Dock Talk 0

Deciphering Sound Signals at Sea for Maneuvering & Warning

By · On June 27, 2017

Whistle sound signals at sea come in two varieties, according to the International Regulations for Preventing Collisions at Sea (IRPCS): a short blast and a prolonged blast. The short blast means a blast of about one second’s duration, while a prolonged blast is four to six seconds long. Think of these two different types of blasts as options to use in combinations. Read More

You Might Also Like