d8c8426c-1f66-4be0-ba9f-69300ffb6a63/abouttherace/theboats/tankedup/2006-02-20T14:41:17.387The Boats | Tanked up & TruckingThe Boats | Tanked up & TruckingVolvo Ocean Race 2008-2009 | The Boats | Tanked up & Truckingfalsee92ea8f8-949d-4528-9782-0a28bde633f8Guide Generic 01Defaultguide_generic_01.xslt7167e3a0-cae7-4c24-894e-d14bcf74d584Default2006-02-21T16:17:47.9722-08-08 1351 GMTRace Guide | The Boat | Tanked Up And Truckingb2234b89-34fb-4b09-9384-553cafdbfed916db4302-d34e-49ed-8994-f34298f9fdd6ImagePrimaryMovcd8a29f7-3ee6-42c8-a75b-7633227ee849images/assets/atr_tankedup.pngtrueTANKED UP & TRUCKINGatr_tankedup.png.png57605a3c72abe-747e-4d2d-944e-da161a587e54images/assets/atr_tankedup_thumb.pngfalseTANKED UP & TRUCKINGatr_tankedup_thumb.png{Width=605, Height=5.png910010ContentImageATR Tanked up & Trucking2006-02-21T12:11:59.7falsefalsefalsefalse418cbdeb-1bfe-4e33-8ea2-a88c23f68520ImagePrimaryMovfb2cc857-0566-464d-8a83-931d0d482e6fimages/assets/theboatheaderimage_605x118.jpgtrueThe inside of the hull of a Volvo Open 70 yachttheboatheaderimage_605x118.jpg.jpg1186054fa1116d-edfd-4414-87de-0b9fff8ba497images/assets/theboatheaderimage_605x118_thumb.jpgfalseThe inside of the hull of a Volvo Open 70 yachttheboatheaderimage_605x118_thumb.jpg{Width=605, Height=1.jpg201001Leg0110ContentImage16TeamABN AMRO ONE17TeamABN AMRO TWO18TeamEricsson Racing Team19TeamPirates of the Caribbean20TeamBrasil 121Teammovistar22TeamBrunel
theboatheaderimage_605x118,The inside of the hull of a Volvo Open 70 yacht2005-11-07T16:05:23.22falsefalsefalsefalsec8f71f41-183d-4916-bb9b-e4bbca7b883cImagePrimaryMov361d18f3-dc15-47cb-9651-a8709acc7eb9images/assets/TankedUp_338x246.jpgtrueThe Testing Tank used for the Volvo Open 70 hullsTankedUp_338x246.jpg.jpg246338b30931f5-e440-478d-8146-36e45d8129b8images/assets/TankedUp_338x246_thumb.jpgfalseThe Testing Tank used for the Volvo Open 70 hullsTankedUp_338x246_thumb.jpg{Width=338, Height=2.jpg731001Leg0110ContentImage16TeamABN AMRO ONE17TeamABN AMRO TWO18TeamEricsson Racing Team19TeamPirates of the Caribbean20TeamBrasil 121TeammovistarTankedUp_338x246,TankedUp_338x246,Testing Tank for the Volvo Open 70 hulls2005-11-07T16:05:23.22falsefalsefalsefalse3e67a946-e133-4b27-b1a4-067cb71175beImagePrimaryMov4b457716-3983-449f-bb6d-076820aa3a2fimages/assets/IMG1265_101x105.jpgtrueA worker adds final touches to the paintwork of Pirates of the Caribbean IIIMG1265_101x105.jpg.jpg105101©Patrick Anderson69d3687c-8469-44a1-964b-d12bc17c2107images/assets/IMG1265_101x105_thumb.jpgfalseA worker adds final touches to the paintwork of Pirates of the Caribbean IIIMG1265_101x105_thumb.jpg{Width=101, Height=1.jpg10096©Patrick Anderson1Leg0110ContentImage20TeamBrasil 121TeammovistarBlack Pearl Volvo Open 70 Work keeps up at high pace in the Green Marine yard at Southampton Putting final touches to the paintwork on the  massive keelwith a final coat of distinctive orange paint ©Patrick Anderson, Pirates of the Caribbean ll , Southampton, Construction Pirates of the Caribbean ll, IMG1265_101x105,IMG1265_101x105,IMG1265_101x105,Adding final touches to the paintwork of Pirates of the Caribbean II2005-11-07T16:05:23.22falsefalsefalsefalse8ffd615e-c234-4e1b-aae9-19cd0f572ba8ImagePrimaryMove1262121-5450-40e3-ac83-38a961fe698dimages/assets/VOR0512_101x95.jpgtrueAn aerial view of the hull of Team ABN AMRO's first Volvo Open 70 yacht ready to leave the factoryVOR0512_101x95.jpg.jpg951016dd11c0b-4e36-4462-9bbe-c2a7d18d6865images/assets/VOR0512_101x95_thumb.jpgfalseAn aerial view of the hull of Team ABN AMRO's first Volvo Open 70 yacht ready to leave the factoryVOR0512_101x95_thumb.jpg{Width=101, Height=9.jpg941001Leg0110ContentImage16TeamABN AMRO ONE17TeamABN AMRO TWO18TeamEricsson Racing Team19TeamPirates of the Caribbean20TeamBrasil 121Teammovistar22TeamBrunel
