Monthly Archives: January 2017

  • Macerating Pump Experts Share Big Strategies For Big Boats

     


    Your Macerating Pump Specialists Give You the Big Edge in Big Boat Racing 

    Raritan Engineering Company your macerating pump analysts would like to share with you these topics we thought would be of interest to you this month regarding big strategies for big boats.

    Your macerating pump experts know that my first superyacht race was in France in 2008 on a 112-foot Swan, and the first tactical call of the week was whether to race with the spare anchor, 300 feet of chain, and the Jet Ski, which we discovered in the bow locker. Lighter boats are faster boats, of course, but we quickly learned that when the boat weighs north of 200,000 pounds, it’s best to focus on sailing safely and not upsetting the captain by making him leave the toys on the dock.

    Your marine parts plus professionals know that very few superyachts are built with racing performance as a top priority. The key to racing them successfully, therefore, is to understand the limitations we have to work with. That’s the fun of it, too, because there are always plenty of hands on deck. 

    Once we heeled enough to get the leeward rail wet, which was around 14 knots of breeze, we could sail well to our handicap. In 15 knots and flat water, we could finish a tack in about one minute and 20 seconds. Your marine parts online analysts feel that the tacking angle was around 110 degrees, which isn’t too bad for a 320-ton ship. Light air was a different story. In less than 10 knots, the tacking angle was more like 130.

    When the wind was up, we had one shot at sheeting the genoa on after a tack. If we tried to sheet harder, once the genoa was fully pressed, the computer would tell the captive winch to ease instead of trim because the loads were too high.

    The start of a superyacht race is simple but rarely easy. Organizers wisely set up the races in either a pursuit format, where the boats start in order of handicap performance (slowest to fastest), or on a staggered-start format (typically two-minute gaps), with a handicap applied after the finish.


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    Your Macerating Pump Professionals Help You Avoid the Kiss of Death

    You can find more information as well as get assistance on marine hardware at Raritan Engineering.

    Well, that was the kiss of death. Your marine hardware specialists say that they started on starboard but were about 30 seconds late. Pretty good timing for the 500-plus-ton Perini Navi, but it presented a significant problem for us, as we were committed to our timing two minutes out. 

    While doing so, we had to honor a mandatory 40-meter safety gap and still head up around the other boat’s transom to clear the starboard end of the line. The only way to slow our beast was to ease everything and bear away to a near flat run. By the time we got cooking again toward the starting line, we were more than 45 seconds late for our start and had completely screwed up the boat behind us.

    Your marine parts near me experts say that in reality, tacticians and drivers get puckered when the boats get less than a boat length from each other, because it takes a shockingly long time to execute course changes. The last thing an owner wants is to be on SportsCenter’s highlights reel. 

    Tactically, the play is for the faster boat to sail directly at the transom of the slower boat and put a man on the bow with a digital range finder and a communications unit, relaying distance to the afterguard in the cockpit. 

    It’s essential to decide well ahead of the intersection how to approach each boat. It’s also beneficial to know which ones are happy to let you through quickly (perhaps they are scored in a separate class) and which ones won’t roll over without a fight. For a slower boat, the tactical game is based on sailing smart and minimizing the effect of the bigger boats as they stream past. 

    Just as Mirabella V rolled us, 50 meters to windward, the captain of our boat remarked that Mirabella V had the tallest mast in the world. 

    Nearly all the top racing superyachts have a playbook of maneuvers, which are ­updated each regatta so everyone on the crew knows where to be positioned for hoists, sets and drops. On Marie we had a five-­minute countdown to the kite drop that we rarely deviated from. 

    Pulling 1,600 square meters of spinnaker cloth from the water, with 40 of your friends on board, is not a winning move.

    Raritan Engineering has more information on macerating pumps, marine hardware, and marine water heaters.

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  • Marine Hot Water Heaters Experts Share Outboard Motor Painting Tips

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    Your Marine Hot Water Heaters Specialists Help You Take Good Care of Your Outboards

    Raritan Engineering Company your marine hot water heaters analysts would like to share with you these topics we thought would be of interest to you this month regarding outboard motor painting tips.

