sail-world.com
 
 
News Home Cruising Photo Gallery Video 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

America's Cup: Rod Davis - Time for a change after ten years with team *Feature by Richard Gladwell/Sail-World.com/nz,




















Maxi yacht rendezvous this September in Sardinia by International Maxi Association,




















America's Cup: Team NZ wish Davis well with new team *Feature by Richard Gladwell, Sail-world.com/nz,


Fisher's View: Sailing perfection at Hamilton Island- Day 3 by Bob Fisher, Hamilton Island, Queensland




2014 Formula Kite World Championship Day 1 by Markus Schwendtner, Istanbul
















Volvo Ocean Race 2014-15 CEO Knut Frostad talks (Part I) *Feature by Rob Kothe and the Sail-World team,




2014 CORK Olympic Classes Regatta - Day 3
2014 Nanjing Youth Olympic Games - Day 2
2014 IFDS World Championship: Opening Ceremony images
Opera House Cup - Images by Ingrid Abery
Teams descend upon Cowes for inaugural J/111 World Championships
Hamilton Island Race Week: Everywhere there's smiley people
IFDS World Championships - US Paralympic hopefuls ready for racing
Sopot Match Race - Poland's Tour debut deemed a triumph
Vineyard Race celebrates 80th running of the East Coast classic
Nanjing Youth Olympic Games: Young sailors begin racing on Lake Jinniu
AWT Quatro Desert Showdown - Victory for Morgan Noireaux
Sevenstar Round Britain and Ireland Race - Day 8: Test of endurance
Bart's Bash: Over 2300 entered from 588 yacht clubs - Join here
Halifax ready to welcome the world at 2014 IFDS World Championships
RC44 World Championship title to Bronenosec + Video
Audi Hamilton Island Race Week: Day 2 Images by Crosbie Lorimer
IFDS Worlds - Gary Jobson to attend opening ceremonies
Melges 32 U.S. National Championship - Dalton DeVos crowned champion
2014 Nanjing Youth Olympic Games trailer
2014 Chicago Grand Slam - Canfield wins
Round Britain and Ireland Race - Varuna takes overall lead   
Audi Hamilton Island Race Week; Crosbie Lorimer Day 1 Images   
Fisher's View: Hamilton Island Race Week - Day 1 - Stayin' Alive   
CORK Olympic Classes Regatta 2014 - Day one   
Youth Olympics: practice over, athletes welcomed, time for YOG sailing   
Round Britain and Ireland Race - Record for Artemis-Team Endeavour   
2014 Melges 32 U.S. National Championship - Day 2   
Sevenstar Round Britain and Ireland: Artemis sets fourth course record   
2014 Chicago Grand Slam - Top seeds survive as semi-finalists   
420 and 470 Junior Europeans - Breezy day 4 in Gdynia   
RC44 World Championship - Dramatic improvement for Artemis Racing   
18' Skiff International Regatta - Action begins August 25th   
Round Britain and Ireland Race - Challenging conditions arise   
Round Britain and Ireland Race - Record-breaking monohull victory   
Round Britain and Ireland Race - Dongfeng Race Team finishes third   
RC44 Marstrand World Championship - Bronenosec the star performer   
Bahamian Olympic Sailor to carry flag in honour of Sir Durward Knowles   
Sevenstar Round Britain and Ireland Race: Records continue to tumble   
Sevenstar Round Britain and Ireland Race: Course Record for Team SCA   
Round Britain and Ireland Race - Team Alvimedica completes the race   


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 VIR US
LocalAds   DE  ES  FR  IT