HMS Arno (1915)

HMS Arno was a unique destroyer of the Royal Navy that saw service and was lost during First World War. She was under construction in Genoa, Italy for the friendly Portuguese Navy as Liz in 1914 when she was bought by the Royal Navy for service in the Mediterranean. As such she joins the Town-class of the Second World War as the only other Royal Navy destroyer type not designed and built in the United Kingdom.

She had two funnels and masts and four QF 12-pounder guns, shipped sided on the forecastle, behind the second funnel and on the quarterdeck. Although much smaller and slower than her British contemporaries, she was soundly built and had a high freeboard and tall bridge, making her a useful vessel. She was lost off the Dardanelles after a collision with the Acorn- / H-class destroyer HMS Hope (1910) on 23 March 1918.