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AMERICA’S CUP. GROUPAMA TEAM FRANCE LAUNCHES AN ASYMMETRIC CATAMARAN

Giacomo Giulietti
March 17, 2017

The new AC 50 Groupama Team France catamaran was launched and christened in Bermuda by Elise Bakhoum, Rigging Manager of the French sailing team. As the only woman on Groupama Team France’s shore team, she poured the champagne over the bow , as the French do, rather than breaking the bottle. The new catamaran is the means chosen to compete the next 35th America’s Cup by three “pillars” of the white-red-blue sailing: Franck Cammas, Michel Desjoyeaux and Oliver de Kersauson.

Pioggia di champagne, e non rottura della bottiglia, come da tradizione francese per Groupama Team France. Foto: Eloi Stichelbaut/ Groupama Team France.

After this launch, all the six catamarans of the AC class are now on water . Five of them, including Groupama Team France, Oracle (USA), Softbank Team Japan (Jpn), Artemis (Swe) and Land Rover Bar (Gbr), were all launched in Bermuda. The sixth one, Emirates Team New Zealand, currently the most favourite for the 2017 edition, was launched and still is in Auckland. Maybe, the team doesn’t want to make its pedal-powered boat approach to other competitors.

The launch offered the chance of taking a look at the hydrodynamic appendages of the boat, the L-shaped foils and the T-foil rudders which are the only two elements teams are allowed to adjust in order to improve boat performances. Except for foils, boats are all monotypes further the new rules of the America’s Cup which, trying to reduce costs , in fact change the tradition of the race.

Un'immagine che mette in evidenza l'asimmetria delle due derive. Dritta quella di... dritta, curva quella dello scafo di sinistra. Foto: Eloi Stichelbaut/ Groupama Team France.

This limitation make teams focus on the only one adjustable section of the boat. With a further limit, however, indicated by the class rules: former Ac 45 catamarans, used as study and training platform, could have six shafts and twelve tips.

On the contrary, new Ac 50 catamarans can have just four shafts and eight tips which mustn’t represent more than 30% of the total foil weight. Length, however, has no limits.

Buona parte di tutto il Team France in posa a Bermuda per il varo dell'Ac50. Da notare che sulle 74 persone parte del team, solo nove sono i velisti. Foto: Eloi Stichelbaut/ Groupama Team France.

The difference between the two foils of Groupama Team France is evident. The starboard one is a right L while, on the other one, both shaft and tip are more curved. The current rule doesn’t require the Ac 50 catamarans to be configured symmetrically . As a result, port and starboard foils can be different and asymmetric. ” There’s more emphasis on starboard tack than port tack. There are two high-speed reaching legs on starboard tack”, claimed Martin Fisher, one of the designers in The Royal Gazette. We only have to wait for the next races to see whether the French have really found the egg of Columbus.

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The AC50 Groupama, a Franco-Swiss success for Multiplast

The AC 45 Turbo Groupama which already contains parts of the AC50

Multiplast delivered the AC 50 catamaran from Groupama Team France for the America's Cup. A beautiful operation for the Carboman group which makes use of its Franco-Swiss synergies.

From AC 45 Turbo to AC 50

Constrained by his budget, the French America's Cup challenge had to reuse elements from his AC 45 Turbo, on which he was sailing for the preparatory series, to build the catamaran that will defend the tricolour chances on the America's Cup in Bermuda in May 2017. The preparation of Groupama Team France's new foil yacht took place at the Multiplast yard in Vannes at the end of December 2016 and the beginning of 2017.

The yard crews removed the 45-foot floats. They then fitted the longer hulls of the AC 50 instead. Assembly and painting represented 2500 hours of work for Multiplast .

Franco-Swiss synergy

The Carboman group brings together the Multiplast site in Vannes and the Décision workshops in Switzerland. It is in these workshops of the Swiss confederation that the hulls of the new 50-foot boat were built between May and November 2016. They then reached Brittany by road.

Concerted work with Team France

Obviously very involved, the technical team of the French challenge also worked more than 2000 hours to integrate the electronic and hydraulic systems. "New ideas collected during the 5 months of sailing on the AC45 Turbo test boat have also been integrated" adds Ben Wright, head of Frank Cammas' technical team.

Technical recognition

With the importance of weight and respect for the gauge in the America's Cup , the choice of Multiplast is a mark of confidence on the part of Groupama Team France, and a recognition of its know-how. Bruno Dubois, team manager of Groupama Team France confirms this." Thanks to the synergy of the Carboman Group companies, we have benefited from the expertise and know-how of both Multiplast in France and Décision in Switzerland." Let's hope that the collaboration will be as positive in sporting terms as for Franck Cammas' previous Multiplast boats...

