They have carefully avoided the keel area I see. Just on the edge of the bottom right photo, where you can see damage, but nothing telling.
New Hugo Boss Spotted
- Thread starter james3232
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And what is that opening on the bottom right pic ? it is way aft of the foil opening :
Some kind of inspection hatch for the water ballast ? but why from the outside ?
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stief
Super Anarchist
Bumping this vid. Good reminder from the ATR team about build weight, released back in late October.
Pretty sure Pete will be revisiting the build area around the keel supports.
(there's also the vid about the layup. I recall a frame or two of the workers shaving and sanding areas where they could)
Pretty sure Pete will be revisiting the build area around the keel supports.
(there's also the vid about the layup. I recall a frame or two of the workers shaving and sanding areas where they could)
stief
Super Anarchist
This one discusses the custom build. Timestamped link
stief
Super Anarchist
Thought that was one of the drains for the tunnels? Might be getting that confused with another discussion.
I've been following all the keel conjecture (because that is all it is) as well as the pics being posted. Initially my thought was the impact caused a failure in the forward bearing carrier allowing the keel pin to disengage from the forward bearing, slide forward and drop out of the aft bearing at that point hanging only from the ram. Looking at the various pics of the boat that have been posted from the offload in the UK it appears the forward bearing carrier was still intact. In the latest twitter pics there appears to be some centerline damage immediately aft of the keel opening. This aft damage along with the forward bearing still being attached to the boat makes the scenario where the aft face of the keel box moved (broke/flexed/whatever) enough to let the keel disengage from the forward bearing and then the keel dropped out. As the keel pivot is part of the keel forging I think it very suspect that one of the pin ends failed. But this is all conjecture from the pics.
The good news is whatever the damage, the boat didn’t sink - when they were grinding away at it, the structure would’ve be immediately under the enclosed cockpit, which looked to be fine.
I don’t see it as a failure of the OD concept even if some folks seem to be writing for Pravda.
I don’t see it as a failure of the OD concept even if some folks seem to be writing for Pravda.
The Dark Knight
Super Anarchist
Essex
Super Anarchist
So where does one source an imoca keel assembly at short notice ?
Are they supplied or do you just fabricate your own to OD spec ??
Are they supplied or do you just fabricate your own to OD spec ??
Rainbow Spirit
Anarchist
Not being serious, but what about the sound of an orca pod on the hunt as a deterrent? If it was audible to humans it would drive you nuts!
Matagi
Super Antichrist
Ahstom
Member
Only the keel fin, the keel pin and the ram assembly are OD. Keel fins are supplied by AMPM. The RAM assembly is supplied by Hydroem.
https://ampm-meca.fr/
http://hydroem.fr/
You can find all the infos on the class rule. (there is a quite thorough chapter concerning the design rule of the keel attachement vs grounging load etc... starting at page 33)
https://www.imoca.org/en/imoca/official-documents
Because, judging by the effects of naval sonar, which uses sound that does somewhat resemble the calls of orcas, it makes deep-diving beaked whales in the vicinity surface so fast that they can die from the bends. Imitating orcas risks killing a different, but larger sample of marine life. If orca sound were restricted to warn whales in busy coastal shipping lanes, too shallow for beaked whales, you would still risk driving whales of other species out of essential feeding grounds, starving them instead of running them down.
Warning sound may be a good solution, but I would be cautious about imitating orcas.
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stief
Super Anarchist
Thanks for the find Chasm--lots of good stuff there despite the platitudes. (Good discussion of the sonar/ OSCAR possibilities, but that's for the other thread). Still not clear how the keel separated from the bearings/ structure.
But, bottom line is (at 16:17)
Just googled it and was shocked to see how common it is.
We start the engine, charge the batteries for a bit and hope the sound keeps the humpbacks aware of us. There goes that illusion.
