Pit sword

From Wikipedia, the free encyclopedia
Jump to: navigation, search

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.

See also[edit]

External links[edit]

References[edit]

  1. ^ "Underwater Log Systems". USS Bowfin Submarine Museum & Park. 2002. Archived from the original on 2006-08-25. Retrieved 2006-08-26.