SEARCH
WISH LIST
RESSELLERS
PRO
The statement of the problem is “I have a problem with my furler”, but in reality, the furler is not always the source of the problem… and rarely! This reminds me of the very relevant quote from the sales manager of an international large sailmaker: “It’s not all about providing the most beautiful sail in the world, you also need to provide a good anti-torsion, a good furler and the tips for use that go with it.”
So let’s start by recalling the components of the system:
To which I add to be more precise:
As in any good police investigation, each element must be considered suspicious, but common sense requires me to treat repeat offenders as a priority.
Although the furler is rarely incriminated, make sure before starting your investigation that the drum and swivel rotate by hand without excessive effort.
Let us now focus on the much touted repeat offenders. In theory, each rotation of the drum (operated by the furling line) would simultaneously rotate the swivel. This should be the case if we used a long metal bar instead of the anti-torsion line. In practice, we often see the drum doing 2 or 3 rotations (and even more) before driving the swivel (fixed on the head of the sail).
This brings us to a first set of tips:
And read it to the end. Don’t let its apparent length stop you. It is a quick and great read.
The most frequent case is to see a furler fixed on a simple rope that allows to bring the furler on the bowsprit. This is a frequent case to be avoided. It is mandatory to have a system that prevents the drum from turning on itself. Only the continuous line wheel must rotate and especially not the continuous line wheel protection system (casing).
If you have to install a furler on a bowsprit without having to do a balancing act, the only solution is the use of a 2 or 3-strand purchase (2:1 or 3:1). Do not use single rope (1:1).
If you do not put enough tension in the halyard, the anti-torsion will twist on itself. Feel free to add tension for the furling and unfurling phases. Sailboats from 45 to 50 feet and beyond are often equipped with 2:1 halyards. The interest is to be able to multiply the tension by 2 with the same effort. The downside is that it takes twice as long to hoist the sail and you end up with a nice plate of noodles on the deck once the sail is in position.
It seems obvious, but it is more common than we think. If the luff of the sail is too long, the swivel will come up against the halyard exit and it will be impossible to add more tension. Make sure the swivel is at a good distance from the mast and is not obstructed by another halyard.
The anti-torsion is the rope that connects the drum and the swivel. It is installed in the luff of the sail for Code 0 or staysails. It is outside for the use of asymmetric spinnaker.
Poor quality anti-torsion is clearly the 2nd cause of malfunction. If you have to make more than 3 or 4 drum rotations before moving the swivel, the problem is the anti-torsion.
In addition, most furler manufacturers offer thimbles that are perfectly adapted to their products, but they are not installed by sail lofts. The thimble is the aluminium or stainless steel part through which passes the anti-torsion cable that attaches to the furler. The use of these thimbles is a guarantee of sustainability. As much as possible, avoid basic stainless steel teardrop thimbles that will very quickly damage your furler.
Each thimble is designed to accept a maximum diameter of anti-torsion. My advice: Ask your sailmaker not to hesitate to use the largest diameter possible, especially if it is a Code 0, a staysail or an asymmetric spinnaker. The maximum diameter is often specified on the technical documentation.
For sailboats over 50 feet and for luffs over 20 m long, I recommend that you seriously consider using anti-torsion cables instead of anti-torsion lines. These are custom-made technical textile cables with much higher anti-torsion properties than conventional line. You will find a non-exhaustive list of brands in this article dedicated to anti-torsions.
It can sometimes be tempting to choose a slightly (or really) undersized furler. This also means that it will be impossible to install the correct anti-torsion diameter. In any case, always discuss the quality of anti-torsion with your sailmaker. He will be able to answer your questions and give you the best advice.
Last tip: The older your anti-torsion is, the more important it is to add tension.
The furling line or working furling line is a more important accessory than it seems.
and follow as much as possible the recommendations of the manufacturers. I have already mentioned the problem of the anti-torsion dimension, but you can also add the potential problem of a too small drum diameter. The wider the continuous line wheel, the easier it will be to use (more torque). Several manufacturers now offer larger versions and this makes the difference once on board.
If you have ever used a spinnaker sock, you are now aware that there are certain rules to follow if you want to “choke” your spinnaker with elegance. No matter how sophisticated your furler and sail are, you need to find the best way to do it on your own.
A few leads though:
The configuration often chosen is a well-tensioned halyard, a slightly unvented sail and not too much tension in the sheet, but I assure you that you will not waste your time making several attempts.
You will be surprised to find a few good tips in there!
In the Internet-everywhere era, it is tempting to make your choice on your own. However, even with my excellent advice, I will never stop advising you to talk to people with experience.
