Lusitania and her sister-ship Mauretania were originally fitted with three-bladed propellers. In 1908 Mauretania had a new set of four-bladed propellers fitted, which immediately improved her speed.
Credit: wikimedia commons / Olaf Tausch cc by 3.0 In regards to places to which he could not travel, the ancient Greek geographer wrote about Gaul, England, Ireland, Iberia, Maurousia (Mauretania ...