TEAM ABN AMRO’s first of two VO 70 race yachts for the Volvo Ocean Race left the wharf at  LelystadDestination: the harbour of Portimao, Portugal, ABN AMRO, Leystad, Netherlands, ABN AMRO build, VOR0512_101x95,VOR0512_101x95,The hull of Team ABN AMRO's first Volvo Open 70 yacht ready to leave the factory2005-11-07T16:05:23.22falsefalsefalsefalseaa9abc9d-edbe-4f29-a918-66dfca17af0bImagePrimaryMov509fbe3c-5796-4f8b-a073-f7e80282eadbimages/assets/VOR0582_101x125.jpgtrueAndre Fonsec, crewmember of Brasil 1, with several of the boat builders constructing the deck of Brasil 1VOR0582_101x125.jpg.jpg125101© Luiz Doroneto/@Adoro fotosf66e3641-958e-422a-b4fa-00f0c2ebd854images/assets/VOR0582_101x125_thumb.jpgfalseAndre Fonsec, crewmember of Brasil 1, with several of the boat builders constructing the deck of Brasil 1VOR0582_101x125_thumb.jpg{Width=101, Height=1.jpg10081© Luiz Doroneto/@Adoro fotos10ContentImageCrew member Andre Fonsec (R) is staying locally to keep a close waytch on construction of  the deck of Volvo Open 70 Brasil 1 underway at the yard in Indaiatuba Brazil © Luiz Doroneto/@Adoro fotos, Indaiatuba, Brazil, Brasil 1 build Construction Construction, VOR0582_101x125,VOR0582_101x125,Andre Fonsec, crewmember of Brasil 1, with several of the boat builders constructing the deck of Brasil 12005-11-07T16:05:23.22falsefalsefalsefalse6ec3eee0-d069-4b50-b6a3-6c8f9fcaa706TANKED UP AND TRUCKING8736b6b8-71e1-44e8-baa1-13caf39516ffTank testing - the starting point for many racing campaignsfalsefe65b3d7-b969-4c7c-9b52-fcd2d68300f7Tank testing has long been the starting point for many racing campaigns. We look at the process and what some of the Volvo Open 70 designers hope to achieve from their research.e6757626-d0d9-4f03-afd0-9c195fbd369fa2b80e06-2b2d-4175-a0e1-42c73a12a255ImagePrimaryMov09d6e983-3422-488d-b2ef-0489e1ea3194images/assets/VOR0934_338x105.jpgtrueThe bow of Ericsson Racing Team's Volvo Open 70 yacht have its final finishing appliedVOR0934_338x105.jpg.jpg105338©Patrick Anderson25c3ff15-27f2-4844-aeec-87b0ec37f760images/assets/VOR0934_338x105_thumb.jpgfalseThe bow of Ericsson Racing Team's Volvo Open 70 yacht have its final finishing appliedVOR0934_338x105_thumb.jpg{Width=338, Height=1.jpg31100©Patrick Anderson10ContentImage16TeamABN AMRO ONE17TeamABN AMRO TWO18TeamEricsson Racing Team22TeamBrunel
Ericsson Volvo Open 70  the bow gtets its final finishing at Green Marine Lymington    ©Patrick Anderson, Ericsson, Lymington, Ericsson Construction, VOR0934_338x105,VOR0934_338x105,Final finishing of the bow of Ericsson Racing Team's Volvo Open 70 yacht2005-11-07T16:05:23.22falsefalsefalsefalse1a347570-ff53-4df8-841b-a4c0f4fa44ddImagePrimaryMov8c28d621-11fc-4175-b32b-f42241948793images/assets/VOR0655_101x105.jpgtrueBoat builders mark frames on the hull of Premier Challenge, which is being built in AustraliaVOR0655_101x105.jpg.jpg105101d1f99c33-156f-4f02-ad38-48009fa02510images/assets/VOR0655_101x105_thumb.jpgfalseBoat builders mark frames on the hull of Premier Challenge, which is being built in AustraliaVOR0655_101x105_thumb.jpg{Width=101, Height=1.jpg100961Leg0110ContentImage16TeamABN AMRO ONE17TeamABN AMRO TWO18TeamEricsson Racing Team19TeamPirates of the Caribbean20TeamBrasil 121Teammovistar22TeamBrunel
Premier Challenge Volvo Open 70 being built in Australia marking frames, Premier Challenge, Australia, Premier Challenge Construction, VOR0655_101x105,VOR0655_101x105,Marking frames on the hull of Premier Challenge, which is being built in Australia2005-11-07T16:05:23.22falsefalsefalsefalse2306b119-1e72-470f-bd76-cb111279ac23Even before the carriage in the towing tank begins to roll, the meter has already started running at a cost of up to £2,000 a dayfalseda69a3e6-156e-4080-95bc-406d5c593ff5Fast computers with staggering appetites for processing data and running sophisticated software are still no match for a design tool developed over 100 years ago. Back in the 1860s, William Froude proved to the Admiralty that playing with models was the best starting point for new ship design and, in doing so, became the father of modern hydrodynamics. His work led to the world’s first towing tank which was based in his hometown, Torquay, on England’s south-west coast. Shortly afterwards, once the advantages of testing models in a tank had been verified, Froude set up what has