Luna Rossa Challenge. AC 36

Almost time to welcome our Italian brothers to the party.

For you bro.jpg

 
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Horn Rock

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^^^ Hard to tell exactly what's going on, but there looks to be some interesting treatment in the bow area. Seems to have a dimple and a bulge around the foil arms as well. Looks like another intriguing AC75.

 

Boybland

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Morioka, Japan
^^^ Hard to tell exactly what's going on, but there looks to be some interesting treatment in the bow area. Seems to have a dimple and a bulge around the foil arms as well. Looks like another intriguing AC75.
Looking reasonably full in the bow, foil mounts look halfway between the very potruding AM and very recessed ETNZ, yup probably yet another different interpretation.  Can't wait for the full reveal so we can see what the underside looks like.

 

JonRowe

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Stealing the images direct from that link:

image.png

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So we have a Kiwi style "keel" to the hull and American Magic style bulbs on foils, (again for modification under the rules?)

Does the forestay seem rather far back anyone else?

 
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RobG

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That doesn't make sense to me, surely you'd want the boat as light as possible?
Sure, but every kg of paint (and filler) is a kg that can't be used for something else.

Isnt there a rule about the type of finish/paint required. Standard 2 pot? Basically so the teams dont spend mega bucks on surface coating technology (sharkskin texture etc etc)


9.1 Except as permitted in Rules 9.5 and 9.6, the outermost layer of the hull, foils and rudder must be a commercial product approved by the Rules Committee according to Rule 8, who shall only approve paints that are comparable to those on the list provided in Rule 8.6.

 

Raptorsailor

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Sure, but every kg of paint (and filler) is a kg that can't be used for something else.

9.1 Except as permitted in Rules 9.5 and 9.6, the outermost layer of the hull, foils and rudder must be a commercial product approved by the Rules Committee according to Rule 8, who shall only approve paints that are comparable to those on the list provided in Rule 8.6.
I'm pretty sure the black is just plain carbon that's been given a matte finish, no need to paint it black if it's already black.

 
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RobG

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Each foil has to weigh close to 1,000 kg. Presumably LR has put most of that into the bulb, leaving them a lot more leeway on materials and design of the wings. It may also mean they can easily swap wings rather than the whole foil.

There may also be benefits for cavitation, and at least one very knowledgeable and successful hydrofoil builder swears that bulbs are faster than T joints, all else being equal.

 
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RobG

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I'm pretty sure the black is just plain carbon that's been given a matte finish, no need to paint it black if it's already black.
Yes. But if you want something other than black (or "carbon grey")…

 
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Lakrass

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15 min left to start of live, 2h45 according to announcement. Don't quite get their timing but stay tune.

 
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JonRowe

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Launch is at 2 so assume 30 minutes of waffle before the christening, then speech with a bottle of fizz on the bow, then move waffle?

 
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