Handbook of the Nautical Rules of the Road by Llana & Wisneskey

Home - Table of Contents

Rule 32 -- Definitions


INTERNATIONAL

INLAND

(a) The word "whistle" means any sound signal appliance capable of producing the prescribed blasts and which complies with the specifications in Annex III to these Regulations.

(a) The word "whistle" means any sound signal appliance capable of producing the prescribed blasts and which complies with specifications in Annex III to these Rules.

 

The term "whistle" is used for devices that sound like whistles or horns, no matter what the frequency or tonal quality. There are no references to "foghorns" in the navigation rules.

  

INTERNATIONAL

INLAND

(b) The term "short blast" means a blast of about one second's duration.

(c) The term "prolonged blast" means a blast of from four to six seconds' duration.

(b) The term "short blast" means a blast of about 1 second's duration.

(c) The term "prolonged blast" means a blast of from 4 to 6 seconds' duration.

 

Whistles give coded signals that are made up of one or more "blasts," each of which will last either about one second (short blast) or from four to six seconds (prolonged blast). There are no "long" blasts in the navigation rules.

Home

Table of Contents

Rule 33