Posted by Magnus Smith on August 10, 2014 at 10:38:53 user Magnus.
In Reply to: Amazon and Scarab's keels/hull bottoms posted by Chris Rosindale on August 10, 2014 at 09:40:47:
Amazon/Scarab did have a 'skeg' at the stern, which is like a very short version of Swallow's long keel. It protects the rudder and aids steering a little. Some older boats had a skeg as deep as the bottom of the rudder blade. Others not so much.
Have a look at the plans of Scarab in The Picts and the Martyrs as that will show the keep protrusions.