The main is small enough to get away with it. A. Has anybody had experience of the Easy 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). DESCRIPTION. 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, Given that, the procedure is: 1- Ease the main so it is completely luffing. It boats an intelligently designed deck layout with halyards, topping lift, reefing and outhaul controlled at the mast. 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. All, Catalina (or maybe the delivering dealer) has rigged the single line reefing a number of different ways over the years. Types: Single, Double, Boom Reefing Blocks, Bolt Down. The complete system is supplied as a ready-to-mount unit. Designed for in boom reefing systems, featuring soft rubber type bodies to prevent damage and reduce noise within the boom. 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. Great for short handed sailing. 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. This will be true for all three of your reef points. Answer: We really dont like single line reefing systems because of the level of complication and the amount of friction that all the blocks add. Left is the line that goes back to the cockpit. We are considering either Single Line reefing within the boom fitted with a shuttle block or fitting the Easy Reef system to the mast. Undo, or cut off, the knots holding the shackles on the forward reefing lines. 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. when reefing down, it is a big issue when shaking out a reef. Been using a single line reef for the last 10 years on my E27. Rehoist the halyard for proper tension. 30.95. Single line reefing is only possible for 2 reefs with the third a standard reef. The blocks hang off the loops passing around the boom. Seldn 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). Two line slab reefing. Carbo Racing Foil. Tools : Pencil Pliers It is certainly possible however you will need to consider how to run the reefing lines. Micro. Single line reefs down tack and clew points. Remove the after-market Harken single line reefing system mounted on the outside of the boom. 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. 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. 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 0%. If I got it right the purpose of those systems is to first pull in the tack and then the clew. Slab reefing mainsail with lazy stack pack and Facnor furlers for genoa and staysail 2018. A Few Reefing Tips. 150 ft. Bought my boat with a single line reefing setup and often needed to venture to the mast to untangle the reefing line. Small Boat Furling. Lower the sail to a pre-determined mark on the halyard, tension the reefing line and trim the sail all from the cockpit. One thing when changing the boom is to check the gooseneck will work, this can be another extra cost! Also stops the line chafe that often occurs. (Replace both sheaves as they are of similar original vintage) 2. Sailspar I think would be able to quote for a black anodized boom, I think they also use the Z Spar boom sections. Free shipping to more than 20 countries. That said, you can also try going with a ring on the leech with little gain in friction. Barton (pulley) Blocks Size 1, Rope up to 8mm. Flip-Flop Small Boat. There is no information that I could find on seized sheaves. The boom extrusions are relatively deep in relation to their width, allowing a lighter extrusion with high resistance to vertical bending. 29-XX range (42mm diameter sheaves) The only additional equipment needed, apart from the rope, is two balance Once the tack block is touching the horn, any additional tension on on the single reefing line can only pull the clew in tighter. The booms can be fitted for traditional slab reefing or Single Line Reef, or be used for furling masts. Made the whole system work like a charm. Location. Experiment if you want. I am using a "dogbone" through the tack cringle with one of the Antal low-friction eyes as a block. 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. Through-Deck. All you need to add is a rope for the reefing; you can view the full Kingfisher Ropes collection here. (** 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. Siezed sheaves in Selden boom single line reefing kit on 36i. 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. Posts: 998. 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. Is there a block that can be sewn onto the sail to take the place of the rings? Maximum Boat Length. When blocks came into common use The second concerns sail shape. Compounding the friction is the diameter of the line related to the blocks. Index. 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. Description. I am looking at blocks which have a safe working load of 1540 lbs and a breaking load of 3080 lbs. 27 ft. The Pfeiffer Marine reefing system is suitable for boats up to 34 feet. Snap shackles. The system makes reefing your mainsail a quick and easy operation. 