June WNS

TonyJones

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WNS README FIRST PLEASE
The purpose of What Now Skip is to give forum members the opportunity of learning from each other's experiences and opinions. To that end, awkward boating scenarios are presented for discussion. WNS is not a test with replies measured against a predetermined ‘correct’ answer. In fact, in most cases, there is usually more than one solution to the posed scenario. Selected attributed posts will appear in the next issue of the magazine.
However, please read the scenario carefully as some of the information given may imply certain possibilities or restrictions on possible courses of action – without spelling them out specifically.
The author always tries to describe the situation as fully as possible but ambiguities sometimes arise. If you are unclear as to any particular aspect or require clarification of an issue – just ask.


Our virtual, mythical, elusive and plain unfortunate skipper is on a two week summer holiday cruise aboard his 48ft flybridge cruiser with his partner and two teenage sons. It is about four in the afternoon and the weather is set fine.

However, he is approaching a harbour in an area notorious for unmarked and illegal lobster pots. So he and his crew are being extra vigilant. The fact that he had rope cutters fitted to both shafts only a few weeks is reassuring.

Sure enough a small white half-gallon plastic container is soon spotted on the port bow, followed by another to starboard and two more further away. The four appear to be in an almost straight line. But there’s plenty of room to pass between any pair, so should he just carry on?
Having avoided that hazard, he is barely a mile from his destination when ‘kerlunk’, something wraps itself around the starboard prop and, despite the rope cutters, stops the engine.
He puts the other engine into neutral and peers over the side of the cockpit. And there, bobbing just below the chine is another of those pesky half-gallon milk containers.

According to the GPS, the boat is now stationary, despite the 2 knot tide. Things on board that might be helpful are a 3.5m RIB tender, a long boat hook, a toolkit that includes a hacksaw and buoyancy aids (as well as lifejackets) for all the crew. He and his sons are good swimmers.

How should he go about extracting himself from this predicament, not just physically but also in terms of overall procedure – with safety considerations uppermost, as ever? Should he report the incident when he gets ashore? If so, to whom? What authorities, if any, might be interested in such reports?

Best wishes
TJ
 
Well first he should try the engine in forwards and reverse a good few times, the rope cutters always worked eventually for me.

Failing that, lift the pot and take the crab home for tea with the other engine.
 
Aha!!!

Now I see why your boat reaches the same revs but is getting slower.
Definitely a case of slipping clutch, after all that stress... /forums/images/graemlins/grin.gif
 
Do you stun the "free" crustations first in the freezer or just pop them straight into in your pot of boiling water and exactly which white wine do you open .........
and can you consume the evidence before you call the breakdown serv................sorry lifeboat to tow you in before the pubs close.
 
as always there are so many variables here.
Partner? Hmm, kids' mother or not..by current "partner" or not? These are critical aspects.
Despite the advantages of modern electronics on board, deciding who to chuck overboard with the bread knife has never been easy.
How "current" is current partner of course? What are his philanderer plans?Should she be dunked and dumped? Should he do a "Maxwell" (Alleged)?
Too complex, this one...
 
Here we go... and not deviding the work out amongst the crew in any particular way, as we do not have enough information ... but assume you devide the work out as appropriate... and boyancy aids are correctly worn.

1) Close to the harbour, you are obviously an obstruction and as such a hazard, so do contact the harbour and let them know about your situation so they can warn and direct other traffic as appropriate.

2) If it stopped the engine despite the rope cutters, and is holding the boat stationary agains a 2 knot tide, this may be someting more than normal rope, so would be careful to do too much with the engine, as this is obvioulsy strong stuff. So I would check engine, gearbox, shaft and fittings, in case more damage is made (report as 1 if appropriate, and if more severe contact coastguard).

3) Swimming in 2 knot current is not advisable, so all should stay out of the water, unless as a last resort .... and if so, make them have a lifeline attached.

4) Check and see if Starboard engine re-starts in case you do get free and need the manouverability. If not it needs to be in your next report to the harbour.

