One of my systems would have suited perfectly, although Bobby used an Aries in those days. Servo-pendulum systems are capable of producing huge steering forces, which makes double rudder systems very powerful. Hydrovane began concluding agreements with organisations like World Cruising (ARC) and several event organisers in the US, presumably using event sponsorship as a way to gain (exclusive?) Sometimes the sailors are rescued and the story has a happy ending. So thanks a million itâs the best money I ever spent. But it is now apparent that is not to be; they both have their place. Our boat and two others had autopilot failures. A - Air is drawn in through the intake valve. Thank you for a very fine product. Presumably this has something to do with the common misapprehension about the loads transmitted to the hull by servo-pendulum systems. in mind my preferred choice was the WindPilot Pacific as it is lighter than both main competitors and has an excellent reputation. Aries and Hydrovane were the first two windvanes on the market. ; C - Air is compressed by decreasing volume. The Windpilot is very well made and good value. Hydrovane states that about 75% of the systems it has sold over the last ten years are installed in an off-centre position and there are many, many photos on its website showing units mounted well out to the side of the transom with the rudder visible at the water surface even with the boat stationary. The test-run was a down-wind sail in heavy seas along the North coast of Colombia. If you can have both, thatâs an ideal set up. Autopilots for bigger yachts are mainly electric or electric/hydraulic and steer a set compass course. ; E - Remaining traces of oil are removed in a final separator element, providing high quality air. I would like to finish this missive by mentioning an innocuous report that I regard as well worth a read: SV Faith – Ursula + Alexander Münchinger GER. When I realised that my ATLANTIK range was failing to keep pace with changing customer requirements, the logical response as I saw it was to change the product. Too much canvas aloft means weather helm and more work for the rudder: it’s like sailing with the brakes on and makes no more sense under self-steering than it does with a human hand at the controls. Some prospective bluewater cruisers leave a windvane steering system out of their plans entirely in the misguided belief that an autopilot will take care of everything for them. Even if the autopilot itself never fails, failures of many other devices can stop the flow of electricity and, in turn, render an autopilot useless. Long Live Hydrovane! After various efforts with trim tab systems, Blondie Hasler invented the servo pendulum windvane system in 1961. USE WITH HYDRAULIC STEERING She got us thru it all with minimal hand steering. That said, it remains the case that a simple auxiliary rudder system will never be able to match servo-pendulum systems in terms of force generated because it lacks the advantage of that long and powerful lever. It didn’t take long though for 33 feet to begin looking decidedly average â and designs were growing significantly wider as well as longer. Recovering marketing costs in a niche market poses a particular challenge because relatively few sales in a year means a relatively large share of the costs has to be borne by each buyer. Adjustable Vane Axis â Adjust sensitivity and responsiveness of vane, In 1986 Windpilot introduced their version (Pacific Plus). The monitor still steers through the boat's primary steering gear with the associated wear and tear and all those lines in the cockpit. The Hydrovane proved to be so far superior on all points of sailing that it was as if it had been made specifically for the Tradewind 35. Generally it will be necessary to reduce sail significantly to maintain satisfactory self-steering. Sorting Out Self-Steering Options. In this case two of the problem vanes, belonging to Cousot and Kopar, were Windpilot units, one was a Beaufort unit, belonging to Nabil Amra (who quit the race), and the fourth was a Hydrovane unit, belonging to Kevin Farebrother (who also quit the race). Some prospective bluewater sailors find themselves in two minds about a vanegear because they have potentially conflicting plans for the back of the boat. Hydrovane in action on Youtube: I shouldn’t be surprised about that really, as interesting experiences have a habit of finding their way to me. When it comes to simple, robust, reliable self-steering — especially in snarly weather — a mechanical windvane is hard to beat. Whatever conflicting financial interests there may be at play, however, it does the sailor no favours to focus on emergency rudder options at the expense of properly effective self-steering. 