🇬🇧 en ru 🇷🇺

taffrail log noun

  • (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.
 вертушечный лаг, гакабортный буксируемый лаг
Wiktionary Links