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AC50/F50 Hull Drawings

Discussion in ' Multihulls ' started by Nordschleife , May 25, 2021 .

Nordschleife Junior Member

As the title suggests, I am looking for hull drawings for an AC50/F50 catamaran. The hulls are one-design, so I don't think they are top-secret team information or anything. Looking to build a 25 foot "AC25" doublehanded foiling cat this summer, so I need the hull design.

oldmulti Senior Member

The following are not AC 50 but may help. The last address is a discussion of how to possibly get the lines of an AC 50. Chevalier Taglang: Scoop: AC72 Drawings unveiled http://chevaliertaglang.blogspot.com/2013/06/scoop-ac72-drawings-unveiled.html Chevalier Taglang: 35th AMERICA'S CUP: AC 50 drawings http://chevaliertaglang.blogspot.com/2017/07/35th-americas-cup-ac-50-drawings.html Aerodynamic Simulation of AC50 Yacht http://www.artemisracing.com/en/videos/2759_Aerodynamic-Simulation-of-AC50-Yacht.html AC50 or AC75 CAD Drawings https://forums.sailinganarchy.com/index.php?/topic/195662-ac50-or-ac75-cad-drawings/

Attached Files:

Large_3ac45.jpg, ac72-etnzlines2a.jpg.

RC 1/5 Scale AC50 Foiling Catamaran

F50 Foiling Cat----AC 50 reborn?

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Austin Lake Catamaran Association

Tag archives: ac50 catamaran, have a need for speed.

Check out multiple videos on the YouTube site about SailGP, an international racing circuit, started in 2019, that uses the high tech F50 catamaran, derived from the AC50 catamaran used for the 2017 America’s Cup. The boats are capable of speeding along at nearly 60 MPH when they rise up and “fly” on their winged foils. Instead of a sail, they utilize 1 of 3 heights of wing, that operates much like an airplane wing. The wings are 18M/59 Ft for heavy winds, 24M/79 Ft for medium winds, and 29M/95 Ft for light air. There are a whole series of videos regarding the SailGP program on YouTube.

THE BOATS: AC75, AC40 & LEQ12

Although foiling feels like a recent revolution to take the world of watersports by storm, it has been at the heart of America's Cup racing for over 10 years.

It was August 2012 when the sailing world was turned upside down by a 72-foot catamaran flying in the Hauraki Gulf. Emirates Team New Zealand had brought foils to the America's Cup, changing the face of top-level yacht racing forever.

Six years later, in 2018, the publication of the AC75 Class Rule marked the beginning of a new sailing era. The engineering and sailing techniques needed to get the AC75 to fly completely differed from anything seen before.

During the 36th America's Cup in 2021, the AC75 proved themselves to be unique and kept millions of fans worldwide glued to their screens. It was then no surprise that the organisers were keen to continue with the AC75 rule for the Louis Vuitton 37th America’s Cup in Barcelona, albeit with several improvements to promote faster flight and incorporate upgraded technology. But the organisers went further. With a focus on youth and women being paramount to growing the sport into the future, a new class of boats was introduced–the AC40–specifically for this purpose. As the smaller sister-ship of the AC75, the AC40 launched in Auckland to much acclaim with speeds hitting the "high 40s" almost immediately straight out of the box under the skillful command of Emirates Team New Zealand in September 2022.

AC75: AMERICA'S CUP BOAT

On the 15th of November 2021, eight months after the Kiwis successfully defended the America's Cup, an updated 'Version 2' of the AC75 Class Rule was released.

The boats will be a step on from what we saw in Auckland in 2021. The foils will be larger to promote quicker lift and faster flight. The boats will be lighter and, onboard, the electronics and software systems will be vastly upgraded. To save weight, the number of crew on the AC75 has been reduced from 11 to 8. The move to reduce the crew means cycle power is again legalised, and the cyclors, introduced by Emirates Team New Zealand in 2017, might return to the game.

Several of the elements are strict one-design, such as the mast, rigging, foil cant-arms and cant hydraulics but the scope for design elsewhere is broad. To keep costs under control, it was also determined that teams would only be allowed to build one AC75 so the demand on getting the design right is at a premium. The boats will be expected to fly at speeds touching 50 knots in winds that average 12 knots in late summers in Barcelona.

