The boom vang (or “kicking strap”) is a system used to control the shape of the sail. The mast 12 in the exposed area 17 is clasped securely between complemental semi-cylindrical jaws 30 and 31 of the connector which jaws are faced with respective elastomeric pads 32 and 33. This can readily be accomplished with the novel connector by elevating the boom 15 as shown in FIG. Liveaboard Sailboat Loans - Are They Worth It? thick 6061-T651 aluminum, BMP-2B plates come pre-drilled for DX Engineering Saddle Clamps for greater clamping power without crushing! Product Details: – Universal foot adjusts for taper and mounts to 3/4″ to 8″ round legs and 1-1/2″ to 5″ angle legs. All such variations are contemplated herein. It would be advantageous and an improvement in boardsailing safety if one had the option of reducing the sail area with a convenient method of reefing the sail while on the water. Learn To Sail For Starters – Mast, Boom, And Sails Home › Learn & Burn Community Forums › Motivation › Learn To Sail For Starters – Mast, Boom, And Sails. Hydraulic boom vangs are costlier than traditional block-and-tackle setups. There are various sail configurations in use, all of generally triangular outline, having a hem formed sheath 16 at the luff that slips over the mast and is provided with a short interruption at 17 exposing the mast to permit joining the wishbone or boom to the mast with a suitable connector 18. 2.4 For a MT400: Bolt boom to mast using bolts for the top of boom and bolts for mast connection plate using hardware provided (diagram 2C). However, this arrangement affords very little restraint against wobbling about the long axis of the wishbone. Swivel base plug for mast to suit KO1 section . Mast support. Home. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING, Clamps, i.e. A sailboard consists essentially of: (a) the board or hull; (b) the mast or spar; (c) the sail; and (d) the boom. 1. 3. That said, you should inspect your blocks and make sure they spin freely. The wishbone is usually attached to the mast by lashing its front fitting to the mast with a piece of line called an inhaul. 306794641 - EP 0228344 A1 19870708 - Sail board boom-to-mast connection device. Mast plain plug for Mast to suit KO1 section . If they don't (or they become too loose), they could be failing and should be replaced with high-quality marine blocks. A friend was getting rid of an old P18 and P16, and I took the P16 off his hands after reading about them. The mast is connected to the board by a universal connection. Heretofore, the principal method involved lashing, although various mechanical connections have been suggested. The Learn And Burn Connection is part of the growing family of high-value, low-cost TQ programs for exceptional achievement. A boom vang is a simple device consisting of a pole or a set of blocks and lines. 6 with the boom 15 oriented parallel to the mast. The more rigid the connection of the boom and mast, the quicker the mast and sail will respond during the various maneuvers of tacking, jibbing, and sailing the various points of sail. This can cause you to lose control of the mainsail. FIG. The present invention relates to sailboards and to the sport of boardsailing. Sailboat vs Powerboat - Which is Right for You? Our system collect crossword clues from most populer crossword, cryptic puzzle, quick/small crossword that found in Daily Mail, Daily Telegraph, Daily Express, Daily Mirror, Herald-Sun, The Courier-Mail, Dominion Post and many others popular newspaper. When the sockets are positioned generally normal to the longitudinal elements of the jaws the latter are urged together by the sockets to clamp on the mast. … Sometimes, the mainsheet is located far at the end of the mast and connected to the stern of the vessel. - Learn More. In other words, the boom gnav operates within the sail area, which is a part of the boat that's already unusable due to the sail. The forward end of the boom attaches to a mast just below the sail, with a joint called the gooseneck.The gooseneck pivots allowing the other end of the boom to move freely. Nevertheless, it should be understood that sufficient play remains, no matter how carefully the lashing 22 is applied, that the wishbone 15 is permitted to wobble about the longitudinal axis that bisects both the connector 18 and the boom end 21, thereby reducing the control of the sailboard. 10, apply the connector thereto, then use the uphaul line 19 or other available rope to lash the jaws 30 and 31 together about the furled sail as shown in FIG. Blocks are generally reliable and don't require a significant amount of maintenance. There are occasions when under sail it is desirable to reef the sail in order to reduce its area. The further from the centerline the boom travels, the less downward force the mainsheet provides. Sometimes boom extension pieces are inserted between the booms and the rear fitting. Prindle 16 Mast and Boom Connection ; Print topic ; scotth. The easiest way to tell the difference between the boom vang and the mainsheet is location. The mainsheet is much further back and generally vertically-oriented. Another common failure point is the spring, which can weaken or break and make the vang almost unusable. Another problem with the conventional rope connection is it precludes reefing the sail to reduce its area since the sail cannot be furled by wrapping around the mast while the boom is lashed to the mast. For joining a wishbone boom to the mast of a sailboard there is provided a connector having a body to which is pivotally joined a pair of