Vendee Globe 2020

Rafael

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253
Alboran Sea
3 IMG HIGHLIGHTs 1st WEEK RACE RESUME...  The BOSS WEAPON(s), The RETURN of the ROI KING & The WOUNDED BULL... CrocHBpink.jpg YesweCAM.jpg Beyou2.jpg

 
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oioi

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I was not following the lead up to the race.  Do I recall someone posting that Boss is set up as much for moderate conditions as opposed to the harder SO conditions?  
From what i have read, and infer,  it's very much setup for running,  rather than beating or even reaching. They've taken a view that up wind speed is irrelevant,  and reaching not that important. 

The foils were also designed to be able to be retracted. 2 benefits,  less drag in the light stuff,  option to depower in the heavier SO conditions.  Rumours were a last minute addition of "vanes?" Along the foil to prevent cavitation. Not sure where these were added along the foil and whether they have significantly impacted this ability. 

In summary,  optimised for running,  but across a wide wind range. This is my guess, could be wrong!

 

minca3

Member
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The foils were also designed to be able to be retracted. 2 benefits,  less drag in the light stuff,  option to depower in the heavier SO conditions.  Rumours were a last minute addition of "vanes?" Along the foil to prevent cavitation. Not sure where these were added along the foil and whether they have significantly impacted this ability. 
They were:

 

boss.jpg

 

oioi

Super Anarchist
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On Live data from Seaexplorer - Yacht Club de Monaco, what's the trim that is refered to?

 

Rafael

Member
451
253
Alboran Sea
Interesting numbers out of the last five updates for Boss.

2100  yesterday to 1700 today Boss put 59 NM into Cam

Boss 0400 TWA 109 TWS 10.7 BS 15.5

          0800 TWA 109 TWS 10.2 BS 17.2

          1100 TWA 113 TWS 11.7 BS 15.6

          1400 TWA 111 TWS 12.7 BS 19.5

          1700 TWA 104 TWS13.0 BS 20.5

Looks like Boss has a sweet spot here in the TWA range and looking at the track that appears to be what they are aiming for TWA vs heading, at least at the moment.

CAPE seems to indicate a fairly easy passage through the Doldrums for the two leaders. Going to be very interesting to see if Boss can continue to increase the distance up to that point.

I was not following the lead up to the race.  Do I recall someone posting that Boss is set up as much for moderate conditions as opposed to the harder SO conditions? 
Thanks, interesting yes, First time we have BOSS racing in a fleet... (apart from TJV before colision clusterfuck keel)

Looks like extending miles on everyone (also leCam) until the doldrums glue (less miles on the fastest Apivia and linkedOut...)

In general all the foilers need less wind to perform (range of 15/30 knts) w/ more wind (and waves) the differences tend to flat out...

 

Rafael

Member
451
253
Alboran Sea
First boat to break the 400 mile in 24 hrs (406.2Nm), that's 50 more miles than the fastest in the fleet Rouyant linkedOut, speedHB.jpg

Increasing speeds in last hour... what a fckng machine

 
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Miffy

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Before VG: AT dOesn’t tRaIn wITh fRenCh his tactics will be poor, boat speed will be missing and can’t measure his pace. 
 

One week into VG: ...guess the guy who has sailed it for 20 years remembers something more than Figaro guys who talked shit before their boat was even launched. 

 

stief

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Sask Canada
Do I recall someone posting that Boss is set up as much for moderate conditions as opposed to the harder SO conditions?
Might have been Andrew Cape in the Bar Karate  podcast. Also this article on the VG site , but I think it is a paraphrase of earlier Verdier interviews.

Depending on the profile and shape of the foils these new prototypes can maintain twelve to fifteen knots of speed. Compared to a conventional daggerboard  monohull, they go faster tight reaching (two to three knots more) and upwind for the same VMG, but are much faster in crossed, reaching  winds (five to ten knots or more) and broad reaching (three to six knots faster), while maintaining good VMG downwind, more than 145 ° to the true wind direction.

However, on this Vendée Globe, solo round-the-world without assistance, the angles of tight reaching reaching and broad reaching are most coming, so, in the northeast trade winds, from Madeira to the Doldrums, then in the north then north-westerly breezes from Brazil to the Cape of Good Hope, in the Southern Ocean, then after Cape Horn in a favourable Argentinian depression and back in the northern hemisphere to the finish
Time to crawl out of that damned rabbit hole  :p

 
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tallyho

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Norway
Reality check: 235 miles between first and 11th... lets say an average of 15knots... you are just over half a day away from leading to being out of the top 10. 

 

Horsti

New member
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On Live data from Seaexplorer - Yacht Club de Monaco, what's the trim that is refered to?
I first thought it refers to the rudder angle, but the magnitude seems too small for that

Therefore I guess it is the slowpass filtered pitch (for/aft) angle.

 
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