5) Get anchor ready in case you need to use it

6) Launch dingy in preparation for closer inspection & report situation and intent to the harbour.

7) Inspect situation closely and decide on approach, taking into consideration outcome of 4

8) Make arrangement for cutting or seeking additional assistance as appropriate for the situation encountered....

... once released make way to harbour, moor up and report to harbour master as appropriate and post a record of the experience in here so we all can learn from your experience and with RYA.
 
Have a quick look in the engine room to ensure the stuck prop hasn't caused other damage. Assuming there isn't, then I'm not sure you need to call the CG, as you're obviously not in the approach channel to the harbour, or there wouldn't be pots.

I wouldn't want someone swimming under the boat in that location, as it's seldom completely flat a mile out, and anyway wash from another boat could cause your boat to pitch, with associated danger of them being clouted on the head by the stern gear. If you can reach the rope in the water with the boat hook, and get it to the surface, you can cut yourself free without anyone going in the water. If not, then i'd be OK with a swimmer trying to cut the rope just behind the boat, but whichever way you cut it, you will then need to be careful about the trailing end wrapping round the other prop. None the less, if you keep a forward motion with the port engine and rudders over, there's no reason the loose end should wrap itself round the port prop

It's summer and fine weather, so i'd look for a nice sheltered bay to head to, anchor up, and then send one of the sons over with a kitchen knife to try and free the prop. Keys out both engines whilst someone's underneath. Alternatively call the harbour and ask them to send a launch to help you moor up, as you'd be far more likely to catch that trailing rope if going fwd and aft in a mooring situation, and it would be a tricky mooring anyway on one engine, though usually doable.
 
Gentlemen,

Thanks for some excellent suggestions, particularly on the safety aspects.

It's never possible to state things down to the very smallest detail, but I feel that there's enough info here to come up with a decent solution - as the replies show.

No one has answered the question about whether is is OK initially to proceed between two of the floats that are in a line of at least four. Any thoughts on that?

In stating the fact that the float was submerged, and mentioning the dinghy and the boat hook, I was trying to indicate that that whatever was fouling the prop was very tight around it and the only way to retrieve would be to launch the dinghy and fish for the line still extending down to the pot - or whatever is is that you are caught on - with the boathook.

The fact that the engine had stopped despite the rope cutters (and the mention of a hacksaw) is a good hint that you've run into a wire trace rather than rope. Trying forward/astern in that situation could lead to more damage.

Finally, I would suggest an initial report to the harbour master on arrival. The RYA are also compiling a list, and CHIRP (confidential Hazardous Incident Reporting Procedure) people whose form you may have come across as a loose insert in MBY and other IPC publications are also interested.

The best extracts will appear in the June issue of the mag.

Best wishes
TJ
 
On balance, I don't think you'd have any chance of lifting the rope with a boat hook, as that would involve pulling a 48 foot boat against a 2 knot current. If it was rope you could maybe lash a sharp knife to the end of the boat hook and cut the rope with that. If it's wire I suppose you could do the same with the hacksaw, but would be very difficult to cut the wire rope like that with the boat moving around.
 
Yup i thought the same. I think you'd be better looping a rope around the taught line (using one of those loop-arounderer gizmo poles, or if like me you dont have one doing it the hard way with boat hook) and big loop in the line. Then use the boat's winches to pull up the lobster pot line, and cut it. When cutting it leave a long line which you can then tie off tight, hence no free rope flapping about to snag the other prop. Then proceed as per your post

I'd also consider (depending on gauge of line) driving forward on the free engine (jerkily) to snap the pot line, then pull up the free end with boat hook. Depends on strength of the line versus your P bracket!

Ref passing between buoys in a line I'd say look for evidence that it's a drift net -usually they have small floats along the top edge. Otherwise it's generally safe to pass between them, as it was in this case. All that said, if pracical I'd just alter course usually and avoid the whole cluster, just to be belt n braces
 
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