AC40: YOUTH, WOMEN & TRAINING

New for the Louis Vuitton 37th America's Cup, the AC40 is a multi-use foiling monohull that all the confirmed teams will use for sailing and testing purposes. The AC40 is also the nominated boat for both the UniCredit Youth & Puig Women’s America’s Cup events where they will be sailed in strict one-design. The confirmed teams will also use the AC40 in competitive events leading up to the America’s Cup and several of the teams have two boats on order. The AC40 is being built by McConaghy’s in China. The foils and systems are being delivered by the Emirates Team New Zealand North Shore Facility and delivered in strict order of entry to the America’s Cup. Teams may modify and test out componentry on the AC40, and for this purpose, they will be deemed as a LEQ12 (see below), but for competition purposes in the UniCredit Youth & Puig Women’s America’s Cup, they will be returned to one-design according to strict rules around those specific events. Early trials of the AC40 by Emirates Team New Zealand have been sensational with speeds recorded in the ‘high-40-knot’ bracket and it is anticipated that this new class will form a global circuit both before and after the America’s Cup. For the UniCredit Youth & Puig Women’s America’s Cup, aside from the confirmed entries from the America's Cup syndicates, yacht clubs from around the world are being invited to form teams on a strict one-nation, one-entry basis and the finals of the youth and women’s events are scheduled on key dates of both the Louis Vuitton Cup (Challenger Selection Series) and Louis Vuitton 37th America's Cup Match dates.

LEQ12: TESTING ONLY

Entrants for the Louis Vuitton 37th America’s Cup are required to build one AC75 and purchase at least one AC40 but within the rules there is also the opportunity for teams to build one, new, test boat with the stipulation that it must be ‘Less than or Equal to 12 metres in overall length.’ The term LEQ12 was thus coined and it’s a nod to a well used term in computing ‘LEQ’ and was the most accurate description of the vessel. To date, two teams have built dedicated LEQ12s–INEOS Britannia and Luna Rossa Prada Pirelli–and these boats are loaded with sensors, cameras and measuring devices in order that the design team can collate data and calibrate their design software packages in a real-world environment. For the sailors too, it is an opportunity to hone monohull foiling techniques and have the ability to try new sailing styles as well as test new componentry in a relatively controlled environment, and with far fewer consequences than trialling something new on a powerful AC75 at full scale. The two specifically built LEQ12s to date are notably different in design with the Italian LEQ12 being of similar design to the winning ‘Te Rehutai’ of Emirates Team New Zealand during the 36th America's Cup whilst the British LEQ12 is a more extreme design to give a baseline of validation to the INEOS Britannia design team that is supported by Mercedes F1 Applied Science.

How many new AC75s can a team build

When agreeing on the new format for the 37th America’s Cup, the Defender and the Challenger of Record were determined to keep a lid on costs and deliver a sustainable event that could attract additional entries without a very high financial barrier to entry. During the 36th America's Cup, teams were allowed to build two AC75s but in the final Protocol for the 37th America's Cup, it was agreed that teams could only build one AC75 to compete in the America’s Cup in Barcelona. The introduction of the AC40 class allowed for teams to purchase these for either two-boat training or as test boats and a further concession was permitted in that teams could build one specific LEQ12 for testing and training purposes. By implementing the one-boat build rule for the 37th America's Cup, a high premium is placed on getting the final design right as there is little opportunity to change the fundamental design of the boats after launch. The world’s greatest naval architects, designers and engineers have been employed by all the teams with several partnering with complementary sports engineering functions such as Red Bull Advanced Technologies and Mercedes F1 Applied Science. The design race for the Cup is therefore, as intense as ever.

Can older AC75s be used and/or modified?

The first-generation AC75s that were used at the 36th America's Cup in 2021 may be used for training purposes by all of the confirmed teams in the run-up to the Louis Vuitton 37th America's Cup in Barcelona. To date, two teams–American Magic and Alinghi Red Bull Racing–have opted to re-launch these first-generation boats and use them as test boats and in the case of Alinghi Red Bull Racing, the Swiss who were not present during the 36th America's Cup, purchased Emirates Team New Zealand’s first boat ‘Te Aihe’ to train in Barcelona. There are, however, strict rules on developing these first-generation boats with the number of foil wings, flaps, rudders, foil arms, masts, hull surfaces and sails being strictly limited. This could well be the reason why the other teams have elected to develop LEQ12s or to adapt their AC40s into LEQ12s, as is the case with Emirates Team New Zealand, where the limits on componentry and testing are far less stringent, affording more scope for design development and analysis.

When does an AC40 become an LEQ12?

