sail-world.com
 
 
News Home Cruising Photo Gallery Video Gallery
Sail-World.com : Vestas Sailrocket 2 project returns to Namibia
Vestas Sailrocket 2 project returns to Namibia

'Vestas Sailrocket 2'    Helena Darvelid/VestasSailrocket    Click Here to view large photo

This September the Vestas Sailrocket 2 project will be returning to the waters of Walvis Bay in Namibia with a new hydrofoil package which they hope will bring them an outright world speed sailing record.

The record currently stands at 55.65 knots (64 mph) and is held by American Kite Surfer Rob Douglas. Vestas Sailrocket 2 was built in the Vestas R+D facilities on the Isle of Wight and launched in the Medina River in March 2011. The project then relocated to Namibia where ideal conditions occur on a regular basis.

From its launch in the UK, Vestas Sailrocket 2 rapidly progressed up the speed sailing ladder and after only 23 runs, hit speeds over 50 knots down the magical mile long course at Walvis Bay's 'Speed-spot'. The team then made continual improvements to the boat and tried a number of underwater foil configurations but seemed to be hitting a 'glass ceiling' in performance in the low 50 knot speed range regardless of which foil options they tried or how much wind they sailed in.

Chris Hornzee-Jones - Aerotrope/VSR2 designer. Once you start going through the water over 50 knots you are going to start encountering a phenomenon called cavitation. This can be likened to the hydrodynamic equivalent of the 'Sound Barrier'. The property of the water changes as it turns from liquid to vapour on certain parts of the foil. This requires a very different approach to how you design them. The problem gets even more complicated as air from the surface also tries to get sucked down onto the foil and cause it to lose grip. This mixture of air, vapour and very high-speed water is all very dynamic and extremely hard to model by computer or even in high-speed flow tanks. Most projects to date have simply pushed conventional foil theory to the limits and that's why speed sailing is stuck at the current speeds in the low 50's. Vestas Sailrocket 2 was designed from the outset to be a breakthrough boat. It is designed to be an ideal testing platform for trialling new foil concepts which will allow us to break through this 'glass ceiling' and perform at speeds well over 60 knots.

Paul Larsen - Australian project manager/pilot of VSR2. This is the second craft we have developed for this record. We saw the potential of the concept revealed with our first boat but this version is aiming to use that potential to knock down some of sailings biggest physical barriers. If we can do that then the world records will come with the territory. From my perspective in the cockpit, this version of the boat is a delight to sail. It is much less traumatic than the first boat. VSR2 is just ambling down the course at 50 knots in a very stable manner. Hopefully these new foils we have designed will allow her to really show her potential. I'm sure she won't feel so docile over 60 knots. I think she's patiently waiting for us to gain the understanding to release her from all the drag and give her free rein.'

Vestas Sailrocket 2 -  Helena Darvelid/VestasSailrocket   Click Here to view large photo

Vestas Sailrocket 2 is indeed a radical craft. It looks perhaps more like a plane than a boat because a lot of attention has been focused on the aerodynamic efficiency and stability of the craft however, she still relies very much on the hydrodynamics to allow her to carve across the wind. It is based on a concept where all the overturning forces typically associated with sailing craft are removed. This allows the boat to use the wind created by its own speed to generate a lot of its ultimate power without actually getting overpowered. Whilst VSR2 might actually be sailing in only 25 knots of real wind, at full speed the lightweight, carbon fibre boat and its rigid wing sail feels like it is sailing in over 60 knots of wind and yet doesn't require traditional systems of weights and levers to remain stable.

Malcolm Barnsley - Vestas test engineer/VSR2 design team. We are delighted with the way the boat has developed to date. It has been pushed very hard by the sailing team and has shown time and again that it is a great platform for taking new foil designs to their limit in the 'real' world. We have learnt an immense amount already with this boat. Even though our first version of very high speed foils was shown not to be the answer, they also showed us certain aspects that were right. With the new foils we have incorporated these aspects and hopefully used our understanding to design out the parts that were holding us back. We are heading into new territory here. It's a dark alley and of course it is hard to be certain of what lies ahead until you illuminate it with your own knowledge. We have followed a path that seems logical and have chosen what we also hope is the safer, reliable option rather than the extreme one. The potential of this boat is enormous but if these foils allow us just to reveal a portion of that potential... then world records should fall'.

The new foil is currently being manufactured in Bristol. Team members will shortly head down to Namibia where Vestas Sailrocket 2 is currently located. They will assemble the boat and base in preparation for the arrival of the rest of the team and the new foil. The focus will be on developing the new foil and some of its 'add-ons' to see if it truly is the missing piece of the puzzle that will allow the team to realise their dream. The team is still looking for answers and they know that nothing is certain until proven beyond doubt in the real world. If the new foils do what they are supposed to do, a World record attempt will be booked with the WSSRC (governing body) in the October-December period this year.

