Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The W and Z class was a class of sixteen destroyers of the Royal Navy launched in 1943 1944. They were constructed as two flotillas, with names beginning with "W-" and "Z-", respectively, although, like the preceding U and V class, two of the flotilla leaders were named after historical naval figures (as had been Royal Navy practice during the inter-war years). They were known as the 9th and 10th Emergency Flotilla, respectively and served as fleet and convoy escorts in World War II. None were lost during war service.