There is a Harken double block that looks like it may be a suitable replacement, and Rig-Rite sells the original. Tweet. On one boat I did sails for that had single line reefing, we used blocks at the reefing rings to lower the friction enormously. Just wondering if those would be strong enough for the single line reefing lines at the sail? Brierley Hose & Handling - Hose Supplies. Wichard Inc handles the marketing and distribution for North America for Wichard and Profurl, well known brands in A. At the moment my system incorporates four movements if you dis-regard vang and topping lift. Designed for in boom reefing systems, featuring soft rubber type bodies to prevent damage and reduce noise within the boom. Step 3 Installing Tack Block General Instructions Detailed Instructions A. the end cap (and later re-rivet) to get at the blocks inside. When the reef is close to its correct position pull the halyard through the clutch until the reef mark is visible on the winch side. Changing the reef line blocks 1. The boom extrusions are relatively deep in relation to their width, allowing a lighter extrusion with high resistance to vertical bending. Single line reefs down tack and clew points. Blocks on single line reefing have nothing to do with the design concept on one line doing both. Flip-Flop Small Boat. Carbo Air Blocks. Given that, the procedure is: 1- Ease the main so it is completely luffing. Remove & replace the frozen reef line sheave at the aft cap end. Barton Spare slider for Slab reefing kit for craft up to 8.5m. Has anybody had experience of the Easy … We sail a Beneteau 321 which has standard reefing for the main sail. While it works quite well when it is needed, i.e. Carbo Racing Foil. The blocks are now gone and patches are now where there once were blocks. REEFING. Add to Cart Add to Wish List Add to Compare. lines led aft / single line reefing . Sheave Size 30mm x 11mm. Snap shackles. Look at the lines at the top of this picture. (See illustration below.) These two pictures are of Garry Hoyt's single-line reefing system. Lower the sail to a pre-determined mark on the halyard, tension the reefing line and trim the sail – all from the cockpit. The forward cabin has a centre line double berth with custom mattress and wooden slated base for good ventilation and hanging lockers and shelves on either side. 2. INSTALLATION. When reef two has already been hardened down, the harken block provides the fixing point at the boom for reef three saving a journey to the mast. Using good blocks on the luff and leach reef points instead of the cringles or even low friction rings helps tremendously with single line reefing friction. Harken Vang-Master. The cordage maker’s recommended ratio between the line diameter and the sheave diameter is 8:1. This is OK until Mother nature gets angry and you have to deal with what she hands out to you out there. Second pull down reefing tack to desired position. GP Catamaran Ceramic Mainsheet Systems. (** Barton 4/5 single block, ball bearing sheave, reverse shackle with becket) As friction is a problem on single line reefing systems, I have added blocks at all turning points. 1. Mount the reefing tack block to the mast on the same side as the track is mounted to the boom. The block is attached to the reef cringle by wrapping webbing to the block and running it through the reef cringe to a ring on the other side of the sail. More modern systems would use a block for this purpose but in traditional rigs with many lines to deal with, designed when blocks were relatively expensive to make, a deadeye provided an acceptable compromise. Brierley Marine - Chandlery. The only change I made was to put a block at the luff for the first reef. Single Line Reefing. FREE FREIGHT - Topargee H2F-FM Digital Water Tank Gauge 12V - Flush Mount - Displays Litres Left in Your Water Tank - Nothing Fitted to Your Tank - In Line Flow Meter (H2F-FM) Online Price: $115.00 $140.00 (Including 10% GST Tax) FREE FREIGHT Topargee H2F Digital Water Tank Gauge - New Larger Display with Backlighting and Auto Off - Recess Mount.. My biggest problem is that one cannot establish luff tension, thereby reducing the load on the luff sliders, before placing a load on the reef clew line. This had the effect of putting more tension on the luff simply because of the additional friction at the leech. MKIV Jib Reefing & Furling. Question: Would you contemplate a single-line reefing system on a 667sqft sail? Ring is 32mm (1 1/4") OD x 16mm (5/8") ID, plate is 65mm (5/8") high x 40mm (1 5/8") wide and is … Mainsail Reefing Systems - Dual and Single Line Jiffy Reefing. Great for short handed sailing. We are considering either Single Line reefing within the boom fitted with a shuttle block or fitting the Easy Reef system to the mast. When well set up, single-line reefing systems, which have a low-friction pulley system within the boom can be extremely neat. Model Year: 2004 . And a few tips that work for us as you put in a reef: Lower the main progressively, simultaneously taking in the slack in the other reefs as you go. Dynema running rigging throughout. SJ23 Tech Tip F05, (Updated 2019-07-28) B. Schimmel. All you need to add is a rope for the reefing; you can view the full Kingfisher Ropes collection here. These simple yet strong blocks are low weight and operate well under a wide range of load conditions. Remove the after-market Harken single line reefing system mounted on the outside of the boom. Price From. -4%. Systems B and C are very similar, they use a moving block attachment inside the boom and can only be used for reefs which are not higher than the boom is long. Barton Yachts Pulley Blocks Size 1, Rope up to 8mm. If you’re concerned about an over-crowded boom, Seldén suggests upgrading to a new internal single line-reefing boom. Choose the same side as the track is mounted to the boom. The boom extrusions are relatively deep in relation to their width, allowing a lighter extrusion with high resistance to vertical bending. 2- With one turn of the main halyard around the winch, raise lever on the rope clutch securing the halyard. Ease reefing the mains'l on your Catalina 25. Wichinox: stainless steel hardware maintenance. Barton (pulley) Blocks Size 1, Rope up to 8mm. Fly Soft-Attach Blocks. Free shipping to more than 20 countries. The reef cleat can be mounted on the mast or the line may be led aft to the cockpit with the addition of the related items listed below. Experiment if you want. View all Dinghy Blocks. Small Boat Classic. Then secure three cheek blocks on the starboard side of the boom. If you are going to add single line reefing for both the 1st and 2nd reefs, you'll need the double stacked block pictured below for the forward reef block instead of a single forward. I agree that reefing was marginally more smooth but not worth the wear and tear on the sail. Just lower the sail to a pre-determined mark on the halyard, tension the reefing line and trim the sail – all from the cockpit. In general the consensus seems to be that single line reefing results in too much string in the cockpit and/or the boom is too short for this to work so the install will involve two separate reefing pennants. Posted by … I finally decided to take a serious look at it and discovered that the Selden system actually has two lines. GP Catamaran Ceramic Mainsheet Systems. System A uses two blocks in the sail and can be used for reefs higher than the boom is long. World leader in manufacturing safety related products for outdoor sports and industrial applications Wichard Inc is the North American subsidiary of the French owned Wichard Group. Sails with reef points do not need modifying. fearmhuir said: I have Selden single line reefing. Reefing eye straps; Go back. Lines lead from front sail eyelets, forward slightly, to deadeyes on mast to ensure correct tension on foot and luff at tack. 29-XX range (42mm diameter sheaves) Single Line Reefing kits let you shorten the mainsail in three easy steps; ease the halyard to a predetermined mark, tension the reef line, and trim the sail. Show All. It boats an intelligently designed deck layout with halyards, topping lift, reefing and outhaul controlled at the mast. when reefing down, it is a big issue when shaking out a reef. 150 ft². Planning. £32.34. Premiumropes: expert in ropes and steelwire rigging, sailing hardware - large stock, expert advice and craftmanship. Small Boat Underdeck. Adding some tension to the D1s, D2s, D3s and enjoying the best fall day so far in #2021 #rigging #annapolis @passport_yachts #54footer #fall #sailboats and finally check out this #badass #custombosunschair made by our friends @yacht_canvas using #dyneemawebbing Undo, or cut off, the knots holding the shackles on the forward reefing lines. You want the luff to be pulled straight down, maybe slightly favored forward since the reefing line and block won't be as fixed as the reef hook, but you don't want a wrinkle at the luff from going too far forward. To cut the friction, I lashed blocks to the sail reef points. Maximum Mainsail Area. Don't have to reef early and have never had