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. Protexit Exit Blocks. Reflex Furling. At the moment my system incorporates four movements if you dis-regard vang and topping lift. Small Boat Furling. First the halyard is lowered to a pre-marked position, then the reefing line wound in. 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. Small Boat Classic. Single line reefs down tack and clew points. Single-line reefing is a variation on the slab reef in that the clew and tack are pulled in with a single line. These shuttle cars are there to provide a purchasing power to the reefing system. Illustrated system is based on Series 40 All Purpose blocks, is suitable for mid range keel boats to 10m (33ft). Friction is the enemy on any mainsail reefing system and if you want the most efficient single-line reefing system youll have to put your hand in your pocket and spend money on high-load blocks and sheaves with bearings. The cordage makers recommended ratio between the line diameter and the sheave diameter is 8:1. I personally prefer single-line for speed and convenience. Just wondering if those would be strong enough for the single line reefing lines at the sail? 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. Harken Vang-Master. Protexit Exit Blocks. The booms can be fitted for traditional slab reefing or Single Line Reef, or be used for furling masts. Price From. The only change I made was to put a block at the luff for the first reef. I ended up switching to a more standard single line reefing: Going to that meant putting the two cheek blocks external on my boom. Experiment if you want. lines led aft / single line reefing . Part #9605. REEFING. Position the reefing tack block so its aft of 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. Stoppers: Knots tied at the end of a line to prevent the line from running through devices such as cleats or pulleys. MKIV Jib Reefing & Furling. Often used in climbing. Perform modifications at your own risk; Single line system (per reef 2 reefs shown). When well set up, single-line reefing systems, which have a low-friction pulley system within the boom can be extremely neat. When the reef tack is down, attach the shackle or put the ring on the bullhorn. 27 Jun 2015 7:19AM. The kit includes all required hardware, blocks, line, and mounting screws for your first set of reef points. Sails with reef points do not need modifying. 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-- 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. Bight: A slack part or bend in a rope. 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. 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. Single Line Reefing. 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. -4%. Price From. Hi all, I'm interested in peoples opinion of various single line reefing systems. First release main halyard tension. 0 Reviews. (See illustration below.) Carbo Air Blocks. Wichard Inc handles the marketing and distribution for North America for Wichard and Profurl, well known brands in Seldn 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). (H) Block for tack and clew reefing lines to take them aft. 10.24 8.00. The blocks are now gone and patches are now where there once were blocks. 690. Sea Shadow - #808 Columbia, MD . INSTALLATION. While it works quite well when it is needed, i.e. Contents of your Single Line Reefing Kit; Tools Required for fitting; Positioning the Reefing Slide on The Track (No 1) Mounting Track The leech reefing line pulls down, as well as aft to tension the foot. The Z spar system uses floating back to back blocks. Marine Store | All Products | Dinghy Fittings | Dinghy Blocks | Seasure Single Line Reefing Block 09-60 28mm. Sheave Size 30mm x 11mm. Second pull down reefing tack to desired position. The boom extrusions are relatively deep in relation to their width, allowing a lighter extrusion with high resistance to vertical bending. Apr 17, 2013 10:02:18 GMT. If youre concerned about an over-crowded boom, Seldn suggests upgrading to a new internal single line-reefing boom. Dynema running rigging throughout. Fly Soft-Attach Blocks. 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. 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. Add to Cart Add to Wish List Add to Compare. System A uses two blocks in the sail and can be used for reefs higher than the boom is long. Eye bolts; Eye nuts; Go back. Quote. 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. Look at the lines at the top of this picture. Barton (pulley) Blocks Size 1, Rope up to 8mm. rene460. It would make more sense, although it would require considerably longer reefing lines. 3. Hunter 36 We sail a Beneteau 321 which has standard reefing for the main sail. In my view this is by far the best system, especially when shorthanded. Tweet. These are a 2" block and can handle 1/4" to 1/2 " lines, our reefing lines are 3/8". Product details. This had the effect of putting more tension on the luff simply because of the additional friction at the leech. that line is the "single" line you pull to put in the reef. Flip-Flop Small Boat. 3. Agree with Jeff. A system of guided blocks inside the boom ensures that the lines do not tangle. 