As mentioned above, in relation to the AC40, these boats are delivered in one-design format, but some teams may elect to take them out of one-design to test out componentry, and in this case, those AC40s will be deemed as ‘LEQ12s’ until returned to one-design configuration again. Change anything on your AC40 outside of the very strict class rules on componentry, and it becomes a LEQ12. In order for it to be used in the planned pre-regattas or the UniCredit Youth & Puig Women’s America’s Cup events it must be returned to the agreed one-design. Immediately after the necessary commissioning process of the very first AC40 that was delivered to Emirates Team New Zealand in September 2022, the team made changes to the cockpit configuration and specific controls that the crew use; This immediately converted the Emirates Team New Zealand AC40 to a LEQ12.

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Abordage Oracle Team USA 17 - Catamaran AC 50-2017

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Abordage Oracle Team USA 17 - Catamaran AC 50-2017

Brand	Abordage
Material	Acrylic
Mounting Type	Tabletop
Cartoon Character	American
Item Weight	20 Pounds

About this item

ORACLE TEAM USA 17 - Catamaran AC 50 - 2017
Abordage is proud to be the Preferred Supplier of ORACLE TEAM USA and wants to share with you its ultimate scale model: ORACLE TEAM USA '17', Defender of the 35th America's Cup - Bermuda 2017. Scale 1/64 9.25" L x 5.25" W x 16" H ( or 23.5 cm L X 13.4 cm W X 41 cm H ) This AC 50 Catamaran high-end desk model made of resin, photo-etched parts, acrylic base, North Sails fabrics comes with support and a plexiglas cover 11.75 " L x 8" W x18 H (or 30 cm L x 20 cm W x 46 cm H).
America's Cup Boats

Product Description

Discover the ORACLE TEAM USA '17' desk model and its display case. Abordage is proud to be the Preferred Supplier of ORACLE TEAM USA and wants to share with you its ultimate scale model: ORACLE TEAM USA '17', Defender of the 35th America's Cup - Bermuda 2017. Scale 1/64 9.25" L x 5.25" W x 16" H ( or 23.5 cm L X 13.4 cm W X 41 cm H )

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Brand	Abordage
Material	Acrylic
Mounting Type	Tabletop
Cartoon Character	American
Item Weight	20 Pounds
Product Care Instructions	Wipe Clean
Collection Name	All
Seasons	All Seasons
Item Weight	20 pounds
Manufacturer	Abordage
ASIN	B076PR7SYM
Is Discontinued By Manufacturer	No
Assembly required	No
Number of pieces	1
Batteries required	No

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Emirates Team New Zealand – Catamaran AC 50 – 2017 – desk model

The Emirates Team New Zealand – Catamaran AC 50 – 2017 – desk model, winner of the 35th America’s Cup in Bermuda.

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9.25″ L x 5.25″ W x 16″ H ( or 23.5 cm L X 13.4 cm W X 41 cm H )

This AC 50 Catamaran high-end desk model made of resin, photo-etched parts, acrylic base, North Sails fabrics comes with support and a plexiglas cover 11.75 ” L x 8″ W x18 H (or 30 cm L x 20 cm W x 46 cm H)

Weight	20 kg

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31-03-2021, 04:29
Boat: Chris Craft 381 Catalina	: engines. Mine are right under the floor with less than great . So after running when the engines are warm, it's definitely harder to get things cooled down. My maintaining low/mid 70s in 95* example (with just the 16k running) was with cold engines. Aft stateroom was in the mid 80s at that point, forward maybe a degree or 2 warmer than the salon. And there was only a 1 or 2 hour period at the hottest part of the day where the A/C didn't cycle off at all. So I'd say my 36k BTU is a bit overkill for most situations.

31-03-2021, 04:58
Boat: 50ft Custom Fast Catamaran	done today and see how it does. They required some extra to hold them in place. Plus I took a week off for sanity. Ha ha Hoping some of the other owners all over this forum chime in on this one. Need a few more data points.

31-03-2021, 07:50
	, heat energy is then extracted by your system, if you have more coming in than going out, your system will not be nearly as efficient, in my nearly 20 years of designing, building air con and refer systems, we have seen this many a time, most are large with windows that are facing the sun at a low angle, I've measured glass temps close to 130f on some of them. A nice set of snap on white covers will enable the AC to be much more effective, and the cost is nowhere near upsizing the system itself. But hey, good luck!

31-03-2021, 07:57

Boat: 50ft Custom Fast Catamaran

, heat energy is then extracted by your system, if you have more coming in than going out, your system will not be nearly as efficient, in my nearly 20 years of designing, building air con and refer systems, we have seen this many a time, most are large with windows that are facing the sun at a low angle, I've measured glass temps close to 130f on some of them.
A nice set of snap on white covers will enable the AC to be much more effective, and the cost is nowhere near upsizing the system itself.
But hey, good luck!

