Lee Helm/Weather Helm Part 1-- Center of Lateral Resistance, Center of Effort

This is the first installment of a short four part series. Part 1 defines the Center of Effort and the Center of Lateral Resistance which are key elements in undertanding the forces that create Lee Helm and Weather Helm.
Part 1: Center of Effort, Center of Lateral Resistance -- "Cockpit Tutorial."
Part 2: Impacts of Lee Helm and Weather Helm shown on a schematic -- "Cockpit Tutorial."
Part 3: Impacts of Lee Helm and Weather Helm shown on a small model of a sail boat -- "Cockpit Tutorial."
Part 4: Impacts of Lee Helm and Weather Helm while actually sailing with Jib only and Main only.