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. Most sailors will stay in protected water during lousy weather claiming they don't have decent reefing on the mainsail. 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 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 Needless to say, the blocks in either of these systems need to be the low-friction, ball bearing type. These two pictures are of Garry Hoyt's single-line reefing system. Question: Would you contemplate a single-line reefing system on a 667sqft sail? Step 3 Installing Tack Block General Instructions Detailed Instructions A. The second concerns sail shape. 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. 2- With one turn of the main halyard around the winch, raise lever on the rope clutch securing the halyard. To cut the friction, I lashed blocks to the sail reef points. This smart solution can be mounted with standard tools and allows running the reef line to the cockpit. Lines lead from front sail eyelets, forward slightly, to deadeyes on mast to ensure correct tension on foot and luff at tack. Small Boat Classic. 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. Fly Soft-Attach Blocks. Position the block so the line pulls down and forward at 45 when reefed. Tas Lifting - Lifting Sales & Servicing. Remove & replace the frozen reef line sheave at the aft cap end. Share. KEWL. We are considering either Single Line reefing within the boom fitted with a shuttle block or fitting the Easy Reef system to the mast. Brierley Marine - Chandlery. SO30i 2009. Third pull reefing clew into proper position. The luff and the leech are reefed at the same time. Allan S. Field . 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. 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. Brierley Hose & Handling - Hose Supplies. 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. Wichinox: stainless steel hardware maintenance. Single Line Reef is made practical and reliable by Seldn. Splice on messenger lines. 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. 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.. Seasure Single Line Reefing Block 09-60 28mm. 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. Single Line Reefing. Sheave Size 30mm x 11mm. Published date: August 7, 2004 Boat Type: Boat Type; here are my lines led aft: single line reefing. 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. fearmhuir said: I have Selden single line reefing. Grip: Slides which incorporate a loop for a grip. This will be true for all three of your reef points. Blocks on single line reefing have nothing to do with the design concept on one line doing both. triple spin lock block main halyard led aft mast base / blocks note sheet holders Published by: MMMike. View all Dinghy Blocks. Types: Single, Double, Boom Reefing Blocks, Bolt Down. 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. Shaking out from a number 2 to 1 is quicker and easier when the #1 is already set. Standing Rigging - 2013. Lazy Jacks. On one boat I did sails for that had single line reefing, we used blocks at the reefing rings to lower the friction enormously. Carbo Racing Foil. Just lower the sail to a pre-determined mark on the halyard, tension the reefing line and trim the sail all from the cockpit. Stu Jackson, C34IA Secretary, C34 #224, 1986, SR/FK, M25 engine, Rocna 10 The line then goes back to a block at the bottom of the mast and off to the cockpit. 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. Harken Vang-Master. England. If youre concerned about an over-crowded boom, Seldn suggests upgrading to a new internal single line-reefing boom. Includes wire rope; single leg wire assemblies; wire strands; control pulleys; turnbuckle lock clips and other wire rope attachments and terminations. Ease reefing the mains'l on your Catalina 25. Details. Barton Yachts Pulley Blocks Size 1, Rope up to 8mm. Small Boat Underdeck. Single line system (per reef 2 reefs shown). Wire High-Strength. 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. I would like to discuss the single line reefing system as a separate subject. Although we use this block primarily for reefing, it may be used anywhere a sturdy Delrin ball bearing cheek block is required. MKIV Jib Reefing & Furling. These simple yet strong blocks are low weight and operate well under a wide range of load conditions. Single Line Reefing. Single line reefing system for sailing yachts up to 30 foot. The leech reefing line pulls down, as well as aft to tension the foot. the end cap (and later re-rivet) to get at the blocks inside. Slide: Knots used to tie onto another line which can be moved along the line as needed. Maximum Mainsail Area. 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. Sails with reef points do not need modifying. 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. Remove & replace the small worn front reefing line sheaves. 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 Has anybody had experience of the Easy Reefing eye straps; Go back. Once the tack block is touching the horn, any additional tension on on the single reefing line can only pull the clew in tighter. Rigging hardware including all the fittings and instructions for reefing your mainsail back to the cockpit. 