to winch. Unless this eventually leads to damage of the tack block (something I'll have to keep an eye on), it seems to distribute the tension of tack and clew much as I would do if I had separate lines. It would make more sense, although it would require considerably longer reefing lines. Quote. Although we use this block primarily for reefing, it may be used anywhere a sturdy Delrin ball bearing cheek block is required. Hi all, I'm interested in peoples opinion of various single line reefing systems. Part #10193. I drop the halyard to just beyond the reef marked on it with Sharpie, crank down on the single-line, and re-tension the halyard to the reef mark. Once the tack block is touching the horn, any additional tension on on the single reefing line can only pull the clew in tighter. Cut the blocks off the main sail luff and installed two line reefing (see Harken) ; just like Jeff says its way better.It could be that different boats behave differently, don't know, but in my case of a fractional rig and dominant main the … Hunter 36 The final configuration from Summer Snow differs from this configuration in a couple of way that may seem picky at first blush, but are actually important changes to reduce stress on the mast,sail, boom and lines. Flip-Flop Small Boat. A Few Reefing Tips. Mast Folded: Pros: Line routed through upper mast hinge block allows line to fold out and over, away from the hinge, with a straight drop down to the tack reef cringle. The only additional equipment needed, apart from the rope, is two balance Maximum Boat Length. The leech reefing line pulls down, as well as aft to tension the foot. Single Line Reefing: This method works very much like two line reefing, except that one line is run through both reef points (Figure 5) and then only that line is tightened to secure the reef. Perform modifications at your own risk; Carbo Air Blocks. First the halyard is lowered to a pre-marked position, then the reefing line wound in. Rigging hardware including all the fittings and instructions for reefing your mainsail back to the cockpit. Shaking out from a number 2 to 1 is quicker and easier when the #1 is already set. I mount a light block (Harken Carbo Airblock is my favorite) at the tack to reduce friction, and make sure the tack is set first. KEWL. The system makes reefing your mainsail a quick and easy operation. Left is the line that goes back to the cockpit. The booms can be fitted for traditional slab reefing or Single Line Reef, or be used for furling masts. Single loop blocks - Plain bearings; Single loop blocks - Ball Bearings; Single loop blocks - High load bearings ... Offshore Rescue - Safety knife – Line cutter. Single braided line made from super fibres such as Dyneema ® or Stirotex - use when both ends are free Rope: DX Core , DX Core 99 , S Core , P Core Double braid rope made from super fibres such as Dyneema ® or Stirotex - simple method Apr 17, 2013 10:02:18 GMT. modern rigs sometimes use a single line "jiffy reefing" system with cheek blocks to tame the tack and clew at the same time (in theory). Secure a stainless steel eye-strap to the port side of the boom near the clew of the mainsail. Is there a block that can be sewn onto the sail to take the place of the rings? Also stops the line chafe that often occurs. Bought my boat with a single line reefing setup and often needed to venture to the mast to untangle the reefing line. Single Line Reef is made practical and reliable by Seldén. The reefing line from reef three at the luff of the mainsail passes down to a small harken block with a fixed becket which is fixed to the reefing cringle for reef two. The leech reefing line pulls down, as well as aft to tension the foot. So I have a single line running through both tack and clew. The complete system is supplied as a ready-to-mount unit. That said, you can also try going with a ring on the leech with little gain in friction. Eye bolts; Eye nuts; Go back. Reflex Furling. Unless this eventually leads to damage of the tack block (something I'll have to keep an eye on), it seems to distribute the tension of tack and clew much as I would do if I had separate lines. Tools : Pencil Pliers Single Line Reefing - I am looking to fit single line reefing (first reef position only), as i do a lot of single handed sailing - does any one have a REEFING. This will be true for all three of your reef points. Just wondering if those would be strong enough for the single line reefing lines at the sail? In my view this is by far the best system, especially when shorthanded. Rehoist