Pilot: How long does it take to reverse the engine from full ahead to full astern? What is the harbour speed?

引航员：主机从全速前进到全速后退用多长时间？进港速度为多少？

youdao

Pilot: How long does it take to reverse the engine from full ahead to full astern? What is the harbour speed?

引航员：主机从全速前进到全速后退用多长时间？进港速度为多少？

youdao