Please also read: KarverPedia – The importance of anti-torsion line or cable
Article written byTanguy de Larminat. Tanguy is the managing director of Karver. He is also a specialist in cruising multihulls. He is a sailing instructor and professional skipper. He has several transatlantic to his credit and has managed Catana’s customer service (deliveries & after-sales service) for 4 years as well as a refit shipyard for 12 years in the south of France.
If you have any comment, please email him.
Translation : adGallica (carole@adgallica.fr)
Crédit : HH Catamarans (HH66)
Les prix et les disponibilités des produits varient en fonction de l’adresse de livraison.
Veuillez sélectionner votre pays afin d’ajuster ces informations :
Prices and availability of products vary depending on the delivery address.
Please select your country to adjust this information:
: 1. Article one: Contract formation 1.1 Conflict between general terms and conditions of sale and general terms and conditions of purchase: The present general conditions of sale define the terms of execution and the conditions of sale between KARVER and its customers. To place an order implies a full and complete adhesion to the general conditions of sale described below. Sales are always made by mutual agreement between the parties as set forth below. These provisions cannot be modified by contrary stipulations contained in the general conditions of purchase of the customer or any other document without written agreement of the parts. 1.2. Consent: 1.2.1. Offer: Karver products’ offers accomplished by quotations can only be valid if they have been accepted in the indicated delay. All offer made by Karver will only become irrevocable after written confirmation by Karver to the client’s purchase order. 1.2.2. Acceptance: this can be done according to the forms and uses in force in commercial matters and in particular by mail, fax, telephone, internet or e-mail. 1.3. Cancellation: any request for cancellation of an order for any reason whatsoever may be examined only by payment of a cancellation indemnity set at fifteen percent (15%) of the net price excluding tax of the order. For custom orders, deposits will not be refunded. 2. Article two: Sold goods KARVER reserves the right to apply at any time any modification that it deems useful to its products without prior notice 3. Article three: Settlement terms 3.1. Terms of payment: The invoices are payable at the headquarters of KARVER Honfleur by credit card or wire transfer. 3.2. Payment period: 3.2.1. Principle of the will of the parties: The payment periods can be set freely by the parties but cannot exceed 60 days. 3.2.2. 30-day payment: The payment of KARVER products by customers who already have an account with KARVER is made on the thirtieth day following the date of receipt of the goods (Article L.144-6 of the French Commercial Code). 3.2.3. Special deadlines: Payment for Karver products ordered by new customers or customers who do not have an account with KARVER will be made in full payment before shipping. 3.3. Late payment penalties: 3.3.1. Methods of calculation: The sums not paid at the due date will result in the payment of monthly indemnities equal to 5 times the legal interest rate on the amount of the sum due, the payment of the totality of the remaining will stay due and deliveries will be suspended. In addition, a lump sum compensation for recovery costs of 40 euros is applied in accordance with Decree No. 2012-1115 of 2 October 2012 for any late payment over 10 days. 3.3.2. Late payment penalties are applied if the sums due are paid after the payment date shown on the invoice. Penalties are due without any reminder being necessary. They run automatically on the day following the date of payment on the invoice, or failing this, on the thirty-first day following the date of receipt of the goods. 3.4. Discount for upfront payments: There would be no additional discount for payment granted before shipping. 3.5. In the event of cessation of payment, bankruptcy filing, settlement or declaratory judgment against the client, the latter shall notify KARVER without delay so that an identification and an inventory of Karver products sold but not yet fully paid and cashed can be established and that the ownership clause can potentially be established. 3.6. In case of unpaid of all or part of a term, KARVER, without losing any of its rights may require the return of all products corresponding to orders not yet paid. 3.7. Karver may claim in the hands of the sub-purchasers the price or part of the price of products sold by Karver to the customer which have not been fully paid or cashed. In this case the customer agrees to provide any relevant information regarding to the sub-purchasers. 4. Article four: Price schedules, discounts and rebates 4.1. Prices: prices are “ex works”, packaging included, at the rate in force at the time of the order. Karver reserves the right to modify its rates according to currency fluctuations, raw materials or cost price. 5. Article five: Orders 5.1. The general conditions of sale apply to all sales, by signing the order, the customer accepts unconditionally the conditions of sale and waives any application of its General Conditions of Purchase. 5.2. Our orders are final from the moment they are confirmed in writing. Any modification can be taken into account only if it arrives in writing before the shipment of the products. In case of order modification our deadlines can be postponed. Similarly, if our buyer does not accept the change, the down payments will not be returned. 5.3. In case of late payment KARVER may suspend all outstanding orders without prejudice or any other actions. 6. Article six: Jurisdiction For all disputes relating to sales made by Karver and the application or interpretation of these Terms and Conditions of Sale, only the Commercial Court of Lisieux (France, 14) will be competent. 