America's Cup: ENTZ 72 foiling up wind

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ENTZ 72 foiling up wind

Printed From: Yachts and Yachting Online
Category: Keelboat classes
Forum Name: America's Cup
Forum Discription: Your thoughts on challenges to win the 'Auld Mug'
URL: http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=10041
Printed Date: 25 Jun 25 at 9:24am
Software Version: Web Wiz Forums 9.665y - http://www.webwizforums.com

Topic: ENTZ 72 foiling up wind

Posted By: Owenfackrell
Subject: ENTZ 72 foiling up wind
Date Posted: 15 Nov 12 at 2:30pm

According to this artical http://www.sail-world.com/UK/Gladwells-Line:-Riding-shotgun-on-Emirates-Team-NZs-AC72-at-43.6kts/103801 - http://www.sail-world.com/UK/Gladwells-Line:-Riding-shotgun-on-Emirates-Team-NZs-AC72-at-43.6kts/103801

They were also recording speeds of over 43 knots. No matter your feeling on th eAC format these are impressive machines and i would love to go for a ride on one.

Replies:

Posted By: alstorer
Date Posted: 15 Nov 12 at 2:52pm

Interesting that they reckon the beam fairing was actually creating apreciable aero-lift!

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Al

Posted By: Reuben T
Date Posted: 19 Dec 12 at 7:51pm

I am probably missing something, but why were they concerned at foiling upwind, surely this is considerably faster

Posted By: Rupert
Date Posted: 19 Dec 12 at 8:09pm

I imagine it has to do with control. If the boat is being lifted by the fairing, then there is likely to be a crash.

Or does the AC prohibit upwind foiling?

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Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686

Posted By: JimC
Date Posted: 19 Dec 12 at 10:09pm

Originally posted by alstorer

...they reckon the beam fairing was actually creating apreciable aero-lift!

With 50 knots of apparent breeze across the deck all sorts of aero effects are going to be evident!

Posted By: JP233
Date Posted: 19 Dec 12 at 11:07pm

whats wrong with foiling upwnd?

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Thanks
Jamie

Posted By: ham4sand
Date Posted: 21 Dec 12 at 5:57pm

they might flip and die

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John Hamilton
cherub 2645 - cheese before bedtime
cherub 3209 - anatidaephobia
laser 176847 - kiss this
[FORSALE]

Posted By: JP233
Date Posted: 21 Dec 12 at 6:05pm

Yeah, but John, they would be REALLY fast, and would win!

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Thanks
Jamie

Posted By: Oatsandbeans
Date Posted: 21 Dec 12 at 6:08pm

The oracle guys dont look too fast with the boat and rig in bits!

Posted By: JP233
Date Posted: 21 Dec 12 at 6:14pm

they are a one off case, but i do think that if they were foiling upwind they wouldnt have buried it on the bear away

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Thanks
Jamie

Posted By: ham4sand
Date Posted: 22 Dec 12 at 8:57pm

i think their foils are designed to give a good VMG when going downwind on the the foil, so if you foiled upwind on them there would be appreciable leeway

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John Hamilton
cherub 2645 - cheese before bedtime
cherub 3209 - anatidaephobia
laser 176847 - kiss this
[FORSALE]