sail-world.com
 
 
News Home Video Gallery Photo Gallery
Sail-World.com : Revolutionary mast has 3D woven carbon mast track
Revolutionary mast has 3D woven carbon mast track

'A new revolutionary mast for Safran'    Francois Van Malleghem

Safran, high technology international group and a leading equipment provider in the Aerospace, Defense and Security fields, is also a great sponsor of racing yachts where they are able to test new technology.

Their latest experiment is in the manufacture of a mast with a 3D woven carbon mast track, giving their eponymous yacht much less weight to carry aloft, making her sturdier yet faster. We can't wait for this to trickle down to the world of the cruising sailor - as it inevitably must, in time.


While the group specializes in the design, manufacturing, and marketing of equipment and systems of high technology mechanical and electronic equipment, this is completely new in the world of sailing. Apparently the weight savings and improvements in terms of performance and reliability are 'huge'.

'This new mast is the result of a lot of different people working together,' explained Guillaume Verdier, the designer and person in charge of the construction of this new 28 metre long spar. 'The real innovation is on its rear side, with a 3D woven carbon track, formed in the same way as Jacquard cloth is produced and which will withstand the strains, unlike a traditional track,' summed up the designer. 'That means we have been able to make weight savings high up and offer improved reliability thanks to this process and to a completely new way of looking at the attachment points.

'This innovative work from the team was only possible thanks to the resources within the Safran Group and Hervé Devaux’s HDS calculation team, who went over my static calculations again and again. What with the calculations and designs, together with the architects that work alongside me, Romaric Neyhousser and Hervé Penfornis, we have spent a lot of time over several months to come up with this innovation.'

The overall philosophy of this new mast was as follows: it had to be lighter, offer better performance, be more reliable and with an overall cost not exceeding 20% more than a classic mast.

Guillaume Verdier explains: 'We didn’t begin with a blank sheet of paper, as the initial choice was to keep the basic arrangement of the first two masts, in other words, it rests on the deck and has three layers of spreaders. We didn’t want to take any risks by completely changing the concept, with for example a mast with two layers of spreaders or a wing-mast, which are both more flexible and subject to dynamic forces.

'We gradually made headway working together: I was involved with the conception and design, Hervé Devaux at HDS checked over my static calculations, Bruno Dambrine at Safran offered us his experience of the 3D woven technology and then, there was also Snecma and Safran Engineering Services (subsidiaries of the Safran Group) working on dynamic calculations.

'Thanks to digital modelling and the means available at Safran, we were able to carry out simulations at each stage of the job concerning the behaviour of the boat and mast, for example, seeing what happens, when she slams into a wave. Thanks to that, we were able to identify strains in certain places that we couldn’t see simply by using static calculations.'

These dynamic calculations, used by Safran in particular for their crash tests, are a new concept in ocean sailing, and enabled the team to advance towards this highly innovative mast. 'We also included the data we already had thanks to the sensors measuring acceleration on board the boat, when she had her previous masts. At each stage, we knew if we were on the right track or if we had things to correct.'

The actual weight savings are obviously confidential. But they are 'huge', according to Jean-Marie de la Porte, Safran’s project manager.

If we are looking at a boat, we need to consider everything, and it is no surprise to anyone that saving weight high up, is something everyone looks for, 'as when you save one unit on top, you can take three times that from the keel bulb, for example,' explained Guillaume Verdier. We end up with a boat that is stiffer, which cuts through the waves more easily, which pitches less, and so is faster.

Returning to the 3D woven technology, this is a process developed in the Safran Group, which involves weaving together carbon threads using the same principle as on a traditional loom.

This technology used in the design of parts for the aircraft industry means that it is possible to obtain mechanical specifications, which are much higher than using traditional carbon.

'The design of this new mast involved calling upon the services of experts within the Safran Group as well as from outside, and this was an extremely enjoyable experience,' stated Jean-Marie de la Porte.

To see the video of the new mast click here.