7. Article seven: Force Majeure KARVER is not liable in the event of fire, flood, interruption of supply of energy, raw materials or spare parts, as well as total or partial strikes of any kind impeding the smooth running of the company, such as transport strikes, postal services … The occurrence of a case of force majeure has the effect of suspending the execution of the contractual obligations of KARVER. 8. Article eight: OWNERSHIP RESERVE CLAUSE : 8.1. KARVER expressly reserves the ownership of the KARVER products delivered and designated in the sales contract until full payment of their price in principal and interest. 8.2. The goods will remain the property of KARVER until full payment of their price, but the buyer is responsible for them as soon as they are physically delivered, the transfer of possession entails the transfer of the risks as well. Signing this document, the buyer undertakes to subscribe an insurance contract guaranteeing the risk of loss, theft or destruction of the goods. 8.3. The transfer to the buyer, the disadvantages, the risks of loss or the deterioration of the products are subject to the retention of title. In case of application of the reserve of the property after the partial payment, the installments paid will be our property in counterpart of the depreciation undergone by the products. 9. Article nine: Delivery, receipt, returns 9.1. Receipt of products 9.1.1. KARVER deliveries are made by private carriers mandated by Karver at the expense of our customers. In the case of a carrier mandated by our customer, the goods will be transported at the expense and risk of it. 9.1.2. In case of apparent defect or failure the customer will have to make findings and reservations with his postal services on the transport receipt. 9.1.3. Deliveries can only be made if KARVER’s clients are up to date with their obligations. 9.1.4. Lateness cannot entail a cancellation of an order or any claim for damages. 9.1.5. All claims regarding apparent defective and non-conformity of products must be received within 8 days of delivery of the products. The client must then provide all the justifications on the reality of the defect and leave to KARVER any possibility to note the defect itself and to remedy it. 9.2. Delivery times Delivery times are given for information only and without guarantee. A delay does not entitle the buyer to cancel the sale, to refuse the goods or to receive damages. 9.3. Returns No return of Karver products can be made by the customer without the express written consent of KARVER. Returning costs will be borne by KARVER only in the event that an apparent defect is actually noted by the latter. Unless prior authorization, only the carrier chosen by KARVER is authorized to return the products concerned. 10. Article ten: The lack of conformity of the goods 10.1. The goods travel at the risk of the customer to whom it belongs to check the good condition at the time of delivery. This verification must relate to the quality, quantities and references of the goods and their conformity with the order. No claim will be taken into account after a period of fifteen days from the day of delivery. 10.2. Goods with a recognized defect of conformity, reported within 8 days, is subject to replacement or restoration, to the exclusion of any compensation, for any reason whatsoever. 11. Article eleven: Warranty Karver products are warranted for pre-sale defects making our material unsuitable for the intended use or which reduce such use so much that the buyer would not have acquired it or will not would have given a lower price if he had known them, in accordance with the provisions of articles 1641 and following of the civil code. The customer can only benefit from the guarantee if he notifies KARVER by registered letter as soon as possible. 11.1. Contractual Warranty: Karver products are warranted against defects in material or confection for a period of one (1) year from the date of delivery to the Professional Customers and two (2) years to the Private Customers from the date of sale. Under this warranty, the only obligation incumbent upon KARVER will be the free replacement or repair of the product or item found to be defective by its services to the exclusion of any other indemnity or damage and interest, the possible shipping costs being the responsibility of the customer. Defects and deteriorations caused by natural wear and tear, by an external event (product not adapted to real loads, assembly not conforming to the technical instructions of KARVER, defective maintenance, abnormal use or in competition …) or by a modification of the product not specified or specified by KARVER are excluded from the warranty. In the same way the guarantee will not play for the visible defects. 11.2. Legal guarantee: Under the guarantee of hidden defects, KARVER will only have to replace without charge the defective products excluding the repair of any other damage, shipping costs will be paid by the customer. 12. Article twelve: Use of the products Our buyers declare to have all the technical competences, to have taken note of our documentation to have been perfectly informed on the use, the handling, the dangers of the products and in case of doubts to appeal to one of our technicians. No other warranty than those contained in our documentation will be able to be declared to the customers. 13. Article thirteen: Custom, customized products: For professionals, our custom products are designed with their technical teams and meet the specific instructions that are communicated to them by them. Therefore, they are excluded from any warranty and their sale is made at the risk of the buyer who cannot, in particular, invoke a hidden defect. 14. Article fourteen : Spare parts: The duration of availability of our spare parts is at least 3 years from the date of purchase by the private customer. This indication is included in our user manuals.
Register our newsletter :