2424 Haywood Avenue, West Vancouver We did, however, tire of the cockpit being interfered with by the steering lines led from the pendulum system. Yes, Rudder is part of the unit and is in place and âReady to Goâ. www.selfsteer.com – Scanmar for Monitor, Autohelm and Saye’s Rig www.windpilot.com – Windpilot www.sea-feather.co.uk – Seafeather www.hydrovane.com – Hydrovane www.mactrashop.co.uk – Aries www.windvaneselfsteering.com – Mistervee www.selfsteering.com – … The power consumption of an electronic autopilot in big seas compounded over days is astronomical. The overwhelming majority of platforms are designed to be used by the crew, who surely place considerably more load on this particular part of the boat than a servo-pendulum system (as decades of first-hand experience would seem to confirm). The thing is, the way that servo-pendulum systems operate means that in fact the only load they transmit to the hull is their own weight plus the force required to move the wheel or tiller, which will generally add up to around 50 to 70 kg. A huge advantage for sail changes. According to the company website, the Hydrovane is suitable for use on multihulls subject to the same criteria that apply for monohulls (balanced boat, not too heavy, too twitchy or too taxing on the helm) but should ideally only be installed “at the end of a pontoon/hull”. I hope I have provided some food for thought here and will leave it to you, the reader, to draw your own conclusions. Hydrovane has one great advantage: it can be used as an emergency steering if the main steering system fails. The smaller boats beat the larger boat by a considerable margin! Movement of the vane rotates the in-water servo blade (also called paddle or oar). Provided the boat and sails are reasonably configured and trimmed, a properly effective windvane steering system should be just that: properly effective. â¨Peter Foerthmann. V vane only, on board a 5m/16ft Van de H vane only, QME windvane. And it doesnât have to be a choice between a windvane or an autopilot. Simple: it has taken time and a lot of back-and-forth with knowledgeable sailors for me to feel confident that my early suspicions have some merit. Why? The vertical or V vane pivots about a vertical axis. I discuss several more from my back catalogue in my new article on copy-cat windvane steering systems, a little treat I have been saving up for some time and a powerful demonstration of how we all (all of us in the mechanical self-steering business anyway) now truly do live in a global village. There is something the matter with that picture â running engines to keep sailing! If it cannot hold a straight course in these circumstances, the brochure continues, the steering cylinders must not be properly sealed. Just wanted to drop you a note to let you know we made it to Nuku Hiva from PV. ‘James’ came through like a champ. I am insistent in all my dealings with the worldwide cruising community that a properly effective windvane steering system is a non-negotiable requirement. The biggest differences between the two we could find where the type of material used and the the mounting system. Production was terminated in 1981; failures due to the far greater loads on the system were probably the cause. It is not a straighter course, but over long distances is much more efficient and surprisingly faster. Eventually the case against me was thrown out, but the proceedings forced me to re-evaluate everything about my dealings with the press and the media and with the other businesses sharing my sector. It is not such an easy decision! On longer passages itâs impossible to constantly trim the sails and autopilots can suffer severely from that poor sail trim. The GGR organisers know that and so do their sailors, most â if not all â of whom will be needing to buy equipment that can be had from only a few sources. Having had this close encounter with the business, I was very interested to see how Hydrovane would develop over the years to come. Thread starter witchway; Start date 12 Feb 2007; 12 Feb 2007 #1 W. witchway New member. This means more comfortable, faster and safer passages. AUXILIARY-RUDDER-SYSTEMS use a separate rudder that receives both its steering signal and its steering force from a windvane and are capable of steering a boat independently with no connection to the main rudder. Not inherent. Since then some other servo pendulum manufacturers have developed their auxiliary upgrades: Fleming (Australia), South Atlantic (Argentina), Autohelm (USA), Sailomat (USA â produced only for a few years). TAPIO………………WINDPILOT………NEW………….OK.. after a week settling in; UKU…………………HYDROVANE…….NEW………….OK; 6 Hydrovane all working fine! My books on the subject have been translated into six languages and downloaded millions of times. At the end I am happy I did install the Hydrovane, especially that I saw on YouTube that at the same time 2 sailboats almost the same size as mine with the same problem. So, a company pays an amount of money (sponsorship!) The need to provide compelled me to respond: my ATLANTIC series was not going to have a happy time with anything over 35 feet. The boat knows when it is holding course. And more readily returns to that âon courseâ position when the Hydrovane is making course adjustments. SERVO-PENDULUM-SYSTEMSuse the water flowing past the boat to generate servo forces that are transmitted to the main rudder via a system of lines. In particular its ability to steer safely on a dead run even when surfing is incredible, as is its light weather performance. One event that requires its participants to have a fully functional emergency rudder is the GOLDEN GLOBE RACE, which also happens to have a company that supplies an emergency rudder solution as its principal sponsor. No direct experience with the HydroVane. NKE in France led the way with a system that racers use. Their great leverage enables systems of this type to cope comfortably with main