Skip to main content

Course Outline

Sound signaling devices: bell, horn

In periods of reduced visibility or whenever a vessel operator needs to signal his or her intentions or position, a sound-producing device is essential. The navigation rules for meeting head-on, crossing, and overtaking situations are examples of when sound signals are required.

These requirements apply to vessels operating on Kentucky state waters.

  • Vessels less than 16 feet long are not required to have a sound-producing device, but it is strongly recommended that these vessels carry a horn or whistle on board.
  • Vessels 16 feet to 26 feet long are required to carry on board a hand-, mouth-, or power-operated sound-producing device that is audible for at least one-half (1/2) mile.
  • Vessels 26 feet to 40 feet long are required to carry on board a hand-, mouth-, or power-operated sound-producing device that is audible for at least one (1) mile.
  • Vessels 40 feet to 65 feet long are required to carry on board a hand-, mouth-, or power-operated sound-producing device that is audible for at least one and one-half (1 1/2) miles.

These requirements apply to vessels operating on federally controlled waters.

  • Vessels less than 39.4 feet (12 meters) in length, which includes PWC, must have some way of making an efficient sound signal. Examples are a handheld air horn, an athletic whistle, an installed horn, etc. A human voice is not acceptable.
  • Vessels that are 39.4 feet (12 meters) or more in length must have a sound-signaling device that can produce an efficient sound signal. The sound signal should be audible for one-half mile and should last for 4 to 6 seconds.
  • Unit 4 of 6
  • Topic 11 of 19
  • Page 5 of 6