What does taffrail log mean?

taffrail log in AZ Dictionary

(n) identify patent sign.
(n) A mechanical unit dragged from stern associated with vessel that suggests the vessel's rate through the liquid; frequently contains a propeller, a reading product and a stiff line linking them.
(n) a cigar-shaped sign with rotary fins that gauge the ship's speed

Related Sources

  • Synonym for "taffrail%20log"
    • patent log
  • Hypernym for "taffrail%20log"
    • log
  • Cross Reference for "taffrail%20log"
    • chip log
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