澳洲幸运10全天在线计划免费简介:The speed of sail warships in this era was faster than ordinary civilian ships or merchant ships, about six to ten knots. When the wind and current are smooth, it can occasionally reach more than ten knots. Once there is no wind, it is basically about seven knots.
The speed of sail warships in this era was faster than ordinary civilian ships or merchant ships, about six to ten knots. When the wind and current are smooth, it can occasionally reach more than ten knots. Once there is no wind, it is basically about seven knots.