在大桅作业时采取附加安全措施。
然而，通常单桅艇被认为不如百慕大帆有力，因此在现代帆船中使用得很少。
Generally a cat rig is not considered as powerful as a Bermuda rig, however, and is more rarely used in modern boats.
帆船运动中船按其帆和桅杆不同而分类，如单桅多帆船，双桅或三桅纵帆船，双桅船，及大双桅船。
The sailing boats are grouped according to their sails and masts, such as sloop, schooner yawl, and ketch.
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