§ 86.03 - Approval.

Latest version.

To ensure a wide variety of whistle characteristics, the fundamental frequency of a whistle shall be between the following limits:

(a) 70–200 Hz, for a vessel 200 meters or more in length;

(b) 130–350 Hz, for a vessel 75 meters but less than 200 meters in length;

(c) 250–525 Hz, for a vessel less than 75 meters in length.

                    
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