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Step 4: Alternatives 第四步:备选⽅案


The inward journey should be predictable even with the predicted wind strengthening. As the tide is flooding, the wind and tide are together so the sea will be flat, and Tom will reef to reduce power. However, the wind and tide in the morning could make the sail out through the entrance to Namley Harbour a bit choppy. Therefore Tom plans to wear more clothing, stows the equipment well and can abort the trip if he feels continuing out through the entrance is too difficult. If conditions are too rough, Tom plans simply to turn around early and broad reach back to Chidham Marina, but could call into Western Point for his picnic and walk before the tide turns and he can have a short sail to Chidham Marina.


返程应该是可预测的,即使预报⻛⼒会增强。随着涨潮,⻛与潮同向,海⾯会相对平 稳,汤姆需缩帆减少动⼒。但是,早上的⻛和潮流不同向,从纳姆利港驶出可能会有 些颠簸。因此,汤姆计算多穿些⾐物,妥善存放设备。⽽且,如果感觉驶出港⼝过于 困难,他准备随时中⽌航程。如果条件过于恶劣,汤姆计划提前返航,侧顺⻛航⾏返 回奇德姆码头,也可在潮汐转向前,在⻄岬(Western Point)短暂停留,享受野餐 和散步,然后再短途航⾏⼀段回到奇德姆码头。


Though no overfalls (rough seas) are shown on the chart, it would be wise to approach the exit and entrance to the harbour with caution in case there are strong tidal eddies as mentioned in the almanac.


尽管海图上未显示有急流(湍急海况),但根据航海年鉴中提到的强潮流漩涡,在靠 近港⼝的进出⼝时应⼗分⼩⼼。


On the other hand, if the sea breeze does not materialise due to cloudy weather, Tom may find the breeze remains southerly and have an easy return trip with the tide behind him.


另⼀⽅⾯,如果由于多云天⽓,没有海⻛形成,汤姆可能会发现⻛向仍然是南⻛,他 在回程时可以顺潮⽽⾏,轻松返航。


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