Alternatively , a single - handed sailor can lower the sail in stages and attend to the slack lines .
For non-emergency furling , it is preferable to drop the sail with two crew so that the slackening lines can be hauled in and maintained in order .
A single - handed sailor can lower the sail in stages and attend to the slack lines .
For non-emergency furling , it is preferable to drop the sail with two crew so that the slackening lines can be hauled in and maintained in order .