31-03-2021, 08:28
Boat: Down East 45 Brigantine schooner	, and two 16,000 Btu units were the first things I bought. This made life bearable, but it was still struggling in the heat of the summer. I then fitted dark window tinting, like used in vehicles, to all windows and . This helped, especially on the large windows. Then I replaced all the foam roof headlining, which was scrabby anyway, with ¼ plastic boards and an air gap of about 1. Better deck means better AC. Next, I insulated the boats floorboards (sole) with 2 foam and a ¾ internal false floor. Cold air sinks, and unless you have airtight floorboards and hatches, some cold air will find itself into the . This also insulated the heat from rising upwards and reduced the . I then fitted powerful blowers, to extract the heat out the back of the boat. All these things improved the efficiency of my two AC units and keeping cool in the boat is as important as making it in the first place.

31-03-2021, 09:18
Boat: 35ft classic ketch/yawl.	boats in the tropics is by chucking some buckets of seawater over the deck. Modern update could be using the deck-wash and a sprayer. sunshades 8-10ft up deflects a lot of heat away from the deck and windows, white cloth works well. Both work well and will massively reduce you A/C energy bill. Getting airflow through the hatches, assisted by fans, also reduces the sense of heat and keeps people cool even if it does not lower the temp. I find this keeps thing comfortable as long as the temp is low30's C or below. I did wish I had A/C in when it got to 37+ at night and I was stuck in a boatyard so could not even go for a dip but that has been the only time.

31-03-2021, 09:42

Boat: Knysna 440 once I get my new dock and the canal gets dredged

are being used.

Not looking for this type of information, especially when incorrect.

Looking for BTUs on 50ish foot catamarans or similar, to compare and see how mine stacks up.

Data points so far:

50ft - 60,000 BTUs
38ft Chris Craft - 36,000 BTUs
50ft Mono - 16,000 BTUs

31-03-2021, 09:54

Boat: 50ft Custom Fast Catamaran

attempts usually end up a mess). These products usually pay for themselves in three years versus the extra required for a larger A/C system.
Should the glass get broken, the film has the added benefit of holding it together until you can get it replaced. Sounds like you already have more A/C than you should need for just a salon.

31-03-2021, 10:15
Boat: Lagoon 500	500, full time in Abu Dhabi. I've installed a 2 ton samsung split system. The fixed boat AC doesn't have a chance during summer here as the temp gets too high.

31-03-2021, 10:18
Boat: 50ft Custom Fast Catamaran	. So....

31-03-2021, 10:20

Boat: 50ft Custom Fast Catamaran

500, full time in Abu Dhabi. I've installed a 2 ton samsung split system. The fixed boat AC doesn't have a chance during summer here as the temp gets too high.

31-03-2021, 10:40

Boat: 50ft Custom Fast Catamaran

, and two 16,000 Btu units were the first things I bought. This made life bearable, but it was still struggling in the heat of the summer.
I then fitted dark window tinting, like used in vehicles, to all windows and . This helped, especially on the large windows.
Then I replaced all the foam roof headlining, which was scrabby anyway, with ¼ plastic boards and an air gap of about 1. Better deck insulation means better AC.
Next, I insulated the boats floorboards (sole) with 2 foam and a ¾ internal false floor. Cold air sinks, and unless you have airtight floorboards and engine hatches, some cold air will find itself into the bilge. This also insulated the generator heat from rising upwards and reduced the engine .
I then fitted powerful bilge blowers, to extract the generator heat out the back of the boat.
All these things improved the efficiency of my two AC units and keeping cool in the boat is as important as making it in the first place.

31-03-2021, 11:20
Boat: Chris Craft 38 Commander 1965	coverings like mine you can trace the covers and use them as patterns on the silver expanded poly water wrap for a pretty fair insulator. Since my boat has a fly bridge where pretty much all the is done the main stays closed with sunbrella snap curtains with the insulation sandwiched between the canvas and the glass. If need to take them off just roll them up. They make a considerable difference. I dont have any specific numbers to share but its easy to just put your hand on the glass inside the each way to see what can be transferred to the inside space.

31-03-2021, 11:54

Boat: 50ft Custom Fast Catamaran

wrap for a pretty fair insulator. Since my boat has a fly bridge where pretty much all the is done the main cabin stays closed with sunbrella snap curtains with the insulation sandwiched between the canvas and the glass.
If need to take them off just roll them up. They make a considerable difference. I don’t have any specific numbers to share but it’s easy to just put your hand on the glass inside the cabin each way to see what can be transferred to the inside space.

31-03-2021, 12:24
Boat: Colegate 26	and a salon. Maybe the salon could even be a 16K, depending on how much heat you're getting through the windows.

