The boat is turned upright , and preparations are made to change the sheer planks .

With a level on the dashboard and a string down the centre of the boat a plumb bob to the centre of the keel verifies that the twist has been removed from the hull .

Next I steamed in a few ribs . The sheer line was marked on the new ribs and they will be used to spile and fasten in the new sheer planks .