Leech: The trailing edge, all-around twelve ft, although this isn’t strictly measured in a few class policies. Each are legendary within their respective areas, but their structure tweaks mirror distinct priorities and environments. Historic designs from Charles McGregor’s 1939 Rudder magazine write-up are referenced widely; you would possibly uncover reprints https://www.whofish.org/Default.aspx?tabid=45&modid=379&action=detail&itemid=310505&rCode=18