IALACOLREG
32

Definitions (Sound Signals)

Defines short blast (about 1 second) and prolonged blast (4 to 6 seconds).

Rule 32 defines sound signal terms:

a
The word "whistle" means any sound signalling appliance capable of producing the prescribed blasts.
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.

Key Takeaways

1

Short blast = approximately 1 second

2

Prolonged blast = 4 to 6 seconds

3

Whistle means any prescribed sound signalling device

Common Mistakes

Making short blasts too long or prolonged blasts too short

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