Kammala jumla mai zuwa: The Gunboat Sheds suna da alhakin wanzuwarsu da sunansu ga abin da ake kira gunboats wanda aka gina bayan da sojojin ruwa na Danish suka kama a Holmen Naval Base da Royal British Navy a ranar 21 ga Oktoba 1807. An yi amfani da gunboats a mataki na karshe na
Yaƙe-yaƙe na Turanci, yanzu ana kiranta da Gunboat War. An yi amfani da ƙananan jiragen ruwa a kan Royal Royal Navy. An gina shi don samar da kariya a ƙasa don jiragen ruwa lokacin da ba a amfani da su ba, an gina gine-ginen a cikin kimanin 1830. Kowane ɗakin zai iya ɗaukar jiragen ruwa guda biyu.