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America’s Cup 2024: What are the AC75 boats and how do they work?

The world’s oldest international sports trophy, best yachtsmen and cutting-edge design and technology come together in Barcelona for the 37th edition of the America’s Cup.

Five boats – from Italy, the United States, Britain, Switzerland and France – will spend the coming weeks racing in the Mediterranean waves to decide who will earn the honour of trying to dethrone the mighty Emirates Team New Zealand for the Auld Mug.

As the two-time defender, the Kiwis chose Barcelona’s choppy waters as the venue and helped establish the rules and boat design for this edition. They also get a guaranteed spot in the final, to be held in October.

The results of three years of work and massive investment will now be put to the test.

“It is starting to get serious in a hurry. We are now racing for keeps,” Ben Ainslie, skipper of British team Ineos Britannia, said.

Here is everything we know about the boats – AC75s – that will be racing...

“Because Barcelona is quite a lightwind venue, you don’t actually want to design foils for going at 60 knots. Acceleration and manoeuvrability are more important. So in terms of top speeds I don’t think we will see anything radically different from the top speeds we saw in the last Cup in New Zealand. Somewhere around 50 knots. But these boats would smash the boats from last time if they actually raced. I guess it’s like Formula One cars. The new boats are much faster over a lap, but they gain that time through cornering speed and acceleration rather than on the straights.” – Giles Scott (Head of Sailing, Ineos Britannia)

This is the second iteration of the AC75 after they were also used in New Zealand at the 36th Cup.

The “75” in AC75 stands for 75-feet, the length of the boat. The boats are 16 feet wide.

The AC75 is a “foiling” monohull, which means it has only one hull which lifts up out of the water on hydrofoils - or “flies” - when the wind gets above a certain speed, typically around six knots.

Although the boats look very similar, there are various changes since the last Cup.

The rules have been tweaked partly to improve light-wind performance (frankly, it looked silly when the most technologically-advanced boats in the world fell off their foils in light winds in New Zealand in 2021, bobbing around helplessly) and partly to reduce crew numbers from 11 to eight for cost and performance reasons.

The move to reduce the crew means cycle power is again legalised, and “cyclors”, the hybrid sailor-cyclists introduced by Team New Zealand in Bermuda in 2017, return.

Length: 75 feet

Width: 16 feet

Height: 26.5m from the deck

Weight: 6,200kg

Max crew weight: 700kg

Top speed: 50 knots

Eight-man crews

Crews have been reduced from 11 to eight since the last Cup.

No boat will feature anyone crossing during manoeuvres. That will be the biggest visual change for spectators. Everyone stays where they are, with four sailors on each side of the boat.

The crews sit low in their pods, out of the airstream with only their helmeted heads exposed.

Each team is slightly different in how and where they deploy their eight men, but every team has a helm, a trimmer and two cyclors on either side of their boat.

The British team are unique in that their trimmer-pilots sit at the back of the boat in the aft pods, with the two cyclors between them and the helms in the forward pods.

The cyclors’ role is to provide hydraulic power to the boat’s systems, from the foil arms to the mainsail.

The Americans are outliers in that their cyclors are “recumbent”, meaning they are sitting/lying backwards, facing up towards the sky. This position sacrifices some power - around 10-20 per cent compared to traditional cyclists - but it does free up their hands to perform secondary functions.

But it is likely that on every boat, certainly the British one, the cyclors will all have secondary roles. On Britannia, two of those roles are critical functions but not necessarily sailing-skill oriented (these might be suitable for former rowers who do not have sailing backgrounds). Two you would want to put sailors in there.

F1 crossover

The crossover between America’s Cup and F1 is becoming ever greater. Not for nothing is sailing’s most elite competition becoming known as “F1 on water”.

Carbon-fibre composites, structural analysis, hydraulic systems, control systems, electronics, data analysis, hydrodynamics and aerodynamics are just some of the overlapping areas.

Ineos Britannia have a partnership with Mercedes F1 via joint owners Ineos. The sailing team has offices in Brackley and hundreds of Mercedes staff have been seconded to the sailing project. James Allison is Chief Technical Officer of both teams. Geoff Willis is Technical Director of Mercedes-AMG F1 Applied Science and INEOS Britannia.

Each boat is equipped with a pair of T-foils, on the end of “cant arms”. Around the size of an ironing board, the foils on the AC75 are capable of lifting a seven-tonne boat out of the water.

As in the last Cup, the mainsail is “twin skin”; two membranes held together. Teams are allowed to “endplate”, or seal the mainsail onto the deck of the hull (or platform). This provides performance gains by stopping air flowing under the bottom of the mainsail, which detrimentally reduces the pressure differential between the windward and leeward sides.

