I've made a start at roughing out the centreboard using a profile guide and circular saw. This is one job I've been avoiding due to the time, noise, foil profile and sawdust. So far it seems to be going okay. I will use a small hand plane, straight spoke shave and sandpaper to get the final shape.
Profile guide, Bosch circular saw and all important box of tissues. I have the flu.
Roughing out the basic profile. I will clean up the shape later with hand tools.