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Fog signal frequency
"Jack Dale" wrote in message
... On Mon, 1 Sep 2003 23:46:33 -0400, "Scott Vernon" wrote: mmmmmmm, why would they require different fog signals for power vs sail if there is no pecking order in fog? The pecking order remains the same in fog. A simple memory aid: One prolonged blast (power underway)- moving (one word) Two prolonged blasts (underway, no way on - adrift) - not moving (two words) One prolonged blast, 2 short blasts - Almost all others (three words) Well it is even more logical than that. Two long is morse M which has the meaning 'my vessel is stoppped and making no way through the water' long short short is morse D which has the meaning 'my vessel is restricted in its ability to manoeuvre ....'. The signals have those same meanings by sound or light in good visibility. The 'normal' rules only apply to vessels within sight of each other, ie NOT just detected on radar or heard. So it is a completely different game in restricted vis. in a sense it is therefore true that there is no pecking order but it is obviously desirable to know if you are dealing with a power vessel that can manoeuvre easily or one that cannot. Thanks for the comments above; I take the point about varying the interval in case you are exactly overlapping an automatic system. However, giving an inexperienced crewmember a watch and precise instructions is easier than requesting some wobble ! Steve (OP - different machine) |
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Fog signal frequency
For example wrote:
Well it is even more logical than that. Two long is morse M which has the meaning 'my vessel is stoppped and making no way through the water' long short short is morse D which has the meaning 'my vessel is restricted in its ability to manoeuvre ....'. Not quite, D actually means "I am manoeuvring with difficulty" which is not exactly the same thing. But similar, I'll grant you. But the single long blast, T, means "I am engaged in pair trawling". I think that knocks your theory on its head. |
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