The AC75 rudder allows the boat to change pitch, or trim, by providing lift. This change in pitch moves the stern of the boat closer to the ground, which increases the angle of attack on the main foils. The foils provide lift, which moves the entire platform up.

Broaden your horizons with award-winning British journalism. Try The Telegraph free for 3 months with unlimited access to our award-winning website, exclusive app, money-saving offers and more.

Cram session: Yahoo experts share their final piece of draft advice | Yahoo Fantasy Forecast

We’ve made it folks, this the final pod of 'Cram Week' and concludes our draft season coverage. And we know for the majority of you - your most important drafts will be this holiday weekend. And we know time is of the essence, which is why today’s pod includes every Yahoo Fantasy analyst sharing their final piece of draft advice. It's also why this is the shortest pod of the entire year. Happy drafting everyone.

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Latitude:	47�41'59"N (47.699722)
Longitude:	40�16'56"E (40.282222)
Elevation:	367 ft (112 m)
Variation:	8.97�E (WMM2020 magnetic declination) 0.09� annual change
Runways:	1
Longest:	1640 × 328 ft (500 × 100 m)
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COMMENTS

AC50
AC50. The AC50 (defined in the America's Cup rules as AC Class yacht, or ACC) was a wingsail catamaran development rule that governed the construction of the yachts used in the 2017 Louis Vuitton Cup and the 2017 America's Cup. Like the larger AC72s used in the 2013 America's Cup, AC50s used L-shaped daggerboard stabilizers as well as T-shaped ...
America's Cup 36: AC50 vs AC75…
Render comparison by Americas Cup . 23 vs 15 mts boat length diff, 2.5 vs 6.5 Tonnes gap plus the killer external massive foils of the AC75 give a quick notion of the extreme Tinkering done just to match or surpass the AC50 performance with a "monohull". We hope this new AC75 ballasted flying beast can provide faster boats, double the ...
GROUPAMA TEAM FRANCE AC50 CAT LAUNCHED
The new AC 50 Groupama Team France catamaran was launched and christened in Bermuda by Elise Bakhoum, Rigging Manager of the French sailing team. As the only woman on Groupama Team France's shore team, she poured the champagne over the bow, as the French do, rather than breaking the bottle.The new catamaran is the means chosen to compete the next 35th America's Cup by three "pillars ...
The AC50 Groupama, a Franco-Swiss success for Multiplast
From AC 45 Turbo to AC 50 . Constrained by his budget, the French America's Cup challenge had to reuse elements from his AC 45 Turbo, on which he was sailing for the preparatory series, to build the catamaran that will defend the tricolour chances on the America's Cup in Bermuda in May 2017. The preparation of Groupama Team France's new foil yacht took place at the Multiplast yard in Vannes at ...
Radio Controlled Foiling America's Cup Catamaran: AC 50RC
The AC guys are calling their boat the AC 50-in my opinion we should call this boat the "AC 50RC". Beam: max 3.75'=45"/115cm ( amended 8/2/15-) Tentative rules based on my D4Z: --movable ballast system legal and may exceed maximum beam-no restrictions, -- foils may extend outside the maximum beam.
AC50/F50 Hull Drawings
As the title suggests, I am looking for hull drawings for an AC50/F50 catamaran. The hulls are one-design, so I don't think they are top-secret team information or anything. Looking to build a 25 foot "AC25" doublehanded foiling cat this summer, so I need the hull design. Nordschleife, May 25, 2021. #1.
F50s upgrades preview over AC50s
SailGP's new F50 wingsailed catamaran will be an incredible high performance racing machine. The F50 is predicted to break the 50 knot barrier as the most challenging, high-tech one-design racing boat ever produced. At a glance, one could be forgiven for thinking it looks familiar to the AC50 used at the last America's Cup in Bermuda.
ORACLE TEAM USA 17
This AC 50 Catamaran high-end desk model made of resin, photo-etched parts, acrylic base, North Sails fabrics comes with support and a plexiglas cover 11.75 " L x 8" W x18 H (or 30 cm L x 20 cm W x 46 cm H). Data sheet. Scale: 1/64: Display Case: Yes: By testreview T. on .
«Like the America's Cup», but even faster: the F50 winged catamaran is