rudders of almost any size, so it is more likely to be the difficulty of transferring the force generated effectively and reliably to the main rudder (either through the boat’s wheel or tiller or through the emergency tiller) that rules them out in a particular situation. The part about improperly sealed âsteering cylindersâ must, I think, refer to the hydraulic cylinders attached to the quadrant, which can suffer from leaky seals that allow oil to circulate even when the rudder is supposed to be stationary. It’s funny ’cause it’s true! Our autopilot failed a third of the way but we had âJaneâ our trusty Hydrovane. However, if the passage is longer than a few hours, the Hydrovane will be steering. Some have a retrofit rudder to be installed in an emergency. Further than that, it is a complete, independent steering system. Collisions between sailing boats and container ships, as immortalised in the cartoons of Mike Peyton, prey on the mind of every sailor. We have sailed with mechanical self steering systems since 1987 and have accumulated in excess of 42,000 sea miles exclusively using vane steering. 2 ARIES both working fine. Horror stories appear time and again in the yachting magazines, and in almost all of them the sailing boat ends up with the fish. When sailing offshore, the only time we use the electric autopilot is during a sail change. Rudder is part of the unit. Your email address will not be published. The Hydrovane (an Auxiliary Rudder Windvane system) is very different mechanically and offers additional features than all servo systems, but a comparison is still possible. Similar systems have been produced for years by perhaps a dozen other companies. The same German brochure says the only requirement if you want to use a Hydrovane with hydraulic steering is that the yacht be able to hold a straight course with the steering locked. H vane yaw damping This is provided by a bevel gear linkage with 2:1 stepdown ratio; automatic, yaw damping, so oversteering is possible. It is an absolute pleasure to sail with the Hydrovane! It is also worth bearing in mind that the performance of auxiliary rudder systems tails off gradually as boat size increases and that the upper limits of their effectiveness can be extended with careful trim, pre-emptive reefing and â needless to say â an easily steered form below the waterline (a long keel, in other words). The crew had to abandon the the ships and left both boats in the middle of the Atlantic and lost everything. Reliant on other parts of main steering system. Once moved from dead ahead position, the flow of the water pushes the blade to one side with force. Those are hydraulic systems with multiple boat and wind sensors that are fed to a computer that analyzes the data. Have fitted up to 60,000 lbs / 27,000 kgs successfully, Varies â some over 40,000 lbs/18,000 kgs, Large vane and sophisticated linkage to semi-balanced rudder, Yes, encouraged â over 75% of installations are offset, Generally, No â small offsets considered but always discouraged for safety reasons, Two Brackets with flexibility in positioning, Multiple arms and blocks Another question is about the fixation on the stern, because even here several tipes are existing. My initial correspondence with the brand’s new owner, John Curry, gave cause for optimism, although it soon became apparent that plans for the basic product design extended to nothing more than a few tweaks here and there and that the product would continue to be manufactured by the safe hands of the long-time supplier/manufacturer in England. I can appreciate that there is a certain logic to this approach in marketing terms, but where is the practical logic in a windvane self-steering company trying to persuade potential customers to put emergency rudder performance ahead of self-steering performance in their purchasing decision? V vane yaw damping This provided by limited rotational deflection of vane, maximum = angle of the deviation from course. This means that the boatâs course meanders with the wind. An autopilot is clueless about the direction of the wind (unless set up with a wind sensor). The blade sports a couple of rows of shark teeth marks after a tussle in the Pacific. All boats â Only limitation is the need to be amidships or close to it, Have fitted up to 60,000 lbs / 27,000 kgs successfully, Windpilot claims up to 66,000 lbs / 30,000 kgs, No - strong need to locate amidships or close to it, Simple shaft and drive unit with vane and rudder attachments, More gangly with two separate appendages in the water: Rudder & Servo Blade, Improved â the main rudder fixed provides greatest yaw dampening, Easy â precise worm gear control through remote line control, 1. Windy is a strong, efficient, and reliable shipmate. Who wants to run the engine or generator 2 to 5 hours per day to keep the autopilot going? An energy neutral boat provides much piece of mind, if you can achieve it. Iâm now in the Galapagos Islands and the Hydrovane has been absolutely rock solid so far. Has it really escaped the notice of the experts that the only place to find symmetrical flows on a cat is in the centre and that fitting a vanegear close to the edge of one hull will expose it to the thoroughly confounding effects of the laminar flow that dominates in this location?
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