“The sail force” is the first chapter of the on-line book ‘SAIL HANDLING AND TRIMMING’, with theoretical foundations that will help us to understand in a clear and simple way how the aerodynamic forces are generated in a sail, in order to obtain the maximum performance.

In this second chapter of the on-line book “SAIL HANDLING AND TRIMING”, we will see the application of the theoretical principles to the correct way of trimming a sail, and also the importance of sail draft for a correct trimming.

In order to sail effectively and get the most out of the sails in every wind situation, our sailboat must be well balanced. In this third chapter of the on-line book ‘SAIL HANDLING AND TRIMING’ we will see how to achieve this balance of forces.

In this new chapter of the on-line book ‘Sail handling and trimming’ we are going to remember the concepts of ‘real wind’ and ‘apparent wind’, the designation of the courses at which a sailboat sails, and some basic considerations on how to sail a sailboat in relation to the wind.

New chapter of the online book “Sail handling and trimming” in which we will see the control elements of the headsails (the tension of the forestay, the halyard, the position of the sheet traveler, and the tension of the sheet) and how to trim them in different wind conditions.

In this fifth chapter of the online book “Sail handling and trimming” we will see, in a practical and simple way, how to use the telltales for trimming the genoa (or jib) along with its control elements (sheet tension, position of the sheet car, stay tension and halyard tension).