Flag Alpha at night

[ianwright]

Any idea what replaces the "I have a diver down, keep clear of me at slow speed" signal at night?

IanW.

<P ID="edit"><FONT SIZE=-1>Edited by ianwright on Sun Jun 17 00:27:41 2001 (server time).</FONT></P>

 

[peterb]

No problem. Colregs rule 27(d) gives the night signal for underwater operations as the normal power vessel lights for a vessel of her size, plus red-white-red all-round lights in a vertical line, plus two vertical greens on the safe side to pass and two vertical reds on the dangerous side (i.e. the same lights as a dredger).

But then 27(e)(i) says that if the size of vessel makes it impractical to show those lights, then it should show just the red-white-red in a vertical line. And, 27(e)(ii) also gives the day signal for a small diving vessel; not just flag 'A', but a rigid replica of flag 'A' not less than 1 metre in height.

Incidentally, if your query arises from Current News 264, the question wasn't raised at a RATS meeting, or the same answer would have been given there.

 

[ianwright]

Thanks Peter,
that's more or less what I thought, at least it was what we did when I was a pro diver thirty years ago. As (you guessed) I saw the question in the CA news and wondered if I was missing summut.
Ta,
IanW.

 

[alant]

probably lights showing the vessel is "restricted in her ability to manouver" with maybe additional lights indicating "engaged in dredging or underwater operations"

 

[Boatman]

An interesting discussion with divers of the PADI ilk discovered that there are a number of issues with "I Have a diver down" the PADI flag is not internationally recognised yet many divers didn't know flag Alpha.

How can this situation have come about? And I certainly only recently learned of the PADI flag

 

[ianwright]

PADI,,,,,,,?that must be since my time, I never was big on acronyms, I had trouble with SCUBA, nasty Americanism,,,,, Bear with me, I trained under a CPO Clearance diver,worked in hand pumped Seibe Gorman Standard dress before we had Aquadine and Ratcliffe hats and my Saturation Cert is number 13,,,,,,,