Working sails and methods for furling them while aloft

摘要

Working sails, typically headsails and mainsails, are furled while aloft by providing flexible sheet material extending along the sail from head to foot, at least preliminarily furling the sail from leech to luff, progressively forming the flexible sheet material into a tubular bag extending from head to foot and enclosing the furled sail, and progressively securing the bag against opening.