taffrail log in Finnish
taffrail log in Finnish
laahusloki
(nautical) A mechanical device dragged from the stern of the vessel that indicates the vessel's speed through the water; usually consists of a propeller, a reading unit and a stiff line connecting them.
patenttiloki
(nautical) A mechanical device dragged from the stern of the vessel that indicates the vessel's speed through the water; usually consists of a propeller, a reading unit and a stiff line connecting them.