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Forums > Sailing General

The moment Wild Oates X1 passed Comanche

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Created by Donk107 > 9 months ago, 27 Dec 2017
Donk107
TAS, 2446 posts
28 Dec 2017 1:41AM
Thumbs Up

Hi all

We went down to South Arm at the mouth of the Derwent yesterday and watched Comanche enter the river and stop as the breeze died followed by Wild Oates X1 about 10 minutes later

After some sail changes by both crews and both crews sending someone up to the top of the mast to look for wind Wild Oates X1 managed to catch and pass Comanche and went on to cross the line first

This is a series of photo's showing what happened

Regards Don








































valo
NSW, 309 posts
28 Dec 2017 6:39AM
Thumbs Up

Thanks Don.
Great pics.

Cav30
NSW, 121 posts
28 Dec 2017 8:43AM
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Amazing photos. Thanks for sharing.

LDVC must be spewing!

samsturdy
NSW, 1659 posts
28 Dec 2017 9:08AM
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Great shots Don. I saw it happen on TV. How would you like to be the guy atop the mast. Both boats
look magnificent.

Donk107
TAS, 2446 posts
28 Dec 2017 9:18AM
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It was quite interesting because we got to South Arm about and hour before the boats arrived and there was a nice breeze still blowing up the river

Just before Comanche arrived the breeze in the river died and there was a definite wind line at the start of the river

Comanche hit this and stopped and a little while later on Wild Oates X1 did the same

The wind then started to come back and advanced up the river and both boats were advancing up the river with it

It probably wasn't helped by just about everything that floats in Hobart was surrounding them and messing up what would have been flat water

These photo's were taken about an hour before they arrived

Heading back up today to watch a few more finish and have a good look at the boats

Regards Don




Jethrow
NSW, 1261 posts
28 Dec 2017 9:22AM
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Wow, that was some transition zone. Fully powered up to backed headsail and no wind in a matter of meters.

WA125er
98 posts
28 Dec 2017 7:13AM
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Love your work Donk.
I reckon that situation has happened to most....can almost feel how frustrated the LDVC team would have been.

SandS
VIC, 5904 posts
28 Dec 2017 10:19AM
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Great pics !

Yara
NSW, 1292 posts
28 Dec 2017 10:26AM
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Hard to believe that Comanche could make a basic mistake, but my understanding of light weather conditions is that you pull the traveller to windward to minimise twist in the main, and catch the high level puffs. Compare the photos: WOXI has virtually no twist in her main, Comanche has heaps.
What does the brains trust think?

Cav30
NSW, 121 posts
28 Dec 2017 10:43AM
Thumbs Up

Yara said..
Hard to believe that Comanche could make a basic mistake, but my understanding of light weather conditions is that you pull the traveller to windward to minimise twist in the main, and catch the high level puffs. Compare the photos: WOXI has vitually no twist in her main, Comanche has heaps.
What does the brains trust think?


I thought you pulled the traveller to winward to maximise twist. Make the sail fuller. Catch more wind.

www.sailnet.com/forums/42955-post6.html

Donk107
TAS, 2446 posts
28 Dec 2017 10:49AM
Thumbs Up

What surprised me was when the wind died Comanche seemed to spend a fair bit of time without a head sail up but

Regards Don

Yara
NSW, 1292 posts
28 Dec 2017 11:02AM
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Cav30 said..

Yara said..
Hard to believe that Comanche could make a basic mistake, but my understanding of light weather conditions is that you pull the traveller to windward to minimise twist in the main, and catch the high level puffs. Compare the photos: WOXI has vitually no twist in her main, Comanche has heaps.
What does the brains trust think?



I thought you pulled the traveller to winward to maximise twist. Make the sail fuller. Catch more wind.

www.sailnet.com/forums/42955-post6.html


Yes, of course, you are right. However the twist theory relies on a wind speed gradient. These "no expense spared" boats possibly have instruments to measure that, and the answer could be that the gradient effect was not as much as Comanche expected.

andy59
QLD, 1153 posts
28 Dec 2017 3:18PM
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Great pics Don

andy59
QLD, 1153 posts
28 Dec 2017 3:18PM
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Great pics Don

Chris 249
NSW, 3427 posts
28 Dec 2017 4:28PM
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Select to expand quote
Yara said..
Hard to believe that Comanche could make a basic mistake, but my understanding of light weather conditions is that you pull the traveller to windward to minimise twist in the main, and catch the high level puffs. Compare the photos: WOXI has virtually no twist in her main, Comanche has heaps.
What does the brains trust think?


Other way around. Maximise twist. There is normally more wind up there, which skews the apparent aft at the masthead. Also, twist reduces your pointing and, in perfect conditions, your ultimate speed - but it promotes attached airflow (rather than stalling the lee side and leach) and acceleration.

shaggybaxter
QLD, 2587 posts
29 Dec 2017 11:40PM
Thumbs Up

Yep, looks like Comanche were trying different things to keep the flow attached. She would be like glue in light airs, that's a massive wetted surface area to overcome. Heel the boat at the expense of optimal trim, so traveller up, sheet on is worth a shot at that stage.
Btw, thanks Donk for the pics, some of them are excellent.



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"The moment Wild Oates X1 passed Comanche" started by Donk107