A new revolutionary mast for Safran -  Francois Van Malleghem   Click Here to view large photo

Safran Sailing Team website


by Soazig Guého/Sail-World Cruising

  

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

http://www.sail-world.com/index.cfm?nid=97181

2:05 AM Mon 14 May 2012GMT


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







News - USA and the World

Rolex China Sea Race 2014 - nip and tuck for IRC honours by RHKYC and Guy Nowell, Sail-World Asia, Hong Kong


America's Cup Book Review: Winging It - Oracle Team USA's comeback *Feature by Richard Gladwell Sail-World.com/nz,


























HUD Vision: An interview with Afterguard Marine’s Alex Moret *Feature by David Schmidt, Sail-World USA Editor, Seattle














America's Cup: Expected de Ridder penalty should be reduced *Feature by Richard Gladwell/Sail-World.com/nz, Auckland, NZ
















Congressional Cup - Victory for Taylor Canfield and crew by Rich Roberts (As Amended by ISAF),




2014 Halifax – Saint-Pierre Ocean Race by Patricia Nelder, Nova Scotia




WWA Pro Card Qualifier - Pro Cards earned at Freedom Wake Park
Christmas Caribbean Rally - Top class sailors to compete
Earth Day boater tips
Anna Tunnicliffe - from CrossFit to Extreme 40's
Charleston Race Week - Photos by Chris Howell
Image Gallery: Stratis SL33 flies on the Waitemata
Audi Melges 20- Sperry Topsider Charleston Race Week - Light final day
Clipper Round the World Yacht Race - PSP Logistics prepares for USA
ISAF Sailing World Cup Hyères - Crème of the crop to compete
Congressional Cup: Luna Rossa makes podium in first event
Int 14 World Championships 2015 launch new event website
International Optimist Regatta Clinic and Team Race - Register now!
Congressional Cup: World top rankers finish that way in Long Beach
Sperry Top-Sider Charleston Race Week Day 3 finale
America's Cup: Gino Morrelli outlines the new AC62 design
Doyle Sails New Zealand signs Andrew Brown as One Design Manager
America's Cup: Dean Barker's Blog - A sail with the Duke and Duchess *Feature
29er World Youth Sailing Week Easter regatta - Day 1 and 2 overall
C Thomas Clagett Jr Memorial Clinic/Regatta - Entries start to roll in
50th Congressional Cup: See the delayed coverage and media conferences
Clipper Race 10 Day 27: Closing stages - Qingdao to San Francisco   
Canfield, Williams, Bruni, Swinton in Congressional Cup final four   
Sperry Top-Sider Charleston Race Week - Day 2   
Audi Melges 20 Charleston Race Week - Perfect conditions in Charleston   
Oyster Regatta Antigua - Full on ocean conditions for day 3   
PWA World Tour - A taste of things to come at La Torche + Video   
Women's International Match Racing Series kicks off in June   
Melges 32 Audi Tron Sailing Series - Action shots by Max Ranchi   
Clipper Round the World Yacht Race - Frustrating conditions   
Man rescued after falling overboard in Pacific taken to hospital   
Sperry Top-Sider Charleston Race Week 2014 - Youth leading Melges 20   
Congressional Cup - Canfield leads toward Congressional Cup sailoffs   
Sperry Top-Sider Charleston Race Week 2014 - Perfection for Day 1   
America's Cup: Coutts claims ISAF Jury on a crusade, backs Kiwi report *Feature   
Clipper Round the World Yacht Race - Will light winds hamper progress?   
Les Voiles de St. Barth - Preparing to rock Saint Barthélemy waters   
Clipper Round the World Race - OneDLL and Qingdao now in San Francisco   
America's Cup: Emirates Team NZ up against funding hurdle for year *Feature   
Melges 32 Sailing Series Napoli - Day 1 images by Stefano Gattini   
50th Congressional Cup: View the Live racing here   


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.
X6XL VIR US