当今船舶的大型化不仅要求拖轮也随之大型化,而且需要有更多的拖轮进行拖航。同时,由于被拖的大船干舷增高,不仅拖轮与被拖船舶的带缆作业困难,而且危险性大,经常威胁着作业人员的安全。众所周知,过去用拖缆拖船首时,因是人工带缆,所以都是用两根直径28～38毫米的缆绳,有 The large size of today’s ships requires not only the tugboat but also the more tugboats to tow. In the meantime, not only are the tugs and towed ships difficult to operate but the cables are dangerously dangerous due to the increase of the freeboard of the towed vessels, which often threaten the safety of the operators. As we all know, in the past the first towed with a tow rope, because it is a manual cable, so are used two 28 ~ 38 mm diameter cable, there