Itemlevel Ⅰlevel Ⅱlevel Ⅲ

Gearbox4hr [Theory]8hr [levelⅠ+Practical]16hr [LevelⅡ+troubleshooting]

P.T.O4hr [Theory]8hr [levelⅠ+Practical]16hr [LevelⅡ+troubleshooting]

Steering4hr [Theory]8hr [levelⅠ+Practical] 

Thruster4hr [Theory]8hr [levelⅠ+Practical]

Control lever4hr [Theory]8hr [levelⅠ+Practical] 

Watermaker4hr [Theory]8hr [levelⅠ+Practical] 

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