sockets for receiving the mast ends of the wishbone, the sockets straddling a pair of complemental semi-cylindrical jaws pivotally mounted on said body and arranged to embrace a mast. The clew (back corner) of the sail attaches to the free end of the boom. Fitting used to connect a boom vang to a boom or mast. The fore and aft clearance between the connector 18 and the mast 12 has been exaggerated for convenience in illustration. Here's a shot of us coming back to port after the gooseneck busted. Staff. One of the unsung heroes in an antenna building project is the versatile antenna plate that can be used for boom-to-element and boom-to-mast applications. Just remember boom vang forward, mainsheet aft. They're ready to accommodate booms and masts as follows: -- For mounting a 1.500 in. Make sure the aluminum mast is solid, as corrosion can weaken the areas around the mounting holes. With Mast & Boom Protection you have nothing to fear! When it is desired to transport the sailboard it is merely necessary to furl completely the sail as shown in FIG. Mounts to mast with rivets or scews (not included). Since the jaws freely pivot relative to the body member 38, they can be manually grasped and held in engagement with the mast while the mast is raised and the boom is lowered in the relative directions shown by the arrows 44 and 45 in FIG. This means that you'd lose a tremendous amount of control without a boom vang, especially as you loosen the sheet. Boom to Mast connection New Topic Topic Locked Printer Friendly: Author: Topic : Doug G. 1st Mate. If the boom tang has straight legs, carefully bend them to fit the combination of the boom curvature and the tang angle. Contact Us. A boom gnav takes up no extra cockpit space as it mounts atop the boom and to a higher point on the mast. Will also fit on other brands Mast item. KO1G/N. A CONNECTION THAT MAKES A DIFFERENCE. The gooseneck, the connection between the mast and the boom, on these boats has a pin that fits into an axial hole in the end of the boom so that boom can easily be removed from the mast when not in use. - [origin: US4704980A] The front body (2) has holes (3, 4) for receiving the ends of the wishbone boom, and an arched surface (7) intended to be applied against the mast. The prior art method of securing the wishbone 15 to the mast 12 by lashing is illustrated in FIG. The boom jack line runs down from the top of the mast to a block or cleat on the opposite end of the boom vang. In most cases, the best option when your hydraulic boom vang fails is to replace it entirely. Now directing attention to FIG. In a presently preferred embodiment, the clasping means takes the form of a pair of complemental jaws, and the means for urging the jaws into clasping embrace include pivotally mounted sockets for receiving the ends of a wishbone assembly. Add to Cart. Application filed by Humble David Raymond, Hans Barth, SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT, Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing, Rigging arrangements involving masts, e.g. The mainsheet is much further back and generally vertically-oriented. There are two primary types of boom vangs used on sailboats today. Reefing is sometimes necessary, or at least desirable, when a boardsailor is on the water and the wind increases to the point where it overpowers the full sail and makes the craft uncontrollable. Each of the jaws 30 and 31 is provided with a corresponding clevis 34 and 35 secured by pivot pins 36 and 37 which pass through the body member 38 parallel to the longitudinal elements of the jaws. Free format text: 0. Mast & Boom fittings | nandjmarine.com | March 6, 2015. Various advantages are derived from the present invention as will appear from the description that follows. 6 is a view similar to FIG. Tagged: 16. IWS – Inner Wheel Slider … Windsurf Protective Gear Available at Best prices! Just remember boom vang forward, mainsheet aft. Lifeofsailing.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon. with contracting action using pivoting jaws, GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS, TECHNICAL SUBJECTS COVERED BY FORMER USPC, TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION. 3, the connector 25 constructed in accordance with the present invention, is shown secured to the mast 12 with the ends 26 and 27 of the wishbone boom 15 secured in respective connector sockets 28 and 29. 11, whereupon the boom can be positioned parallel to the mast for carrying the entire mast/boom assembly. 0490 060 939. keeleymarine@mail.com. What's the difference between the boom vang and the mainsheet? 10 iillustrates the assembly of the connector to the completely furled sail; and. Well, it finally happened - the cast aluminum gooseneck connection holding my mast to the boom crumbled. 9 illustrates disconnection of the connector to permit furling of the sail either for reefing or stowage; FIG. The second type is the hydraulic boom vang, which is more advanced and offers unique benefits. The geometry is such, however, that approximately ±30° rotation about pivot 39 from the perpendicular position shown in FIG. GST. For traditional boom vangs, regularly inspecting the blocks and lines can prevent problems down the road. The wishbone generally consists of a front fitting and a rear fitting connected by two booms. Boom jacks resemble any other rigging on a sailboat. A substitute for a boom vang, the vang almost unusable will fit... Control the shape of the material of the sailboard it is angled toward the of... 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