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Old 17-11-2012, 16:51   #61
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Re: Vendee Globe - the Real Race

Quote:
Chinese gybe on ENERGA as autopilot fails
Zbigniew 'Gutek' Gutkowski has been having his problems.
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Old 17-11-2012, 18:32   #62
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Re: Vendee Globe - the Real Race

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They had radar. All the boats have radar and AIS, although I doubt that their AIS units are transmitting. However, in very rough seas like they were experiencing the radar alarms might not work very well.
Yes that is a good point.
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Old 17-11-2012, 18:40   #63
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Re: Vendee Globe - the Real Race

regarding getting the rig back on board:

Yves Parlier's act is a hard one to follow, back in 96 Vendee, (ref post #22)

Of course his circumstances would have been different, but regardless of that it was an amazing achievement.

Given that all the materials involved in mast and sails and rigging have a density greater than that of water, I don't think the rig would remain afloat to present a menace to shipping unless there was a large sealed volume which remained intact, which AFAIK is not common practice in this fleet.
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Old 17-11-2012, 19:06   #64
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Re: Vendee Globe - the Real Race

As for radars being able to keep watch unsupervised, it's hard enough to teach humans to differentiate ships from high seas, let alone teach a computer.

A 'safety' aid which fails to be reliable in bad conditions, is, IMO, not worth having.

And I think this is particularly problematic, in a 'moral hazard' sense, if the "bad conditions" are hard to define in any hard-edged way (as would be the case for technology like this).

If the upsurge of collisions proves to me more than a statistical blip, I wonder if might turn out to be associated with the 'moral hazard' aspect of AIS: namely that it's buggerall good if the other guy doesn't have his set turned on and working properly.

It's an interesting and perplexing question: an example of 'other reliance' as opposed to 'self reliance'

Of course I realise that single handers cannot keep watch at all times, but that's nothing new.

I can't thing of another plausible explanation if there does turn out to be a genuine upsurge of these collisions.

For instance it doesn't seem to me the speeds have suddenly jumped sufficiently to account for this upsurge, if the standards of human-supervised watchkeeping have been maintained unchanged.
And I don't think the fishing fleets are more populous: generally over time the number of ships gets fewer and their size larger...

I guess it's possible the fishing effort has moved into areas which the preferred routings happens to traverse...
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Old 17-11-2012, 19:26   #65
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Re: Vendee Globe - the Real Race

Perhaps the fishing vessels are also running without a proper watch.(?)

I would guess that the racers are running in receive only mode and perhaps the fishers are doing the same thing. It makes a mockery out of AIS.

The fishing vessels could have been heading towards the Grand Banks or thereabouts and so crossing the paths of the racers. In large seas a 60 ft boat doing 15 or so knots would be very difficult to see, especially in rain.
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Old 18-11-2012, 05:23   #66
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Re: Vendee Globe - the Real Race

I wonder if Francois (#2) has had an accident with his rig/sails as he is lagging so much behind when earlier he had a big lead?

Today 1t 10:00 UTC he is only doing 13 kn with a wind 66° - 13 kn, whilst Armel (#1) is doing 17 kn with practically the same wind at 60° - 14 kn.

Shortly they will enter an area of winds around 1-3 kn and temperatures around C 40° so we can expect little movements.

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Old 18-11-2012, 09:56   #67
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Re: Vendee Globe - the Real Race

Yes. There seemed to be something wrong with Macif for a time - he got virtually stuck while others in apparently the same wind kept on going.

JP is doind fine and I have just had a look at his JP54 design here and man she is some boat.

Looks like right now there is the leading group and then the chasing group and then the marauders and then, finally, Gutek.

I hope Beyou will fix his swinging parts, for if they keep on dropping out at this rate we might be watching only 10 boats at the first cape.

BTW Is this a sign of the fleet getting older with too few new strong boats perhaps?

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Old 18-11-2012, 10:25   #68
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Quote:
Originally Posted by DeepFrz
Perhaps the fishing vessels are also running without a proper watch.(?)

I would guess that the racers are running in receive only mode and perhaps the fishers are doing the same thing. It makes a mockery out of AIS.

The fishing vessels could have been heading towards the Grand Banks or thereabouts and so crossing the paths of the racers. In large seas a 60 ft boat doing 15 or so knots would be very difficult to see, especially in rain.
Bernard on Macif reports he can see other boats but only about 10 miles and the other boat often disappears. So safe to say they are transmitting.
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Old 18-11-2012, 10:38   #69
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Re: Vendee Globe - the Real Race

And 10 miles is plenty of time to take action. I think the Portuguese (well, maybe not only Portuguese) trawlers did not have AIS onboard, did not have their units on, did not have the CPA/TCPA alarms on, did not know how to set the alarms ... tick one or more, as you please.

And if IMOCAs do not have B class transponders then they are plainly stupid. But I believe they are not.

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Old 18-11-2012, 12:05   #70
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Re: Vendee Globe - the Real Race

Barney...

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I hope Beyou will fix his swinging parts, for if they keep on dropping out at this rate we might be watching only 10 boats at the first cape.
Sounds very painful,perhaps he needs medical help?

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Old 18-11-2012, 16:49   #71
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Re: Vendee Globe - the Real Race

Another Titanium part broke that was supposed to be engineered for 120 tons and had only around 40 ton load. Jeremie was doing 21 knots when the hydraulic shaft broke. I suppose he may have hit something. Someone else mentioned just missing a log the other day.

I don't think anything major happened to Macif as he has had some very good speeds and is maintaining the same distance (approx.) behind Armel.
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Old 18-11-2012, 22:50   #72
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Re: Vendee Globe - the Real Race

Another question answered. Several of the sailors in the past 2 days have mentioned that they have seen other racers on AIS so I guess they run them in transmit mode after all.
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Old 19-11-2012, 07:45   #73
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Re: Vendee Globe - the Real Race

Today´s update as of 14:00 UTC with latest optimized route.

Francois is only 26 nm behind and doing better speed than Armel.

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Old 19-11-2012, 08:25   #74
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Re: Vendee Globe - the Real Race

And another one bites the dust as Jeremie Beyou retires with a broken keel mechanism.

Alex Thomson does an amazing repair to his rudder tie bar while sailing about 19 to 20 knots.
L'incroyable réparation d'Alex Thomson - Vidéo Dailymotion
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Old 19-11-2012, 14:20   #75
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Re: Vendee Globe - the Real Race

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And another one bites the dust as Jeremie Beyou retires with a broken keel mechanism.

Alex Thomson does an amazing repair to his rudder tie bar while sailing about 19 to 20 knots.
L'incroyable réparation d'Alex Thomson - Vidéo Dailymotion
Amazing. I wonder how much duct tape is routinely stocked in anticipation of these kind of repairs.
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