 | 1927 - 372 페이지
...vessels " on the whistle or siren. Second. By " sailing vessels " and " vessels towed " on the foghorn. The words " prolonged blast " used in this article...four to six seconds' duration. A steam vessel shall he provided with an efficient whistle or siren sounded by steam or by some substitute for steam, so... | |
 | Carl D. Lane - 1951 - 620 페이지
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 | Canada - 1896 - 698 페이지
...where it can best be seen, one black ball or shape 2 feet in diameter. Sound Signals for Fog, &c. Art. 15. All signals prescribed by this article for vessels under way shall be given: 1. By " steam vessels " on the whistle or siren. 2. By " sailing vessels and vessels towed " on the... | |
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sailing vessels" and "vessels towed" on the fog horn. The words "prolonged blast" used in this article shall mean a blast of from four to six seconds 
