Pit sword
From Wikipedia, the free encyclopedia
The pit sword (also known as a rodmeter) is a blade of metal or plastic that extends into the water beneath the hull of a nautical vessel. [1] It is part of the pitometer log, a device for measuring the ship's speed through the water.
[edit] External links
[edit] References
- ^ "Underwater Log Systems". USS Bowfin Submarine Museum & Park. 2002. Archived from the original on 2006-08-25. http://web.archive.org/web/20060825070849/http://www.bowfin.org/website/bowfin/bowfin_systems/log_sys/log_sys.htm. Retrieved 2006-08-26.
