The First Mate's Trainee Record Book is not divided into Class A and Class C. The First Mate's Training Record Book is only a record of the situation during the first mate's training, and it is a record book with no results. The trainee record book of the first mate of the crew is the quality of the crew and other factors. On the premise of ensuring safety and economy, repeatedly scrutinize, determine and pre-draw the route, and pay attention to the influence of wind direction, wind speed, wave direction, ocean current, rainstorm and storm on the navigation of this route.