Jules Verne Trophy 2020
- Thread starter Raptorsailor
- Start date
stief
Super Anarchist
A bit of both.
Marcel scribbling on windy using it for an overview before jumping into Adrena and the detailed routing. (Probably also other routing software, not shown in the videos.)
It is an easy to use tool that visualizes the models very well. Skip though the forecast, change layers, switch models, and so on.
Yes, there are planes (and ships) equipped with additional sensors that are used to collect precise weather data. Like many other planes a lot of them are grounded at the moment. The weather services are trying to compensate by using other means like launching more balloons.
IIRC another aspect was to adjust the models a bit to reflect the loss of data from planes, weighting satellite data higher.
Marcel scribbling on windy using it for an overview before jumping into Adrena and the detailed routing. (Probably also other routing software, not shown in the videos.)
It is an easy to use tool that visualizes the models very well. Skip though the forecast, change layers, switch models, and so on.
Yes, there are planes (and ships) equipped with additional sensors that are used to collect precise weather data. Like many other planes a lot of them are grounded at the moment. The weather services are trying to compensate by using other means like launching more balloons.
IIRC another aspect was to adjust the models a bit to reflect the loss of data from planes, weighting satellite data higher.
Bebmoumoute
Anarchist
F18 Sailor
Super Anarchist
That is primarily for the ice limits; Gitana and Sodebo don't have any restrictions, they can draw their own ice lines based on the latest satellite image and sea surface temperature data available. Unfortunately, without launching your own satellite there are no real additional products available to help find a faster route, i.e extra ASCAT passes over the equator to find a clear lane through the doldrums etc.
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stief
Super Anarchist
True (I'm recalling Great Circle's role in the VG here). Though, I thought GC also gets better than the public sat data over the equator. I keep watching the INMARSAT promos about their proprietary data, but don't know exactly what they provide race teams.
F18 Sailor
Super Anarchist
A faster way to get publicly available data. Last I checked, INMARSAT is a comms network, not a weather data provider.
winchfodder
Super Anarchist
Is there a crib sheet somewhere comparing the two boats. Gitana is looking a bit faster at the moment. I think the midsea encounter video today the Sodebo crew mentioned something about Gitana being able to sail deeper in the prevailing conditions (if my French is any good) though it could have been the other way around.
Only difference I can see at the moment is eight crew on Sodebo vs six on Gitana.
Only difference I can see at the moment is eight crew on Sodebo vs six on Gitana.
Bebmoumoute
Anarchist
explenture
Member
F18 Sailor
Super Anarchist
Gitana is the more powerful boat I believe, primarily designed with crewed racing in mind. Sodebo 3 was designed for Thomas Coville to break the single handed round the world record; they are taking it crewed first as I suspect they know the risk of breakage is high and its better to suffer a break with 6 onboard vs. 1.
Bebmoumoute
Anarchist
Rafael
Member
Gitana has shown several times that is the fastest ULTIM, Caudrelier and Cammas add to the fact and that they are the team to beat. Sodebo has made some changes and refinements to challenge them... but for now and by the first hours of this new JV trophy seems things go the same way.
Good luck for both teams, they will need a good dose of it to challenge Joyon's actual mindblowing record...
Good luck for both teams, they will need a good dose of it to challenge Joyon's actual mindblowing record...
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stief
Super Anarchist
PIL66 - XL2
Super Anarchist
Awesome stuff.... sooo much going on, I need at least 3 screens.... I just hope all make it home safe as these things are beasts. They are somewhat untried and tested in huge swell down south as full foilers.....
Great that they are going together for so many reasons including safety...
Gitana is at a cracking pace already .......
WOW WOW WOW
Great that they are going together for so many reasons including safety...
Gitana is at a cracking pace already .......
WOW WOW WOW
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The America's Cup, the Vendée Globe and now a match race between two of the fastest ocean racing boats ! What a time to be alive !
Imho Gitana is the faster boat of the fleet and I wouldn't be supprised if we see a gap of performance with Sodebo.
- It has been foiling since its launch back in 2017 and the Gitana had team already experimented foiling with their old MOD70 (now Maserati), while Sodebo has only been foiling since it received its daggerboard foil 6 months ago.
