Cancelling sound signals

[VicS]

If a vessel gives a sound (or light) signal to indicate an intended manoeuvre but then does not carry out the manoeuvre for some reason how would you expect them to cancel that signal

 

[nigelmercier]

I would expect a new signal to countermand the old, but I have no idea if this is correct.

 

[VicS]

I would expect a new signal to countermand the old, but I have no idea if this is correct.

So what would you expect for "I'm going straight on for a bit, instead of turning left/right"

 

[Stemar]

Morse N?

Not that I or, I suspect, a lot of people would recognise it as such, but it would at least suggest that something diffierent's about to happen

 

[Trundlebug]

Interesting question.
I think I'd go on the VHF and say "scrub those sound signals I'm doing X"

Or maybe stop and hold station and hope no-one heard the sound signals.
Er, er...

 

[Sailingsaves]

I would expect a new signal to countermand the old, but I have no idea if this is correct.

+1

Or I'd sound the signal for "not understood" in the hope it alerted those around that there was confusion and to be on alert. But I am no expert. 20 years sailing and I still consider myself a beginner with just a little experience.

Common sense rules at sea imho. I attended a sea school prior to Yachtmaster practical test and they it was p poor. So much of what they 'taught' was rubbish. It was suggested by the examiner that I report the school but I think the instructor was just p'd off with the November weather and could not be bothered to teach. All was wel in the end.

 

[Stork_III]

Sound 5 hoots to get attention, then your revised intention?

 

[VicS]

I reckon Stemar has the best or at least most correct answer but the snag is no one, except Stemar, will recognise it.

VHF is a only any good if people are listening to it.

Sounding a revised intention is only any good if there is a signal for the revised intention......... What is the sound signal for carrying straight on on current course ?

 

[nigelmercier]

I thought you were going to tell us the right answer. If this is a suggestion box, then I suggest ........ as used in Morse.

 

[superheat6k]

The available range of sound signals under the IRPCS is very limited. There is no cancellation signal, but neither are any limits set for a minimum range of indicated manoeuvre. But if you made a signal say one short blast indicating a turn to stbd say in a head to head situation then did not carry out your maneouvre expect to be found the most guilty party in any subsequent enquiry should a collision then occur.

However, the IRPCS do allow use of non standard signals say to grab attention, Rule 36. Rule 32 sets out that a short blast is approx 1 second long, so for instance a quick toot to your mate as you pass by, or to get someone's attention, e.g. As you enter a fairway from a side channel where boats approaching from port sometimes think they are on a public road do not realise they are obliged to keep clear, and should therefore be keeping close lookout.

Harbour launches in Cowes are in my experience the worse for this idiocy.

 

[jfm]

The available range of sound signals under the IRPCS is very limited. There is no cancellation signal, but neither are any limits set for a minimum range of indicated manoeuvre. But if you made a signal say one short blast indicating a turn to stbd say in a head to head situation then did not carry out your maneouvre expect to be found the most guilty party in any subsequent enquiry should a collision then occur.

However, the IRPCS do allow use of non standard signals say to grab attention, Rule 36. Rule 32 sets out that a short blast is approx 1 second long, so for instance a quick toot to your mate as you pass by, or to get someone's attention, e.g. As you enter a fairway from a side channel where boats approaching from port sometimes think they are on a public road do not realise they are obliged to keep clear, and should therefore be keeping close lookout.

All agreed. Though sadly a quick toot 0.2 seconds might well be thought of as turn to stbd by those who don't recall the details of the rules, but that might be no bad thing in the case of entering the fairway that you describe, if your entry involves a turn to starboard

I agree with you about attracting your mate too. Rule 36 however is one of the many ColRegs that suffers from utterly awful drafting - my view is they need a complete re-write, but that's a debate for another thread. The opening words "If necessary to attract the attention of another vessel..." lead some to say you can only so toot at another boat if it is necessary that you attract his attention, but I don't agree that interpretation and think you are free to attract his attention just because you feel like it, by way of a quick (much less than one second) toot, if tooting is the only sensible means of attracting his attention

As regards OP's very pertinent question, I don't think there is a cancellation signal. That's a bad omission, as illustrated by Atalanta case, and is yet another reason (to add to the other 100) why ColRegs should be re-written

 

[prv]

if you made a signal say one short blast indicating a turn to stbd say in a head to head situation then did not carry out your maneouvre expect to be found the most guilty party in any subsequent enquiry

Apparently not!

Pete

 

[Uricanejack]

I thought you were going to tell us the right answer. If this is a suggestion box, then I suggest ........ as used in Morse.

If I recall correctly. The morse signal for an error is a series of rapid E's. so sound on short. change your mind. sound a rapid series of 1 shorts. Now sound the two shorts.

simple realy every one will scatter.

 

[nigelmercier]

If I recall correctly. The morse signal for an error is a series of rapid E's.

Yes, eight of them, as you quoted