It's time for us to install the stern post for ORCA! This is an important piece as it will have the propeller shaft going through it and it connects the keel to the horn timber above it, which runs all the way back to the transom of the boat. In this episode we're going to show you a little trick to help us mortise our timber into the keel with a chainsaw. Using two wooden guides and some socket wrenches bolted onto the chainsaw to control the depth, we can chew out the material in a fraction of the time it would take us with a hammer and chisel.