the halyard for proper tension. Price From. Remove the outboard boom end-fittning (Phillips or Torx screws). £30.95. Most sailors will stay in protected water during lousy weather claiming they don't have decent reefing on the mainsail. Sailspar I think would be able to quote for a black anodized boom, I think they also use the Z Spar boom sections. Jeanneau Guru. I personally prefer single-line for speed and convenience. I am looking at blocks which have a safe working load of 1540 lbs and a breaking load of 3080 lbs. 4. Protexit™ Exit Blocks. Been using a single line reef for the last 10 years on my E27. I am looking at blocks which have a safe working load of 1540 lbs and a breaking load of 3080 lbs. The Kiit comprises: 1 x Reefing slide on 25mm ‘T’ track with end fittings (No.1) 2 x Eye Straps (No.2) 1 x Tang Block (No.3) 1 x Bullseye (No.4) Useful information. Through-Deck. I would like to discuss the single line reefing system as a separate subject. Reflex Furling. Right is the line that goes down to a block at the vang, then up through the auto reefing fairlead, then up to the appropriate reefing cringle. 3. Single-line reefing is a variation on the slab reef in that the clew and tack are pulled in with a single line. Protexit™ Exit Blocks. triple spin lock block main halyard led aft mast base / blocks note sheet holders Published by: MMMike. England. Figure 1 below shows a typical single line reefing system for the first reef in a main. Compounding the friction is the diameter of the line related to the blocks. Lazy Jacks. Lines lead from front sail eyelets, forward slightly, to deadeyes on mast to ensure correct tension on foot and luff at tack. Wire High-Strength. Single line reefs down tack and clew points. Small Boat Classic. £10.24 £8.00. A system of guided blocks inside the boom ensures that the lines do not tangle. Sea Shadow - #808 Columbia, MD . To reef, take an alpine butterfly in the reefing line towards the tack, haul tack down snug, take a bight in the part of the line towards the clew, pass bight through alpine butterfly, haul snug and secure with a few half hitches. Remove & replace the small worn front reefing line sheaves. I don't find much difference, because all you have to do is to chuck the cunningham eye into the #1 reefing eye before you dump the #2 tack line. Snap hooks. Made the whole system work like a charm. I ended up switching to a more standard single line reefing: Going to that meant putting the two cheek blocks external on my boom. One near the clew corner; one four or five inches aft of the gooseneck; and the third near the gooseneck. Fully zippered sleeve luff sail combined with a halyard for hoisting and an open reef section allows for single line reefing on the water in seconds for sailing in rough conditions. Seasure Inside Boom Single Line Reefing Block. Note the blocks at the tack and clew reefing cringles to reduce friction and that the lead from the boom to the clew is well forward on the boom. Small Boat Underdeck. Carbo Racing Foil. Siezed sheaves in Selden boom single line reefing kit on 36i. rene460. One attached to the reef tack and then to a car inside the boom and the other attached to the reef clew and run through the car, the boom and back to the cockpit. MKIV Jib Reefing & Furling. The system makes reefing your mainsail a quick and easy operation. Often used in climbing. Stu Jackson, C34IA Secretary, C34 #224, 1986, SR/FK, M25 engine, Rocna 10 … 4 x 5mm counter sunk machine screws, penny washers (or backing pad) are not provided as deck thickness may vary : 2. The Corsair 37 features a shallow draft with retractable daggerboard and rudder for shallow water exploration. Location. Third pull reefing clew into proper position. Single line system (per reef – 2 reefs shown). Lazy Jacks contain mainsails while reefing and dousing. Show All. Micro. The blocks hang off the loops passing around the boom. Acts as fairlead for reef line and stop for sail when reefed with AutoReef (single line) reefing system. Seasure Single Line Reefing Block 09-60 28mm. Illustrated system is based on Series 40 All Purpose blocks, is suitable for mid range keel boats to 10m (33ft). The second concerns sail shape. Single line reefing kits let you shorten the mainsail in three easy steps: ease the halyard to a predetermined mark, tension the reef line, and trim the sail. It is certainly possible however you will need to consider how to run the reefing lines. First release main halyard tension. Perhaps bluewater sailors should consider fitting the cockpit-controlled, single-line