I get back pain from sitting in other kayaks, but never in this one, even after eight hours offshore. It’s really good for your back.
You sit in it like on the saddle of a jet ski, but sometimes I sit sideways, with two feet in one hull.
Casting and sitting sideways
South Florida Kayak Fishing Club Dania Beach FL 4-29-2016
My biggest tuna ever
I store my fishing tackle in boxes inside the hulls.
I outfitted my Wavewalk 500 kayak with a 2.5 hp Suzuki outboard motor. I was one of the first guys with a motor in the South Florida Fishing Club. Sometimes I fish almost 3 miles out with my motorized Wavewalk 500, so I had to put adjustable outriggers on it for more stability. Before I added the outriggers I flipped it about 60 yards from the pier, and it was not cool, so I don’t recommend that you drive it offshore and in the currents without stabilizers.
These outriggers fit the W500 and W700 series, as well as canoes, and many common kayaks.
Wavewalk® Sailing Outriggers provide more stability than most outriggers, thanks to the combination of larger size floats and longer arms (crossbar).
Other advantages are their light weight (10 lbs total), ease of installation, and their versatility, as their inflatable floats can also be attached directly to the boat’s main hull, without any intermediary rigid structure.
Sailing Outriggers Product Info
Width (side to side): 6′ (180 cm)
Outriggers’ Length (front to back): 5’4″ (162 cm)
Total Weight: 10 lbs (4.5 kg)
Volume: 2 x 8.65 gallons (2 x 32 liter)
Positive Buoyancy: 2 x 70 lbs (2 x 32 kg)
Structure: 3/4″ anodized aluminum bars
Inflatable Tubes: 30 MIL HD PVC
Made in USA
Wavewalk® XL Outriggers
Shipping: $90. in the continental US (48 states), $100 to addresses in Canada and Alaska.
this product has been discontinued
The crossbar can be easily attached to a W500, W700 and any canoe that features a gunwale. Drilling is required. The crossbar can be attached to some kayaks too, and if this is not possible, straps can do the job. The crossbar features wing bolts – no tools required when attaching / detaching during regular operation.
Each outrigger is quickly and easily attached to the crossbar by means of one eye bolt. No tools required.
The tubes can be easily inflated / deflated via a large-size mouth valve. No pump required. The inflatable tubes are attached to the aluminum bars with carabiners, for quick and easy attach / detach.
Why use outriggers?
OUTRIGGERS Main USAGE and POSITION
Outriggers main role is to provide secondary stability, namely help in preventing the boat from capsizing. If you’re counting on a pair outriggers as stabilizers, namely to provide primary stability when the boat is level (I.E. not tilting sideways), you’re probably not using them correctly, or not using the right boat, or both.
When outriggers touch the water, they generate drag that slows down the boat. Therefore, if possible, the outriggers should be mounted high enough, in a way that prevents them from touching the water unless the boat tilts sideways dangerously, so much that the user and passengers could lose balance and the boat itself capsize.
How high above the water should you mount the outriggers?
The height depends on factors such as your skill level as a boater, the size of your sailing rig, and how reasonably confident you feel about being able to handle the situation before the outrigger touches the water and starts supporting the boat.
Outriggers for fishing kayaks and canoes?
If you fish out of a canoe or a kayak, the last thing you want is outriggers, because sooner than later they’ll snag your lines and provide great opportunities for the fish you hooked to get away.
On top of this, most outriggers out there are too small and feature arms (crossbar) that are too short. These outriggers offer some initial (primary) stability, namely an impression of being stable, but they are not effective in supporting your weight in case the canoe or kayak tilts strongly on its side. In other words, the secondary stability these outriggers offer is insufficient in more difficult situations, and that’s when they’re mostly needed.
Another reason why canoe and kayak outriggers are not particularly effective is that they’re attached to the boat’s rear section, and therefore add stability mostly in that area, while having very little effect the middle section of the boat, and no effect all as far as stuff that happens in its front section. And as everyone knows, stuff happens…
For these reasons, we do not recommend using outriggers for fishing kayaks and canoes.
Outriggers for paddling?
Outriggers may add stability, but they also generate quite a bit of drag, and if you need to paddle over long distances you may find that the added outriggers make you too tired to enjoy your trip.
What about outriggers for motorized kayaks and canoes?