    Today, your marine hot water heaters experts know that many outboard motors are available in colors to complement the shade of your boat. Honda, Mercury and Suzuki, for example, all offer their outboards in at least two colors; Evinrude lets you add custom side plates and accents from a wide spectrum of color choices.

    There are also companies that paint motors. The Miami-based Outboard Paint Shop, for instance, will paint an outboard in the 250 to 400 hp range for $1,200.

    Yet there is a more economical, DIY option. The proprietary Quantum paint system from Engineered Marine Coatings (EMC2) utilizes a hybrid acrylic- polyester topcoat – a technology developed for the aerospace industry – to create an extremely durable and professional-looking finish.

    Disassemble and Wash

    Remove the cowl, the shroud from the midsection, and any plastic pieces or appliques that might interfere with the painting process. Remove the rubber seal around the bottom of the cowl and any other rubber grommets or gaskets that might interfere with painting exterior surfaces. 

    2. Prep and Mask

    Sand all surfaces to be painted with 350- to 400-grit sandpaper. Use a power sander on broad surfaces, but you might need to hand-sand hard-to-reach spots such as around the bracket and lower unit. 

    3. Paint the Parts

    Choose a windless day with low humidity and temperatures around 72 degrees. Protect the uncured finish from evening dew by starting early in the day or working in a covered area. Spray the dry surfaces with a medium coat of the Quantum 45-X-115 K adhesion promoter and let dry for five minutes. 

    4. Reassemble and Debug

    Allow the final coat to dry for 24 hours. Then remove all masking materials. Carefully reattach and reassemble all parts. If a bug or debris marred the finish while painting, wet-sand the spot with 1,500- to 2,000-grit wet sandpaper until the blemish is eliminated and the desired smoothness is achieved. 

    How Many Cans?

    Each Quantum 2K kit can be custom packed based on your motor size. It includes Quantum SR-002 Surface Prep/Clean, Quantum Adhesion Promoter, Quantum 2KA spray cans, rags, gloves, Scotch pad, tape and draping. 


    Your Marine Hot Water Heaters Professionals Equip You With the Skills You Need

    You can find more information as well as get assistance on marine ice makers at Raritan Engineering.

    Painting Outboard Parts

    First off, your marine ice makers know that it is best that you do not plan any outings for at least 2 weeks when undertaking this task. Initially, it will take some time, especially if you are going to try to repaint parts on the powerhead. 

    Keep in mind – Aerosol paint jobs are no where near as durable as a paint job done with quality paint from a gravity fed spray gun.

    With Aerosol Can Paint

    Here are the steps.

    Items you need:

    1. Quality primer (self etching), paint, and clear coat.
    2. clear workspace
    3. wet sandpaper – 400, 800, 1000 – 2000 (available at automotive shops)
    4. Quality Rubbing / Polishing compound (3M Perfect-it II) removes fines scratches
    5. Plenty of time and patience.

    Try to use a sanding block on flat surfaces and keep the pressure even. For other areas, you can obtain paint remover from local shops but it takes time to remove. It works great for those recessed areas, but it is messy and toxic.

    Raritan Engineering Company has more information on marine hot water heaters, marine ice makers, and any marine sanitation device.

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  • Marine Ice Makers Specialists Show You How to Find the Best Angle of Attack

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    Your Marine Ice Makers Professionals Describe the Easiest Way to Use Natural Forces to Your Advantage 

    Raritan Engineering Company your marine ice makers analysts would like to share with you these topics we thought would be of interest to you this month regarding how to find the best angle of attack while sailing.

    Your marine ice makers experts feel that there are many ways to describe the forces around sails – in fact, around any foil. One of the most straightforward ways is to split the forces into lift and drag. The lift force is, by definition, perpendicular to the apparent-wind direction; drag is parallel to it. The primary way to get more lift from a sail is to increase its angle of attack. More lift is more power.

    Two ways to increase a sail’s angle of attack: trim it, or turn the bow off the wind (fall off) without easing the sails. The most important thing to know about angle of attack is the greater it is – or to put this another way, the more the sail deflects the airflow – the greater will be the lift, up to a point.

    As discussed in a previous chapter the leading edge of the flat plate requires the wind to make an abrupt turn around it. Aft of the separation bubble, this abrupt turn causes the wind to change direction severely, which raises the likelihood that the boundary layer will separate from the foil. Correct camber provides a gentler turn. 