reefing system to reefs 2 and 3 and keep the first reef as manual. Tas Lifting - Lifting Sales & Servicing. Single Line Reefing. Through-Deck. Index. Share. When blocks came into common use … Includes wire rope; single leg wire assemblies; wire strands; control pulleys; turnbuckle lock clips and other wire rope attachments and terminations. Ref: S409-60. All, Catalina (or maybe the delivering dealer) has rigged the single line reefing a number of different ways over the years. Two line slab reefing. (Replace both sheaves as they are of similar original vintage) 2. Single Line Reefing. Posts: 998. Contents of your Single Line Reefing Kit : 1 x Reefing slide on 25mm 'T' track with end fittings (No.1) 2 x Eye Straps (No.2) 1 x Tang Block (No.3) 1 x Bullseye (No.4) 1 x Mast Base block (No.5) Rivets and machine screws. (H) Block for tack and clew reefing lines to take them aft. Standing Rigging - 2013. that line is the "single" line you pull to put in the reef. This will be true for all three of your reef points. 3. 690. The use of carbon fibre needle roller bearings means that they run well even under high loads whilst freewheeling under light loads for fast line take-up. Stoppers: Knots tied at the end of a line to prevent the line from running through devices such as cleats or pulleys. Barton (pulley) Blocks Size 1, Rope up to 8mm. All other control lines aft … 27 ft. This project we are calling “shuttle cars be gone” because inside the Island Packet boom there are two shuttle car blocks with pulleys. Re: Gaff/gunter rig main reefing systems. Details. The second concerns sail shape. There is no need to struggle while "planting the flag" as with other dinghies and you can easily drop the sail while on shore without dropping the mast. I am using a "dogbone" through the tack cringle with one of the Antal low-friction eyes as a block. For the 3 luff reefing points I used Barton swivel eye ball bearing size 4 pulleys, as the pulleys wheels are covered on both sides. Simplifies the rigging and also will allow future line replacement to be done without having to drill out the end caps again.-- Jyri J. Virkki - Santa Cruz, CA-- Seldén estimates the main reef clew force to MSL (maximum in service load)=5.5kN, the reef tack load to MSL=3.5kN (10 Newton=1 Kg f). When the reef tack is down, attach the shackle or put the ring on the bullhorn. Single line reefing is only possible for 2 reefs with the third a standard reef. Single deadeyes (or bull's eyes) are used to guide and control a line and, particularly in older vessels, to change its direction. These shuttle cars are there to provide a purchasing power to the reefing system. YKK #5 Black Single Non-Locking Long Metal Zipper Pull (Coil Chain) #104359 YKK #4.5 Black Single Non-Locking Metal Zipper Pull (Coil) #104361 YKK #10 White Single Non-Locking Metal Zipper Pull (VISLON) #103188 SO30i 2009. The booms can be fitted for traditional slab reefing or Single Line Reef, or be used for furling masts. Experiment if you want. These are a 2" block and can handle 1/4" to 1/2 " lines, our reefing lines are 3/8". One thing when changing the boom is to check the gooseneck will work, this can be another extra cost! … Blue Magic has single line reefing and big electric winches to control a big mainsail. Flattened SS ring is welded to diamond shaped SS plate. For a three part (three line segments) outhaul, you’ll need: Harken 083 single block with a becket or equivalent; Ronstan small V-Cleat Fairlead or equivalent; 4′ x 1/4″ New England Ropes Sta Set or equivalent. Fly Soft-Attach Blocks. Bight: A slack part or bend in a rope. Position the reefing tack block so it’s aft of There is no information that I could find on seized sheaves. Contents of your Single Line Reefing Kit; Tools Required for fitting; Positioning the Reefing Slide on The Track (No 1) Mounting Track The best solution would be a dismantle, service and reassemble, but this would be a big job. 4. 