Half Rater

The Trearddur Bay Half Rater fleet is one of the largest classic one design fleets racing in the UK, with over 30 boats at the club, we typically have around 25 boats racing in Cup Races. The boats are ideally suited to sailing in Trearddur and go well in most sailing conditions. On a light day you can race them with two on board and when it blows you can sail with five. They are very seaworthy and the highlight of our sailing calendar is the race to Holyhead and back. We even circumnavigate Anglesey in them. The Seabird Half Rater is the oldest one design class still sailing in Britain. It is a 20 ft carvel planked sailing boat, with a design dating back to 1898. To date there have been 106 built. The class has a Portsmouth Yardstick of 1100. The present day fleet is based in North Wales at Trearddur Bay and Abersoch and on the Mersey at Wallasey. 1979 saw recognition by the Guinness Book of Yachting that the Seabird Half Rater is the oldest OD Class still racing in Britain, and the Liverpool Maritime Museum hold the Association documents on loan.

Class Secretary

David Bangor-Jones – seabirdsec@tbsc.org


2006 2007 2008 2009 2010 2012 2013 2014 2015
Half Rater Average 25.4 23.1 25.7 22 24.1 21.4 22.1 20.9 22.7
Maximum 29 28 29 27 29 26 27 26 26
Total Boats Raced 31 30 33 33 31 29 30 30 30