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    Your marine ice makers specialists understand that sail trim is, however, a balancing act. Too much camber also can present problems, as the flow has difficulty staying attached to a deeply curved section. With too much camber, the likelihood is that it will separate – the nice, even curve above becomes an abrupt hairpin – and the flow will depart prematurely from the sail.

    For sailors, the practical reality of this discussion is that creating lift is a cinch. All it requires is oversheeting the sails or sailing a course too low for the sail settings (both of which increase angle of attack), or sailing with sails that are too full (show too much camber) for the conditions. Unfortunately, sail trim is not so easy because its undesirable cohort – drag – offsets lift. Reducing drag, primarily because it is so difficult to see, is the tough part.

    The genoa’s luff telltales are rough indicators of where you are in terms of lift and drag, at least from the perspective of angle of attack. As we now know, this is most important in terms of sail trim. 

    The result is that the lift-to-drag ratio is lower. Keep increasing the angle of attack (trim the sails more or fall off the wind without easing them), and the boundary layer separates, and the total flow can stall. This can be seen in Diagram C with both telltales drooping.

    For example, in smooth water and medium air, if the main is trimmed such that its lift-to-drag ratio decreases, that loss could be more than offset by a higher angle of attack from the rudder, or from the fact that more of the total force created is turned into drive force. 

    Bear in mind that this discussion focuses on sailing upwind. When sailing very low downwind (high apparent-wind) angles, the name of the game is to increase drag or to stop the flow of wind. 

    Click here and see how Raritan Engineering always has more information on marine ice makers and all your marine supplies needs.

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  • Marine Sanitation Device Professionals Know the Importance of a Good Anchor


     

     


    Your Marine Sanitation Device Analysts Say That Quality Is Worth the Money 

    Raritan Engineering would love to share with you this week amazing information on how you can gain the needed knowledge in choosing the best anchor for your needs.

    Each time Practical Sailor conducts an anchor test, we get questions about the materials used in anchors, particularly stainless steel. Stainless steel is much less prone to unsightly and destructive oxidation than mild steel, even when it has been hot-dipped galvanized and protected by a heat-bonded zinc coating.

    Unfortunately, zinc is a relatively soft metal. As an anchor rubs and scrapes the bottom in its normal operation,the galvanized coating is damaged, mild steel uncovered, and oxidation begins. In many cases, however, rust can be a good friend, announcing to the skipper, with an undeniable bold red stain and flaking metal, that corrosion is taking place. 

    Even when shackle or swivel approaches failure, its surface patina may hardly change at all. The metal also tends to work-harden, and when submerged for long periods, suffers from oxygen starvation. Thus, its shiny appearance may have made it the diamond earring of anchor alternatives, but the same looks and assumed good quality, throughout the fatigue cycle, can present problems. 

    Design plays an important role in how well an anchor holds a vessel in place, and how well the anchor itself holds together. In essence, it’s a fairly simple structure, and it provides a good lesson in how loads migrate through a material and where stress accumulates. The shank, like the handle of a frying pan, transmits the energy into the main structure, and the junction between the handle and pan or shank and fluke is where a significant stress riser develops. Engineers know that stress escalates at the point where a flexing arm attaches to an immovable body.

    When a vessel is dancing to the thrum of a building gale, the surging loads imposed on the anchor shank vary in both intensity and angle, and when the fluke(s) of the anchor ends up wedged in a rocky outcrop or pinned in a coral pothole, the anchor’s shank and the fluke(s) themselves need to be rugged enough to handle loads imposed.


    Your Marine Sanitation Device Experts Help You Gain the Confidence to Make the Right Choice

    Your marine sanitation device specialists know that many bluewater veterans swear by U.S.-made galvanized mild steel shackles and chain, and agree that swivels, although a necessity for mooring pendants, should be omitted from anchor rodes. 

    How to choose the right anchor

    Until the 1930s, there was little choice when it came to purchasing an anchor, the Fisherman being just about the only type available. 