27 Jun 2015 7:19AM. These are a 2" block and can handle 1/4" to 1/2 " lines, our reefing lines are 3/8". Small Boat Furling. Friction is the enemy on any mainsail reefing system and if you want the most efficient single-line reefing system you’ll have to put your hand in your pocket and spend money on high-load blocks and sheaves with bearings. Answer: We really don’t like single line reefing systems because of the level of complication and the amount of friction that all the blocks add. The friction is essentially gone. Pros: Reefed Sail: Line from Tack Reef Cringle routing down to the lower mast hinge block allows a steeper angle when reefing which will help keep the luff tighter. You want the luff to be pulled straight down, maybe slightly favored forward since the reefing line and block won't be as fixed as the reef hook, but you don't want a wrinkle at the luff from going too far forward. Single Line Reefing. Single line reefing system for sailing yachts up to 30 foot. Position the block so the line pulls down and forward at 45° when reefed. Published date: August 7, 2004 ... Boat Type: Boat Type; here are my lines led aft: single line reefing. The reef lines run from the tack down through a fair lead on either side of the boom, then down to the offending block, where they are run back up to the boom and aft through the boom to their corresponding clew rigging (I assume to blocks within the boom) from which they are run back to the forward boom sheave and down to a swivel block at the mast step, … We are considering either Single Line reefing within the boom fitted with a shuttle block or fitting the Easy Reef system to the mast. 0 Reviews. Has anybody had experience of the Easy … Sheave Size 30mm x 11mm. Marine Store | All Products | Dinghy Fittings | Dinghy Blocks | Seasure Single Line Reefing Block 09-60 28mm. Small Boat Furling. Saw this on a Beneteau 323. The luff and the leech are reefed at the same time. Slab reefing mainsail with lazy stack pack and Facnor furlers for genoa and staysail 2018. Wire High-Strength. Barton Yachts Pulley Blocks Size 1, Rope up to 8mm. (See illustration below.) Product details. All you do is ease off the halyard to premarked reefing points and then haul in on the reefing line. If you’re concerned about an over-crowded boom, Seldén suggests upgrading to a new internal single line-reefing boom. Allan S. Field . it's a lot of line and can add a lot of friction especially when raising sail, and particularly when lines are run through hollow booms. The kit includes all required hardware, blocks, line, and mounting screws for your first set of reef points. Pull out the forward reefing lines aft … The kit includes an aluminium track, a traveller, blocks, fairleads, shackles and screws. Knives & Line Cutters; Multitools; Rigging Knife Kits; Rope Splicing Kits; Marine Fastenings Copper Nails & Roves ... Barton Plain Block Single Swivel & Becket (Without Shackle) Size 0. The line then goes back to a block at the bottom of the mast and off to the cockpit. Seldén estimates the main reef clew force to MSL (maximum in service load)=5.5kN, the reef tack load to MSL=3.5kN (10 Newton=1 Kg f). DESCRIPTION. Illustrated system is based on Series 40 All Purpose blocks, is suitable for mid range keel boats to 10m (33ft). It is now working twice as hard, pulling down the outboard and the inboard portions of the sail, and even with large blocks to aid the line, it still meets a lot of resistance. Once the tack block is touching the horn, any additional tension on on the single reefing line can only pull the clew in tighter. Safe working load 1150 pounds. To reef, you start with the boat sailing on a point that allows you can dump all the wind from the main by easing the sheet. Splice on messenger lines. Consider getting rid of the blocks (reef and 2 outhaul) inside the boom while at it. Types: Single, Double, Boom Reefing Blocks, Bolt Down. If I got it right the purpose of those systems is to first pull in the tack and then the clew. Slide: Knots used to tie onto another line which can be moved along the line as needed. Types: Single, Double, Boom Reefing Blocks, Bolt Down. Can reef anytime. This smart solution can be mounted with standard tools and allows running the reef line to the cockpit. The main is small enough to get away with it. Agree with Jeff. Single Line Reefing shortens the mainsail in three easy steps: ease the halyard to a predetermined mark, tension the reefing line, and retrim the sail. Harken Vang-Master. Part #9605. Sails with reef points do not need modifying. We sail a Beneteau 321 which has standard reefing for the main sail. Description. The Z spar system uses floating back to back blocks. Micro. The Pfeiffer Marine reefing system is suitable for boats up to 34 feet. Needless to say, the blocks in either of these systems need to be the low-friction, ball bearing type. © 2001-2022 Sailrite.com Sailrite Enterprises Inc. 2390 E. 100 S. Columbia City, IN 46725, USA Basically it's using two lines that can each double as a cunningham or a reefing line. 0%. Grip: Slides which incorporate a loop for a grip. Single line system (per reef – 2 reefs shown).