Traverse board
The traverse board is a tool formerly used in dead reckoning navigation to easily record the speeds and directions sailed during a watch. Even crew members who could not read or write could use the traverse board.
The traverse board is a tool formerly used in dead reckoning navigation to easily record the speeds and directions sailed during a watch. Even crew members who could not read or write could use the traverse board.
The traverse board is a tool formerly used in dead reckoning navigation to easily record the speeds and directions sailed during a watch. Even crew members who could not read or write could use the traverse board.
Source: Wikipedia "Traverse board" · CC BY-SA 4.0
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