    There was no alternative to the Fisherman anchor until Yachting Monthly published Sir Geoffrey Ingram Taylor’s design for the CQR in 1934

    The Main Key attributes of a good anchor

    1. Materials

    Most anchors are galvanized steel

    Most anchors are steel, galvanized for corrosion resistance. The carbon content should be below 0.21% to ensure ductility at all likely temperatures.

    Aluminum is good for kedge anchors

    Aluminum and stainless steel anchors require either sophisticated alloying or clever design features, such as hollow shanks, to obtain sufficient strength. This makes them expensive. 

    2. Weight

    However, the excellent performance of various types of aluminum anchor, both in tests and in the real world, shows quite clearly that weight is not necessarily a prerequisite for good holding power. It is a truism that anchors are marketed by weight but they hold by their area. Most modern anchors have a lot more surface area than older types of the same weight.

    Learn more from Raritan Engineering about the importance of choosing the right marine sanitation devices for your needs.

    via Is Stainless Steel Really the Best Metal for Use in an Anchor?

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  • Marine Supplies Experts Suggest Icerette Model 87- The Best Marine Ice Maker On the Market

    Model-87-IceMaker

     


    Your Marine Supplies Professionals Make Your Ice Maker Search Easy

    Raritan Icerette Model 87

    How Amazing Are Our Ice Makers?

    Raritan’s Icemaker will withstand high humidity and extreme temperature changes when exposed on deck and still keep producing ice.

    Raritan utilizes the Embrako compressor in our Icemaker as its been proven to be extremely reliable in all types of marine environments, coming with a 5 yr limited warranty. 

    Easy Installation

    – No drain required makes it easy to install.
    – Requires a 1/4” outside diameter water line.
    – Includes flange.
    – 230 volt model available.

    Get Your Marine Ice Maker Today!

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  • Marine Hardware Specialists Help You Become a Great Superyacht Sailor

     

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    Your Marine Hardware Professionals Build Appreciation of the Marvel of Superyachts

    Raritan Engineering Company your marine hardware experts would like to share with you these topics we thought would be of interest to you this month regarding how to become a great superyacht sailor.

    Your marine hardware specialists know that it’s impossible to appreciate the marvel of a superyacht until you see one up close. It’s breathtaking to watch one charge by under full sails that are spoken of in acres rather than square feet.

    Composites, carbon rigs, 70-ton captive winches the size of small automobiles, and hydraulic advances have all contributed to the acceleration of superyacht racing. In lockstep have been the wardrobes, blends of best-available aramids and carbon. 

    What is the limit? As the guy who has ­delivered a few of the biggest superyacht sails ever made, Robbie Doyle has been asked this very question many times. “How big a sail can we build? It’s an open question,” he says. Take, for example, the 195-foot Perini Navi Perseus3. 

    Go to http://raritaneng.com/marine-hardware/ and see how you can find more information as well as get assistance on marine hardware at Raritan Engineering.

    Unfurled, says Zebny, is the first super­yacht its size to use in-boom furling with a square-top mainsail, which itself is new territory. Your marine hardware professionals know the challenge of stowing Unfurled’s massive head panel, with its gaff batten and big bits of hardware, was solved by the sailors. In collaboration with Southern Spars, the team developed a system that requires only two crew members to hook up or stow the headboard car. 

    By trouble, he means toppling nearly 200 feet of carbon craftsmanship, which is something boat captains don’t appreciate. “One thing to keep in mind with these monsters is keeping efficient sail plans,” says Doyle, who wrestles with owner demands for bigger sails. “So much of the boat becomes inefficient. 

    It’s also now standard procedure to be ­involved in a new build from the outset, says Zebny, taking into account how an owner really intends to sail the boat, what kind of inventory the full-time crew can manage, and making sure the deck layout fits the sails.

    Regatta organizers are getting better at putting like boats together on the racecourse, says Christensen, who works with Hasso Plattner’s 147-footer, Visione. Zebny says progress has been made at the shipyards, too, where hydraulic packages now allow the boats to be sailed more efficiently in stronger winds. “­Until the last five years, you couldn’t sail a new boat in 20 knots because the gearing wasn’t up to it,” he says. “Unfurled is huge and we often sail it around the course like a 40-footer - well, almost.”