become the world’s most famous tank test facility at Haslar opposite Portsmouth, one of the homes of Britain’s Royal Navy, a facility that remains a leading research and development centre today.97bdf945-d8d0-4698-9906-ffbefe12980fToday the story surrounding yacht research and development is little different and, as in the past year as work was done on the latest designs for the next Volvo Ocean Race, test tanks are in high demand. The Institute for Ocean Technology tank in Newfoundland, Canada has been one of the recent favourites and has been used by both the Farr and the Reichel Pugh design offices. Other test tanks in Washington USA, Holland, Italy and the UK are among the popular choices.bc168b28-e36d-4581-b4b4-84570a4efeda“Testing models at a large scale is preferable because the forces are closer to what they would be in real life, which reduces the errors in translating model measurements up to full scale,” said Steve Morris of Farr Yacht Design. “You get the proper effect of the free surface of the water and how that interacts with the lift and drag from the hull and appendages. There are computer programmes around that try to model these sorts of phenomenon, but, at the end of the day, tank testing is something that’s been around for a long time and provides data you can believe in a bit more, at least until you’ve validated your computer work.”06990acf-6f16-49ff-98ee-41b4e0d17416But, while tank testing can be justified by designers on technical grounds, the data that the technique can produce comes at a price. Big models cost big bucks, a 1/3 scale model of a VO 70 will be around eight meters long and cost as much as £20,000 each. A well-funded programme may have several models. Even before the carriage in the towing tank begins to roll, the meter has already started running at a cost of up to £2,000 a day. A month in the tank isn’t out of the ordinary and could present you with a final bill that could buy a decent sized cruising yacht.780ea0f7-573f-469e-b887-7f7749de478034db11ff-c610-41aa-969b-846043ccbc4eTank testing is a time consuming businessfalse3101b436-f0b5-451f-bded-bece020d45afSo, what is so important about testing at this size, and precisely what do designers expect to find out about this particular new breed of racer?5e4e681a-5673-4ce4-8dec-043a8db079bfThe image of a yellow model suspended from a large metal carriage and travelling at speed is a familiar one, but for all the sophisticated structure surrounding the model, the information that is being gleaned is simple – force. The important component parts of which are lift and drag.77f3d32a-36ab-4a94-bd70-7426b803c8bdTo measure the resistance, the model is suspended from a dynamometer, a vertically mounted post (or posts) on the carriage, fitted with load sensors to measure the magnitude and direction of the forces exerted on it as the boat is towed through the water. Over a period of runs, where the model is set up in different configurations, the relative lift and drag measurements are collected, from which a fuller picture of the boat’s performance can be developed. Setting up the model and waiting for the wash from the previous run to die down takes time, which means that most facilities will achieve just four to five runs per hour. Tank testing is a time consuming business.5ec7a1eb-9239-4237-bcaa-e23a71a3fb8da561920c-5b0c-4cdd-85ba-0f44486fbd0a“Tank testing is essential to establish the variety of combinations and trade offs. It’s a big job and the tremendous complexity of the VO 70 rule makes your head hurt!”false4e32b210-1b8a-42ed-b363-06c9dd330687While the vast amount of data on a wide variety of racing boats is already out there, the potential complexity of the new VO 70s has increased the need to make such analysis. “In the days of the VO 60 it was relatively easy, there was one keel, one rudder and we just got on with the job of optimising the hull shape. Now we’ve got any number of appendages down below the hull and we have to sort those out before we move on to looking at how they will influence the hull shape and