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. Consider getting rid of the blocks (reef and 2 outhaul) inside the boom while at it. Micro. The kit includes an aluminium track, a traveller, blocks, fairleads, shackles and screws. Lazy Jacks contain mainsails while reefing and dousing. Safe working load 1150 pounds. Choose the same side as the track is mounted to the boom. 4. Lines lead from front sail eyelets, forward slightly, to deadeyes on mast to ensure correct tension on foot and luff at tack. There is a Harken double block that looks like it may be a suitable replacement, and Rig-Rite sells the original. Basically it's using two lines that can each double as a cunningham or a reefing line. Model Year: 2004 . Wire High-Strength. Reflex Furling. All other control lines aft 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) 32.34. We sail a Beneteau 321 which has standard reefing for the main sail. 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. SJ23 Tech Tip F05, (Updated 2019-07-28) B. Schimmel. This is OK until Mother nature gets angry and you have to deal with what she hands out to you out there. 4 x 5mm counter sunk machine screws, penny washers (or backing pad) are not provided as deck thickness may vary : 2. All you do is ease off the halyard to premarked reefing points and then haul in on the reefing line. 2001-2022 Sailrite.com Sailrite Enterprises Inc. 2390 E. 100 S. Columbia City, IN 46725, USA (See illustration below.) 2. Posted by Re: Gaff/gunter rig main reefing systems. The friction is essentially gone. 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 I am looking at blocks which have a safe working load of 1540 lbs and a breaking load of 3080 lbs. 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. Show All. Just wondering if those would be strong enough for the single line reefing lines at the sail? Blue Magic has single line reefing and big electric winches to control a big mainsail. Barton Yachts Pulley Blocks Size 1, Rope up to 8mm. Don't have to reef early and have never had to winch. 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. REEFING. 4. 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. Changing the reef line blocks 1. So I have a single line running through both tack and clew. GP Catamaran Ceramic Mainsheet Systems. Through-Deck. Ref: S409-60. Flattened SS ring is welded to diamond shaped SS plate. Carbo Air Blocks. The Corsair 37 features a shallow draft with retractable daggerboard and rudder for shallow water exploration. Pull out the forward reefing lines aft 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. Figure 1 below shows a typical single line reefing system for the first reef in a main. The system makes reefing your mainsail a quick and easy operation. Mainsail Reefing Systems - Dual and Single Line Jiffy Reefing. Can reef anytime. I agree that reefing was marginally more smooth but not worth the wear and tear on the sail. Planning. Secure a stainless steel eye-strap to the port side of the boom near the clew of the mainsail. For a three part (three line segments) outhaul, youll 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. Saw this on a Beneteau 323. Jeanneau Guru. Then secure three cheek blocks on the starboard side of the boom. I finally decided to take a serious look at it and discovered that the Selden system actually has two lines. The best solution would be a dismantle, service and reassemble, but this would be a big job. 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. 1. Remove the outboard boom end-fittning (Phillips or Torx screws). Single deadeyes (or bull's eyes) are used to guide and control a line and, particularly in older vessels, to change its direction. 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 This project we are calling shuttle cars be gone because inside the Island Packet boom there are two shuttle car blocks with pulleys. Small Boat Underdeck. Mount the reefing tack block to the mast on the same side as the track is mounted to the boom. Show All. Acts as fairlead for reef line and stop for sail when reefed with AutoReef (single line) reefing system. Part #10193. Seasure Inside Boom Single Line Reefing Block. Useful information. Single Line Reefing. One near the clew corner; one four or five inches aft of the gooseneck; and the third near the gooseneck. These are a 2" block and can handle 1/4" to 1/2 " lines, our reefing lines are 3/8". Illustrated system is based on Series 40 All Purpose blocks, is suitable for mid range keel boats to 10m (33ft). Barton Spare slider for Slab reefing kit for craft up to 8.5m. Single loop blocks - Plain bearings; Single loop blocks - Ball Bearings; Single loop blocks - High load bearings Offshore Rescue - Safety knife Line cutter. Premiumropes: expert in ropes and steelwire rigging, sailing hardware - large stock, expert advice and craftmanship. GP Catamaran Ceramic Mainsheet Systems.
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