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RMR-Reefing masts
RMR reef masts are constantly updated and with their proven drive technology are particularly designed for sailors who need to reef the mainsail simply and safely when sailing with a small crew.
The RMR system makes it easier to handle both large and small yachts. Reefing the mainsail to the required size can be done by one person from the safety of the cockpit.
The drive for the luff rod is provided by a virtually maintenance-free hydraulic drive with self-braking worm gear, spiral bevel gears and helical drive gears in combination with a robust Danfoss hydraulic motor.
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Rondal constantly strives to optimise style and structural soundness. The combination of engineering and style found in our winch bases, mast/spreader connections, spreader lights and so on reflect our attention to detail. Masthead, gooseneck and many other components are designed, cut and milled with the aid of computer assisted machinery to ensure accuracy and cost-effective production. To counteract any problems associated with corrosion, Rondal welds all aluminium tangs, brackets and other fittings. When stainless parts are fitted, maximum effort is made to avoid corrosion in the future. The mastheels are constructed from plate material, either to fit in a standard Rondal maststep or on a Rondal hydraulic mastjack. All masts are completed with a two component polyurethane paint finish. Clients can choose almost every possible colour.
Made of Alustar aluminium plate
In order to bring down the weight and the centre of gravity of our aluminium masts, Rondal developed the alternative method by utilizing ALUSTAR aluminium plate material for the construction of masts.
These masts are engineered and produced to just cover the required Moments of Inertia over the full length of the mast in both longitudinal and transversal direction.
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For dinghies and small cruisers
LEASURE/CLUBS MASTS
untappered tubes, outer yard ropes.
Delivered with tenon heel plug.
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For dinghies and small cruisers
REGATA MASTS
Tappered tube, if authorized by the class rules. Inner yard ropes
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C-Tech manufactures masts for sports boats in:
- Round section, suitable for boats like Thompson 590
- Oval section, suitable for larger size masts
Construction techniques
- available in standard, intermediate or high modulus carbon fiber
- reinforcing for fittings can be built into laminate
- shrink-wrapped and heat cured
- black carbon finish or painted
- can be built to any size specifications
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The demand for lighter masts (and booms) shows no sign of abating as owners request ever-lighter displacement cruising yachts. Anticipating this trend, Rondal became involved in the carbon fibre field at an early stage. Assisted by the Dutch Aerospace Laboratory at the design stage, it is believed that Rondal has chosen the best way of production.
Characteristic for the Rondal carbon fibre mast is that, whatever the length, the mast is built in one piece. Building the mast in one piece has the huge advantage that the fibres in the 0° layers run from top to bottom without any interruption in the fibres. All compression forces can be guided safely through the laminate.
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Extruded aluminium is an excellent material for making masts. This is where Selden has earned its reputation as world leader in mast making. Today Selden offers a full range of masts and rig equipment in both aluminium and carbon including booms, spinnaker poles, Rodkicker rigid vangs, furling systems and rig linings. All rigs are custom-made, through every calculation and detail, lor each individual boat. We know how much depends on the rig, and there is no room for compromise.
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Selden aluminium spinnaker poles give you fast and safe spinnaker handling. All the fittings have well-rounded edges to prevent personal injury and damage to equipment. The extrusions are lightweight and very durable, and are fitted with pole savers to shield the pole against damage from forestay and shrouds.
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We have developed our own computer controlled manufacturing method in which prepreg (pre-impregnated) tows are wound onto a mandrel (cylinder) prior to oven curing. This method enables us to exercise full control over every stage of the manufacturing process and guarantee products of consistently high quality. One of the big advantages of this Selden production method is that it enables us to achieve sufficient durability in the areas subject to the greatest loads and wear.
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It's no coincidence that carbon fibre is used in aeroplanes. Carbon composite combines stiffness and strength with low weight. Selden low-weight carbon spars have accentuated longitudinal stiffness. This means that forestay tension can be substantially increased. All experienced racing sailors know what this means in terms of increased performance. The combination of greater stiffness and reduced weight will bring you beyond the speed limits.
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A Seldén furling mast lets you operate your mainsail from the cockpit, simply ans easily. Its unique features for reducing friction and initial sail resistance make furling and reefing child's play. And it also makes sailing safer and far easier for you and your crew.
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Telescopic pole, can be extended to 150% of normal spinnaker pole length (SPL), a must when poling out a large genoa or a gennaker. It can be telescoped down for easier stowage.
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The past 15 years have seen a major shift in spar construction from aluminium to composites. The benefits of strength, reduced weight, durability and precision engineering offered by composite construction are now well established.
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Hall carbon-fiber poles are manufactured using the same aerospace-quality, seamless construction process as our extraordinary masts and booms. Each pole is custom molded on a male mandrel then autoclave-cured to eliminate voids. Hall uses unidirectional, pre-preg carbon fiber for the pole's structure, resulting in maximum strength at minimum weight.
Hall Spars & Rigging spinnaker poles are made for intense sailing. Hall poles save weight on deck, are easier to handle (half the weight of aluminum), and are incredibly tough. Kevlar in key areas protects the carbon from chafe.
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Hall QuikTrip - "Jaw" fitting
Machined from a solid piece of aluminum to achieve high strength-to-weight ratios. Hard-coat anodized; its trigger pin is stainless steel with a tungsten-carbide coating.
Availble in trigger or piston version for 3.0 and 4.0 pole diameters.
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Established in 2004, our One Design business is dedicated to supplying production rigs, from high performance dinghies up to 60 foot performance cruisers. We apply the lessons learned at the grand prix end of the spectrum to create superb high performing consistent production rigs. Our tools are scientific analysis, sound knowledge and a passion for high performance yachting.
Southern Spars One Design is committed to producing high performance carbon rigs with an emphasis on value for money - spending money where it counts. The experience from 15 years of building the most successful custom carbon rigs in the world is being used in the manufacture and design of production One Design rigs.
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Hall seamless carbon spars are the perfect complement to the high-performance cruising yacht. The light weight means less pitching and motion in a seaway. It also gives the designer flexibility to put weight into the interior instead of the keel (righting moment).
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Hall seamless carbon-fiber masts have no peer in the combination of light weight, stiffness, and the ability to tune easily for changing conditions. Hall is the choice of the winning Cup crew in the last two events.
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Hall seamless carbon-fiber spars are light and strong, and tested around the world on racing boats from Cup racers, Volvo 70s, TP52s to J24s.
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A truly robust range of end fittings. Fabricated from 316 stainless steel they are very durable and capable of survival even in the toughest conditions.
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SPARS, POLES & TUBES
We have amassed a broad selection of mandrels over the years and can provide spinnaker poles, bow sprit tubes and whisker poles for just about any boat from 14 to 90 feet.
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Aluminium body, accepts up to 20mm (3/4") dia. ring or line
Suits standard tube sizes. Rugged, external-pull construction for reliability and easy servicing. Attachment point for pin release lines.
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