what the various options are from there,” says Steve Morris.00507ea2-b231-446f-9e7b-8ba762c4c2e2Ian Campbell of the Wolfson Unit in Southampton has considerable experience in the tank and is clear about the challenge facing designers and the need to tank test. “Tank testing means you can establish fundamental resistance properties very quickly and this allows you to see how these properties vary with basic parameters. Tanks are also good for experimenting with appendage arrangements. Anything that involves wave making resistance is also well served by tank testing,” he said. “It’s also possible to establish whether foils are being overloaded under certain conditions. This can help designers to decide whether the rig or the foils need moving to improve the balance,” he continued.dcfe952d-9f6a-4ef9-9f52-907d6a98f61dOne leading design office already well versed in canting keel configurations is Reichel Pugh Yacht design, but, as Jim Pugh explained, tank testing still remains an essential part of their development programme. “A lot of the work you do in tanks is like checking in, making sure that you're working along the right tracks,” he said. Creating a test plan is very important indeed, where identifying what you're trying to learn is as important as the information you might gain. We aim to break our designs down into several parts, namely the appendages, their positions, the hull shape, the canting system and then a complete stability study versus performance. Having assessed each component of the package we then put the pieces back together. From there we then set about finding the best hull shape to get around the race track.”4a957416-7ae8-4be5-b776-7501c3f9cf50But, while time-honoured tank testing is clearly an important part of the design process, a relatively new computer based tool, computational fluid dynamics (CFD), is changing many designers’ approaches. The process works by dividing up the hull’s surface into millions of tiny panels, typically around 1mm square, for which individual calculations are made on the resistance of each little patch. The individual results are then collated to form a map of resistances and pressures.213b2d40-e41f-4f97-90e3-fca9bbd9232aAlthough CFD does have some limitations when it comes to predicting waves and other free-surface effects, the process is good at assessing the differences in other areas deeper down from the waterline such as the hull and keel interaction, as well as the effects of the position of the centre of buoyancy. “Using CFD can allow designers to run through a wider range of variables, especially when it comes to varying appendage configurations,” says Campbell. “One of the keys to these new canting keel boats will be the balance between the dagger boards, the keel and the rudder. Getting the balance right between a negative leeway angle and positive lift on the keel is always an issue. Negative lift on the keel can mean big drag values. CFD is particularly good for assessing this. Where tank testing really scores with designers is when they are simply looking at the way the model moves through the water. Designers are generally very good with their eyes and tank testing provides a good additional visual guide as to what's going on,” he adds.1dc2e468-90f1-44f6-b2ed-3fa693df2803While the tank testing tools of the trade and the lessons learned in the mid 1800s may provide a better understanding of the issues involved, Steve Morris is under no illusion as to the effort required to recognise what might make a successful new design. “Tank testing is essential to establish the variety of combinations and trade offs. It’s a big job and the tremendous complexity of the VO 70 rule makes your head hurt!”c2c3a9d2-683b-43ff-9e54-d66d4f02d063ac57f20c-32ae-40f6-b8e4-a47fe3e1edb1ImagePrimaryMovcca7d1f1-7b35-4324-83c6-86dee0ec310fimages/assets/rolf_vrolijk.giftrueRolf Vrolijkrolf_vrolijk.gif.gif151151a261fd5-fcc1-4ddf-8ced-d6e0dbb19660images/assets/rolf_vrolijk_thumb.giffalseRolf Vrolijkrolf_vrolijk_thumb.gif{Width=115, Height=1.gif1310010ContentImageRolf