also assumed that the ship's creator managed to convert his consciousness into the ship's main computer before his death, making Arcadia a part of a cyborg of gigantic proportions. The length of the vessel is approximately 400 m, 290 m wide and approximately 160 m high! Furthermore, the unit has very modern electronic equipment and has - inevitably - a lot of autonomy. Only about 40 crew members are needed for this huge vessel. Arcadia is also presumed to have powerful armor and weapons consisting of pulsars, vibrations, gravity guns, and torpedo launchers. The battleship Arcadia is part of the "Captain Harlock" comic and manga universe created by Japanese cartoonist Leiji Matsumoto.