Vestas Sailrocket website


by Paul Larsen

  

Click on the FB Like link to post this story to your FB wall

http://www.sail-world.com/index.cfm?nid=102007

3:09 PM Thu 13 Sep 2012GMT


Click here for printer friendly version
Click here to send us feedback or comments about this story.







News - USA and the World





Monaco's Miani wins Melges 20 2014 Audi-Tron Sailing Series by International Audi Melges 20 Class Association,




























































America's Cup: Challenger calls Competitor Meeting ahead of deadline *Feature by Richard Gladwell Sail-World.com/nz,


2014 Sarasota Grand Prix - 77 Lucas Oil SilverHook got second place
Half Ton Classics Cup - Swuzzlebubble victorious with a day to spare
U.S. Women’s Match Racing Championship - Top teams to battle
Audi-Tron Sailing Series - Melges 20 fleet ready for action
Volvo Cork Week - Front runners emerge on day 3
Nacra 17 Europeans - Big winds halt racing in La Grande Motte
49er and 49erFX Europeans - Tough end to qualifying phase + Video
New Classification Code for consultation released by the IPC
Clipper Round The World Yacht Race fleet heads for London
Volvo Ocean Race - Abu Dhabi and Team Alvimedi head for England
Rio 2016 in the sights of ISAF Youth Worlds 420 sailors
Exciting new International Audi Melges 20 Ranking System now in play
FISU World University Match Racing Championships - GBR women win gold
2014 Seiko 49er and 49erFX European Championship - Day 2
Volvo Ocean Race teams Abu Dhabi and Alvimedica leave Newport, RI
Half Ton Classics Cup - Champagne conditions on Day 2 + Video
ABYC Fourth of July Regatta - Snipes join the action
Volvo Cork Week - Three bullets for ballistic catapult
Nacra 17 Europeans - Besson and Riou lead the overall standings
Formula 16 World Championship - Aussies claim title in Newport
Vestas Sailrocket 3 - The journey beckons   
Clipper Round the World - London to provide emotional heroes welcome   
ISAF Youth Worlds - Italians to lead RS:X fleet in Tavira   
Vestas Sailrocket 3 - Over the Horizon   
Foiling Week - Italian Moth Championship - Final results   
NYYC Race Week - Yachting history on display   
Rescued sailors reach shore after dramatic ocean rescue   
Half Ton Classics Cup: Swuzzlebubble out front on Day 1 + Video   
New York Yacht Club Race Week - Yachting history on display   
Volvo Cork Week - Thrilling conditions welcome international fleet   
Nacra 17 Europeans: Success for Italy's Bissaro and Sicouri   
America's Cup: 2017 venue short-list reduced to two Cities   
Formula Windsurfing Youth and Master Worlds overall   
49er and 49erFX Europeans: Pitfalls aplenty on day 1 + Video   
ISAF Youth Worlds - Laser Radial sailors look to join list of legends   
Coville soon to chase solo circumnavigation record in giant trimaran   
Fierce competition at the Meanline Fins Slalom Challenge   
Volvo Ocean Race - Team Brunel opt for experienced winner   
Bakewell-White supermaxi designed to take Transpac's Barn Door Trophy *Feature   
Crew rescued by navy patrol from J/111 racer after Mayday in storm   


For this week's complete news stories select    Last 7 Days
   Search All News
For last month's complete news stories select    Last 30 Days
   Archive News







Sail-World.com  


















Switch Default Region to:

Social Media

Asia

Australia

Canada

Europe

New Zealand

United Kingdom


http://www.sail-world.com/event_images/image/Twitter_logo_small.png http://www.sail-world.com/event_images/image/FaceBook-icon.png  http://www.sail-world.com/event_images/image/RSS-Icon.png

United States

Cruising Northern

Cruising Southern

MarineBusiness World

PowerBoat World

FishingBoating World

 

Contact

Commercial

News

Search

Contact Us

Advertisers Information

Submit news/events

Search Stories/Text

Feedback

Advertisers Directory

Newsletter Archive

Photo Gallery

 

Banner Advertising Details

Newsletter Subscribe

Video Gallery

Policies

 

 

 

Privacy Policy

 

 


Cookie Policy

 

 



This site and its contents are © Copyright TetraMedia and/or the original author, photographer etc. All Rights Reserved.  Photographs are copyright by law.  If you wish to use or buy a photograph contact the photographer directly.
XLXL NEW US
LocalAds   DE  ES  FR  IT