Vrolijk Heading 22005-11-07T16:05:23.22falsefalsefalsefalse5c6170da-ba40-46d1-93f8-adcaf668f8e0"It's all very new and nobody has really been working in that area which is a possible reason why some of the data you might get from tank testing work could be less valid.”77f4da98-b49b-4151-9e18-3704a259e207Rolf Vrolijkfalse36525068-77b9-44eb-b46e-6c9bd18ac66bhttp://www.judel-vrolijk.com_blankThis link opens in a new browser windowFollow this link to visit the Judel Vrolijk web sitee3db36e5-ae40-4143-a741-72506a000512“This is much bigger step for design than when the Whitbread 60s came in. Designers will be looking at much higher speeds and much greater surfing possibilities. Sailing at these speeds means that you are working in areas and at Froude numbers (which predict performance) which you don't have a lot of control over in computational fluid dynamics (CFD) programmes. It is this aspect that's among the most complicated parts of the design where wave patterns, wave heights and surfing will have a big effect. It's all very new and nobody has really been working in that area which is a possible reason why some of the data you might get from tank testing work could be less valid.”b8615bb7-4d91-4051-bb88-4a9da21c49ab“Having said that, establishing the foil configuration is the most important part the tank testing programme for these boats. The process would start with a CFD study to establish a family of boats that you think are correct and to make sure that you are not being pushed in the wrong direction.”3af66bf0-7e8b-41ac-b0ce-813eb7297903c5fbd18b-8bb8-4cba-bc1f-749ac73e3e33ImagePrimaryMovffdef25c-cbc1-432e-a275-7bce4c040586images/assets/juankouyoumdjian_heading.giftrueJuan Kouyoumdjianjuankouyoumdjian_heading.gif.gif1517980ab3b62-2f35-4593-bab6-5b64458a180aimages/assets/juankouyoumdjian_heading_thumb.giffalseJuan Kouyoumdjianjuankouyoumdjian_heading_thumb.gif{Width=179, Height=1.gif810010ContentImageJuan Kouyoumdjian Heading2005-11-07T16:05:23.22falsefalsefalsefalse5cbeb0a9-241a-4d62-99df-57fd6f757972"In other words, whatever weight you can save in the construction of the boat you can put into your keel bulb.”c06d0b91-30a5-4f0d-bd61-6a35f4f2c8e7Juan Kouyoumdjianfalsec2e12356-1e50-46d0-96da-0abd75a87594http://www.juanyachtdesign.com_blankThis link will open in a new browser windowFollow this link to visit the Juan Yacht Design web sitec125c3a0-a644-450f-b58d-bb698a3cbd14“To have two boats sailing for one team is clearly an advantage as, come the race, you are more likely to have one of your boats in the right place at the right time. But, having two boats is also an advantage during the build and testing stages.”73029d5b-c88f-4b82-a532-a18218d9c4dc“The research that we have carried out to date shows that this race is all about stability. Hydrodynamic stability generated from the hull and the foils of the boat. At the speeds that these boats will be sailing the foils develop a large amount of lift, which can be made to contribute to the righting moment.”a1e5b116-451a-4565-8b01-14055fd75a40“Stability gains can also be made from structural refinements. In other words, whatever weight you can save in the construction of the boat you can put into your keel bulb.”14f73672-4239-428a-88e9-6948486bba928e7488a9-2564-4365-88f9-a5a3813e926eImagePrimaryMov95f09620-ccb7-44e4-8bdd-e388df94f1daimages/assets/jimpugh_heading.giftrueJim Pughjimpugh_heading.gif.gif1580e5b20641-0350-47be-b431-a82411568b68images/assets/jimpugh_heading_thumb.giffalseJim Pughjimpugh_heading_thumb.gif{Width=80, Height=15.gif158010ContentImageJim Pugh Heading2005-11-07T16:05:23.22falsefalsefalsefalse52dee2c8-cf5a-41ad-b813-9680c7835981"The possibility of hitting something carries a certain amount of risk and of course you have to finish the race.”85b80323-cfec-4dff-9971-a6015c3ab550Jim Pughfalse3c5da1f1-b464-45fe-a113-9bacf18b70d2http://www.reichel-pugh.com_blankThis link will open in a new browser windowFollow this link to visit the Reichel Pugh web site4a008d55-a93e-4233-bb7b-b5583fcf4d68“I think there are a number of different configurations