The F50 winged catamaran is essentially a seriously modified AC50 class, familiar to America's Cup fans «America's Cup». The class was wizened on for a year by the New Zealanders of Core Builders Composites. The resulting boat is 12-15% faster than its progenitor AC50 and can reach up to 53 knots. «It's great to feel this new, incredibly ...
AC50 Catamaran
Check out multiple videos on the YouTube site about SailGP, an international racing circuit, started in 2019, that uses the high tech F50 catamaran, derived from the AC50 catamaran used for the 2017 America's Cup. The boats are capable of speeding along at nearly 60 MPH when they rise up and "fly" on their winged foils.
Radio Controlled Foiling America's Cup Catamaran: AC 50RC
My proposal (based on an earlier suggestion from John Xman) is to adopt the same change for the model: Length 1.5 m or 4.92 ' (59"). The AC guys are calling their boat the AC 50-in my opinion we should call this boat the "AC 50RC". Beam: max 3.75'=45"/115cm ( amended 8/2/15-) Tentative rules based on my D4Z:
THE BOATS: AC75, AC40 & LEQ12
It was August 2012 when the sailing world was turned upside down by a 72-foot catamaran flying in the Hauraki Gulf. Emirates Team New Zealand had brought foils to the America's Cup, changing the face of top-level yacht racing forever. Six years later, in 2018, the publication of the AC75 Class Rule marked the beginning of a new sailing era.
fine ship models
The Emirates Team New Zealand - Catamaran AC 50 - 2017 - desk model, winner of the 35th America's Cup in Bermuda. $495.00 . Add to cart. Quick view . Add to Wishlist . Add to Compare. Land Rover BAR - Catamaran AC 50 - 2017 desk model MN-A40 Land Rover BAR .
ORACLE TEAM USA 17
Buy ORACLE TEAM USA 17 - Catamaran AC 50 - 2017 - America's Cup Boats: Toys & Games - Amazon.com FREE DELIVERY possible on eligible purchases
Emirates Team New Zealand
The Emirates Team New Zealand - Catamaran AC 50 - 2017 - desk model, winner of the 35th America's Cup in Bermuda.
Land Rover BAR
At Abordage, we specialize in creating custom replica boat models for private owners, yacht designers, and shipyards.With over 30 years of experience and a t...
Artemis Racing
At Abordage, we specialize in creating custom replica boat models for private owners, yacht designers, and shipyards.With over 30 years of experience and a t...
How Many BTUs AC on your 50ft (ish) catamaran
Posts: 11,832. Re: How Many BTUs AC on your 50ft (ish) catamaran. Quote: Originally Posted by CalmSeasQuest. I have a FP Saba (50', 4 cabin + smaller midship crew cabin) with 60K BTU (3X 12K BTU, 3X 8K BTU Dometics) It's more than enough to cool the entire boat under any conditions encountered thus far in the Caribbean.
How Many BTUs AC on your 50ft(ish) catamaran
How many BTUs should be in a 50 foot catamaran generally? You skipped that. There is an enormous difference between an open pane window, and a window with a tight fitting reflectix and XPS panel in it. Given your experience, you should know this. There is a reason you see a class a RV is in parking lots with reflectix in the windows.
Shakhty Map
Shakhty is an airfield in Rostov Oblast, Southern Russia. Mapcarta, the open map.
America's Cup 2024: What are the AC75 boats and how do they work?
Top speed: 50 knots. Eight-man crews. Crews have been reduced from 11 to eight since the last Cup. No boat will feature anyone crossing during manoeuvres. That will be the biggest visual change ...
Shakhty
Third Sunday of September. Website. www .shakhty-gorod .ru. Shakhty (Russian: Шахты, IPA: [ˈʂaxtɨ]) is a city in Rostov Oblast, Russia, located on the southeastern spur of the Donetsk mountain ridge, 75 kilometers (47 mi) northeast of Rostov-on-Don. As of the 2023 Census, its population was 222,500.
KUZBASS HOTEL
Kuzbass Hotel, Shakhty: See 11 traveler reviews, 22 candid photos, and great deals for Kuzbass Hotel, ranked #3 of 7 specialty lodging in Shakhty and rated 4 of 5 at Tripadvisor.
URRH
Airport information about URRH - Shakhty' [Shakhty' Airport], ROS, RU

AMERICA’S CUP. GROUPAMA TEAM FRANCE LAUNCHES AN ASYMMETRIC CATAMARAN

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The AC50 Groupama, a Franco-Swiss success for Multiplast

Multiplast delivered the AC 50 catamaran from Groupama Team France for the America's Cup. A beautiful operation for the Carboman group which makes use of its Franco-Swiss synergies.

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THE BOATS: AC75, AC40 & LEQ12

AC75: AMERICA'S CUP BOAT

AC40: YOUTH, WOMEN & TRAINING

LEQ12: TESTING ONLY

How many new AC75s can a team build

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