- Gitana 17 also has an active flight control system which controls the roll and peach of the boat (in french we call it "enslavement", I don't know how to translate it without it sounding weird). Sodebo flight is manually controlled through a wheel in the cockpit.
- Gitana looks to me like the most developped boat, as the team has spend lots of time refining the boat in various areas like aerodynamic efficiency with things like the fairings, the cockpit and the closing of the gap between the boom and the roof, etc. Sodebo had far less time to be developped as it is 2 years younger in comparaison. The S team added many upgrades before summer which made the boat faster, but they still have a lot of room to improve the performance of Sodebo. A engineer of the Gitana team said in a recent video that they improved the speed of the boat by 10% since its launch.
In the end the two boats are two beasts and they are close in terms of performance, but Gitana exploits much more of its potential than Sodebo does. Sodebo has the potential to be faster than Gitana thanks to its design but it needs a bit more time. We have yet to see what Sodebo is capable of in two and that's great !
PS : Charles Caudrelier (co-skipper of Gitana 17) said in an interview that the team was working on a new pair of foils which would better deal with the cavitation happening +45kn. This pair of foils could allow them to reach average speeds closer to 50kn. They are planning of adding it after the Jules Verne trophy.
PS bis : Cyril Dardashti, the Gitana team principal, said in the live they made on youtube today that Gitana 17 broke its previous speed record and reached a speed of 49 knots ("49 noeuds et des poussières" = "49 knots and a little more").
Imho Gitana is the faster boat of the fleet and I wouldn't be supprised if we see a gap of performance with Sodebo.
- It has been foiling since its launch back in 2017 and the Gitana had team already experimented foiling with their old MOD70 (now Maserati), while Sodebo has only been foiling since it received its daggerboard foil 6 months ago.
- Gitana 17 also has an active flight control system which controls the roll and peach of the boat (in french we call it "enslavement", I don't know how to translate it without it sounding weird). Sodebo flight is manually controlled through a wheel in the cockpit.
- Gitana looks to me like the most developped boat, as the team has spend lots of time refining the boat in various areas like aerodynamic efficiency with things like the fairings, the cockpit and the closing of the gap between the boom and the roof, etc. Sodebo had far less time to be developped as it is 2 years younger in comparaison. The S team added many upgrades before summer which made the boat faster, but they still have a lot of room to improve the performance of Sodebo. A engineer of the Gitana team said in a recent video that they improved the speed of the boat by 10% since its launch.
In the end the two boats are two beasts and they are close in terms of performance, but Gitana exploits much more of its potential than Sodebo does. Sodebo has the potential to be faster than Gitana thanks to its design but it needs a bit more time. We have yet to see what Sodebo is capable of in two and that's great !
PS : Charles Caudrelier (co-skipper of Gitana 17) said in an interview that the team was working on a new pair of foils which would better deal with the cavitation happening +45kn. This pair of foils could allow them to reach average speeds closer to 50kn. They are planning of adding it after the Jules Verne trophy.
PS bis : Cyril Dardashti, the Gitana team principal, said in the live they made on youtube today that Gitana 17 broke its previous speed record and reached a speed of 49 knots ("49 noeuds et des poussières" = "49 knots and a little more").
TPG
Super Anarchist
The new foils didn't make it onto the boat because of the rona.
stief
Super Anarchist
F18 Sailor
Super Anarchist
Peach = pitch. I agree that the active flight control system is probably worth a 5-10% performance gain over Sodebo averaged over a 24h period in the same weather conditions.
I tried the automatic English subtitles, but I think that the constant humming of the foils is messing up with the voice recognition algorithm.... Nothing special in the VHF discussion, Thomas Coville saying that it is great to have them nearby and wishing each other to take care...
What I found interesting is that at the end, Thomas Coville is not too sure who exactly he was talking to, on Gitana, so he asks his crew. And his crew anwers without hesitation, "Erwan". aka Erwan Israël. You can tell it is a small world; they know each other well enough to recognise a voice on the VHF...
I also liked the last comment from Thomas Rouxel: "and we are gone for 40 days of match-racing! You remember the Volvo race? Bah, it's the same thing... but at 45 knots..."
