any vessel less than 65.6 feet in length
All vessels are required to have a sound producing device, such as a horn, whistle, or bell, that can be used to signal warnings or communicate with other vessels on the water.
On federally controlled waters, vessels such as recreational boats, commercial vessels, and certain larger vessels are required to carry a whistle, horn, or other means to produce an efficient sound signal. This requirement is outlined in the U.S. Code of Federal Regulations, specifically under Title 33, which governs navigation and navigable waters. The sound signaling devices are essential for safety, allowing vessels to communicate their presence, intentions, and maneuvers to others, especially in low visibility conditions.
On federally controlled waters, vessels that are 12 meters (39.4 feet) or longer are required to carry a whistle on board. Additionally, vessels less than 12 meters in length must have some means of making an efficient sound signal, which may include a whistle. This requirement is in place to ensure effective communication and safety on the water.
some means to make an efficient sound signal some means to make an efficient sound signal
The referee blew his whistle to signal that there was a penalty.
He blew a whistle to signal the start of the race.
The referee's whistle.
A short blast on the whistle to indicate intention to alter course to starboard (right) or two short blasts to alter course to port (left). This is commonly used by vessels when navigating in a narrow channel to communicate their intentions to other vessels in the vicinity.
3 long blast to the ship whistle.
In Oklahoma, all recreational motorboats are required to have a wearable personal flotation device (PFD) for each person on board. Additionally, boats that are over 16 feet in length must have a throwable flotation device, such as a buoyant cushion or a ring buoy. It is also mandatory for boats to have a sound-producing device, such as a whistle or horn, to signal distress or communicate with other vessels.
Because the men liked the signal.