The 18-footers of Sydney Harbour have been the dominant open boat racing class for over a century, and Wee Georgie Robinson's Britannia has been a big part of this community since 1919. Britannia raced hard for 23 seasons, then had a second life as a motor launch, then was restored for display at the Australian National maritime Museum where she can still be seen. Here is the 100-year story of the boat and the people around her.