Please select your home edition
Edition
Hyde Sails 2022 One Design LEADERBOARD

Global Solo Challenge - Racing ropes: making the right choice for each application

by Global Solo Challenge 6 Nov 2021 04:21 PDT
Racing Ropes © Global Solo Challenge

When we enter in the territory of racing ropes, things get even more complicated.

The ropes for a sailboat seem at first glance all the same except for the colour. Nothing could be that far from reality. Some ropes have truly remarkable technical properties. Others are not quite as noble and we need to understand the differences.

Ropes, with some exceptions, are all made up of a core and a cover. The basic lines for cruising boats are often made with a polyester core and cover. Racing ropes mostly have a Dyneema ® or UHMwPE or HMPE core - which is to say the same thing. The cover, on the other hand, is usually a mix of two or more fibres where polyester is used to create the range of colours. The "noble" fibres used in racing lines usually have a limited range of colours.

Racing ropes: the world of noble fibres

Noble fibres distinguish themselves from common polyester for characteristics such as resistance, stretch and melting temperature. In fact, a polyester lines can be cut with a hot knife and finished with a lighter. For many of the high performance fibres this would not be possible. The melting point of Vectran™ is 350 degreesC, that of Nomex® is 350 degreesC - they are not even yet aramids. For aramids such as Technora®, Kevlar®, Twaron® we reach 500 degreesC for Zylon® (PBO) at 650 degreesC.

Among the high performance fibres everyone knows Dyneema®, this is just a registered trademark of the DSM company. Saying Dyneema is like saying Sellotape (a brand) instead of sticky tape. Dyneema is in fact composed of fibers of UHMwPE (ultra-high molecular weight polyethylene) or HMPE produced by Dupont. UHMwPE is 15 times stronger than steel and 40% stronger than many aramids of the same weight. This makes it an extraordinary fibre for making racing ropes.

HMPE also has extraordinary properties in terms of resistance to abrasion and chemicals. However, its melting point is just 150 degrees C, even lower than polyester which melts at 260 degrees C. For this reason, most racing lines have a Dyneema core (UHMwPE / HMPE) and a mixed fibres cover. This is to remedy the fact that in many applications, such as spinnaker sheets, a low melting point would be a problem.

Continue reading the full article here...

Related Articles

Novice to round-the-world sailor
How long does it take to go from one to the other? One of the pioneers in the World of Solo Circumnavigation is Sir Charles (Chay) Blyth. Up until 1968, Blyth's only seafaring experience was as a long-distance rower when he, along with John Ridgway, rowed the Atlantic Ocean. Posted on 6 Aug
Unconditional mutual support among participants
All extreme sports (like the Global Solo Challenge) share a similarity When it comes offhore yacht racing, competition itself is a challenge that can be affected by many factors, personal or external. Posted on 2 Aug
What are the characteristics of the trade winds?
Knowledge of global weather patterns matters in the Global Solo Challenge With the boats and skippers immersed in the South Atlantic having left the equator behind and with Fernando de Noronha at the bow, there will be many miles ahead to sail with the South East trade winds, with time to think - on boat, at sea, in themselves. Posted on 29 Jul
Global Solo Challenge welcomes 51st entry
David Linger has been in touch with the organisers for some time David Linger from Seattle is the 4th American to sign up for the Global Solo Challenge, the 11th Class40/Open40 in the fleet, which is proving to be a popular choice of boat in the event. Posted on 26 Jul
Global Solo Challenge welcomes 50th entry
German Philipp Hympendahl is a photographer and filmmaker Philipp is the first German entry in the Global Solo Challenge, bringing the total number of nationalities represented by skippers to 15. Posted on 21 Jul
Around the world without fossil fuels?
Global Solo Challenge entrants adopt eco-friendly approach to their adventure The Global Solo Challenge (GSC) and its founder Marco Nannini are keen to provide a fantastic sporting challenge, which will attract Worldwide interest. Posted on 19 Jul
Can rehabilitation come from the sea?
Simone Camba, an entrant in the Global Solo Challenge, is a policeman from Cagliari Simone Camba, an entrant in the Global Solo Challenge, is a policeman from Cagliari and a passionate sailor who in 2013 founded New Sardiniasail, an amateur sports association with social objectives, which earned him the "Sailor of the Year 2021" title. Posted on 16 Jul
Which boats were designed by Niels Jeppesen?
X-55 of Belgian Dirk Gunst and the X-37 of Frenchman Louis Robein set for Global Solo Challenge To date, there are two boats designed by Danish designer and co-founder of X-Yachts Niels Jeppesen entered into the Global Solo Challenge (GSC), the X-55 of Belgian Dirk Gunst and the X-37 of Frenchman Louis Robein. Posted on 12 Jul
What do you have to do when crossing the equator?
Crossing the equator per se is not a difficult task Crossing the equator per se is not a difficult task, stable trade winds make the moment joyful. Tradition has it that an alcoholic drink is offered to Neptune to secure a safe journey ahead. Posted on 9 Jul
Fatigue in solo offshore sailing?
Fatigue management, cognitive performance and emotional strains in solo offshore racing There is a fundamentally different element in solo offshore sailboat racing compared to 'just' sailing alone across the ocean; fatigue management. Posted on 29 Jun
Coast Guard Foundation FOOTER 1Upffront 2020 Foredeck Club SW FOOTERZhik 2022 Choice of Champions FOOTER