that might work.”072e9135-4120-4615-ac50-55739643672d“I wouldn't write off a forward rudder configuration completely and it's something that we are doing a pretty thorough study of right now, but the arrangement does not lend itself to this kind of a race. The nature of the course around the world and the amount of upwind work are important factors. The amount of downwind sailing is important as well, along with the ability to retract the foil. The possibility of hitting something carries a certain amount of risk and of course you have to finish the race.”856146d1-5f89-4690-9d87-1c82d0912ad1“The big gains for Canting Ballast Twin Foil (CBTF) technology are mainly upwind and for manoeuvrability. I think there are bigger gains than people think with CBTF and it will take a while for that to shake out.”d6713f30-814b-4bb7-9e2d-e98750928252b8737b0a-23d3-4f8b-911c-d783b54181b3ImagePrimaryMovf9add91a-af04-47fc-84e7-2c9fcb78ac88images/assets/stevemorris_heading.giftrueSteve Morrisstevemorris_heading.gif.gif15123be834aeb-32a9-467a-b660-127582c7235aimages/assets/stevemorris_heading_thumb.giffalseSteve Morrisstevemorris_heading_thumb.gif{Width=123, Height=1.gif1210010ContentImageSteve Morris Heading2005-11-07T16:05:23.22falsefalsefalsefalse9da67356-097c-4042-b01e-58d1ccab8c0b"There is also potential for some teams to provide exposure for their sponsor by producing a good inshore boat at some expense to offshore performance."87c66c85-77b3-41cb-b17c-6f3e05c35ac7Steve Morrisfalse1d26bb34-6708-431b-b2ba-5ee752234177HTTP://www.farrdesign.com_blankThis link will open in a new browser windowFollow this link to visit the Farr Design web site8b23b31a-b3dd-42b0-93b2-3d8bece7aa7d“I think this race is going to be interesting with everybody potentially coming out with different appendage concepts.”3ea3cc33-3bd2-4e86-9857-d0e0c6760561“This race has an added complexity, with 20 percent of the points available for the inshore racing. The style of appendages and hull, along with many other details you might have for offshore sailing, are not necessarily what you might opt for when racing around the cans. There is a whole drama there as to how you set up the boat and then compromise for either one of those situations. There is also potential for some teams to provide exposure for their sponsor by producing a good inshore boat at some expense to offshore performance. Others may just want to develop boats to concentrate on the offshore legs.”fe787512-c041-48ec-8b75-9d4bd7373b487d003ef3-40d6-43e8-bf11-482f53cef19bImagePrimaryMov865d99d6-9ffe-4824-9348-fb06fe109ee7images/assets/hugh_welbourne.giftrueHugh Welbournehugh_welbourne.gif.gif15151157e20f0-2ec6-4815-bcd7-f9452c5faa31images/assets/hugh_welbourne_thumb.giffalseHugh Welbournehugh_welbourne_thumb.gif{Width=151, Height=1.gif1010010ContentImageHugh Welbourne Heading 2 2005-11-07T16:05:23.22falsefalsefalsefalse5a5bbc9d-2ff2-4a9d-8c5f-830c29a93fe4”However, a short but well focused programme is well repaid in terms of quickly achieving a well balanced basic configuration..."f0854ae2-3fd2-40f0-a235-1f66488f7bb4Hugh Welbournefalseee3a0af6-1d0f-4e7a-9891-4f107991033f“Time on the water is going to be far more valuable in figuring out how best to  extract the performance, rather than endless trudging up and down the tank looking for relatively minor gains from, say, an extensive series study of beam/length ratios.”a8609547-dc2e-4952-a8d7-49d45ac5cff4”However, a short but well focused programme is well repaid in terms of quickly achieving a well balanced basic configuration of boat and foils that is then a good platform to work from in terms of rig and handling developments.”66ee1253-1317-4fde-bdd4-b25a196ab248“For the Volvo 70, I would want to look at two models, initially at opposite ends of the design spectrum and just a common appendage package, then run the normal velocity prediction programme (VPP) and other analyses on the two configurations and come up with a third hull which should then be pretty close to the final design direction.”0001-01-01T00:00:00Mon, 01 Jan 0001 00:00:00 UTC