    North Sails’ more durable 3Di cloth allows programs like Unfurled to have a single mainsail and only two jibs (“A big one and a little one,” says Zebny.). Doyle Sailmakers’ Stratis and ICE offerings were developed to address durability but also weight and practicality. 

    “In the old days, you’d have to have a ton of leech hollow on a 100 percent jib to support itself,” says Zebny. “Now we just build it with a straight leech, stick these battens on there, and it makes a better-performing sail.”

    One obstacle come race day, however, is deciding which jib to have on deck. Moving a half-ton brick of sail from below requires more than a bunch of big, strong men. On Unfurled, they use a halyard to extract what they need from the tender locker underneath the teak foredeck.

    “Big furling sails are now easily handled by two people instead of having a big bag on the deck that weighs 500 kilos and requires six people to deal with it,” says Zebny. Cable manufacturers also like the spool system, says Christensen, because the cables aren’t forced into tight-radius bends that result when furled sails are snaked into deck bags.

    Spinnaker snuffers are therefore the most reliable option, and C-Tech makes the most widely used inflatable units. “Typically, we start the day with the snuffer at the head of the sail and use the new zipper systems,” says Zebny. “[On Unfurled] we hoist the sail zipped, so the first set is a normal set. 

    That’s what gets the owner more ­value out of his boat, he adds, and keeps him coming back for more and possibly even going bigger and faster. Good or bad, says Doyle, the racing is more pro-driven than ever ­before, as is the sail-handling. 

    Click here and see how Raritan Engineering always has more information regarding marine hardware and any of your marine products needs.

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  • Marine Water Heaters Professionals Offer Free and Easy Mildew Growth Prevention


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    Your Marine Water Heater Analysts Help Defend Against Many Types of Mold

    Raritan Engineering Company your marine water heaters specialists would like to share with you this week some great information regarding free and easy mildew growth prevention tips.

    I’ve been growing several interesting varieties of mold and mildew at home. It is glamorous work, I know. While my wife, Theresa, disagrees, I know that you understand.

    This Practical Sailor project led me to our last test of mildew cleaners, and some helpful tips for keeping mildew at bay.

    Having been closely involved in our mildew cleaner test and the upcoming report on spray-on mildew “shields” that supposedly prevent mildew growth, I’m convinced that sprays can help fight mold, but these shouldn’t be your first weapon against it.

    The best way to fight mildew onboard is to keep it from ever starting in the first place. Prevention is your best defense. When storing your boat or leaving it closed up for an extended time, a few simple steps will help prevent mildew.

    Leave open all drawers, doors, and lockers to promote circulation. If covering the boat with a tarp, create ventilation between the tarp and the hull by hanging a few fenders between them. 

    At the dock, a home dehumidifier, a dehumidifying stick (like the Golden Rod, effectively a small heater), or even a light bulb positioned under a vent can help promote air circulation and moisture removal.


    Your Marine Water Heaters Experts Suggest Using Ventilation Products

    Ventilation products

    We’re big fans of cowl vents coupled with Dorade boxes (PS May 15, 1997) to let air in but keep water out. Your marine water heaters professionals know that a Dorade box is simply a water trap that employs a down-draft pipe offset laterally from the throat of the cowl vent. Vetus supplies a wide range of well-made cowl ventilators.

    Twelve-volt fans (PS April 2008) and solar-powered vents (PS May 1, 1993) also keep fresh air flowing in the cabin. The Hella Turbo fan outlasted three other popular models in PS’s 2000 cabin fan longevity test. It also was among the recommended fans in our 2008 test.

    Sails

    • Never stow sails when they are damp or salty as salt attracts moisture. (Fresh-water rinse salty sails.) Air them out regularly, especially after a rain.

    • Keep mildew-infected sails away from clean ones, and try to clean infected sails as quickly as possible. Stains are easier to treat when they are new.

    • Never use bleach on Kevlar or nylon as it will destroy the fibers. Washing these or Dacron sails in a chlorine-treated swimming pool will turn them brittle and yellow. 

    • Laminates are sure to grow fungus more readily than woven polyester most likely because the film is impermeable and moisture is not able to escape.

    Now, to see how that shower mold is growing . . .

    Visit us at Raritan Engineering Company and see how you can find more information and assistance regarding marine water heaters and other marine needs.

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