Y-LEGACY-L1.2

How the Y grades related to tonnage and power

Y-LEGACY-M1 · Understanding the legacy 'Y' scheme · Y-LEGACY-M1-A What the Y certificates were, how they mapped by tonnage and power, and how they relate to the modern SV scheme.

The Y grades were distinguished mainly by the size of vessel and the engine power they authorised, and by the level of responsibility. This lesson explains that structure and how to read any engineering grade.