Not a great idea, unless the outriggers you use offer a sufficient amount of buoyancy, and most of them don’t. Again, thinking you’re stable isn’t the equivalent of being stable in real-world terms, namely as soon as you lose balance and the outrigger has to support your weight.
If you want to motorize your canoe or kayak, get a pair of big outriggers. This is especially true if you use a powerful outboard gas motor, as those are not as forgiving as weak electric trolling motors can be.
Outriggers for sailing
Practically speaking, if you want to sail a canoe or a kayak, you must compensate for these boats’ deficient stability (and compensate for their other deficiencies by other means*).
Sailing a canoe or a kayak with a rig featuring a good size sail (say over 35 square feet) exposes you to sudden gusts, and to capsizing, and that’s where outriggers are a must-have.
But not all outriggers were created equal, and the bigger the outriggers the better stability they deliver. And when it comes to stability, there’s no such thing as “too stable”. If you want to put the odds on your side (you do!), you should get large-size outriggers.
Boats from the Wavewalk® 500 and 700 series are more stable than any canoe or kayak out there, which is one of the reasons why you can motorize them more effectively, but sailing is different: If you’re planning to use a good size sail with your W, you should consider outfitting it with outriggers, and attach them as closely as possible to the mast, namely in the front section of the boat, where they would be more effective.
* Canoes and kayaks track poorly, which is why they require a leeboard to reduce downwind drift, and a rudder to allow for tacking and tracking when they’re sailed. Wavewalk® kayaks and boats track very well, which is why you may sail them without a leeboard and a rudder, but only up to a certain point determined by your sailing skills, sail size, and wind power.
Some basic practical advice about how to rig you kayak for fishing
Contrarily to you might have heard, there is no such thing as perfect rigging for a fishing kayak, and the reason for it is that kayak anglers differ by their personal needs, fishing style, fish species they go after, etc.
Having said that, there are still many opportunities for you to make mistakes, and this is why we generally recommend to go about these things slowly and carefully, without rushing into particular solutions unless you know there’s a good chance that they’d work well for you.
Practically, this means it can be impossible for you to tell in advance exactly what type of rod holders would benefit you the most, and whether you need this type of anchor or another. Same is true for positioning the rod holders, what kind of paddle holders you need, and more.
As a rule, if you fish in saltwater you’d better try to keep your fishing rods dry, which means that either you’ll store them inside the hull for when you pass through the surf, or use tall deck mounted rod holders in the stern. Some deck mounted rod holders have a long leg, which adds distance between your fishing rod and the corrosive sea water.
Tube rod holders are easier to use, because you just stick your fishing rod in, and take it out instantly when you need to. However, rod holders equipped with a latch would better secure your fishing rod in its place.
Obviously, if you’re fly fishing you may not need a rod holder at all, but you do want one, it should be of a type that fits fly rods.
As far as positioning the rod holders on your kayak’s deck, our only advice is to take your kayak out and fish from it a number of times before you decide on a new fishing rod. You’d need to make sure that neither fishing rod nor line interfere with your paddling under any circumstance, including when you use your kayak for trolling.
You can’t use screws to attach a rod holder, or any other object to your kayak’s deck. The reason for it is that the plastic isn’t thick enough to secure a screw in its place. The alternatives are either using bolts with nuts, or rivets. Bolts have more initial grip than rivets, but they lose it with time, since your kayak is made from polyethylene, which is a relatively soft plastic resin.
Remember: Deck mounted rod holders are easy to install, while flush mounted rod holders require that you make a hole in your kayak’s deck, and that hole should be of a certain size and shape. Making such hole isn’t necessarily easy for a beginner.
As for paddle holders, the problem becomes much more complicated: Some kayak anglers insist on using paddle holders that are silent, and that means using paddle holders made from foam. Other kayak anglers must make sure they don’t lose their paddle, because they fish i deep water, and far from shore. This means they must use paddle clips of some kind, or a bungee and hook to secure the paddle in its place.
Some kayak anglers like to drop their paddle in front of them while they rush to grab a rod that shows that a fish is pulling on its line, or if they want to make a fast cast because they spotted a fish. Others kayak anglers want to drop their paddle on their kayak’s side, in order to allow them more freedom of movement while they cast a line, reel a fish in, and land it.
Again, after fishing a few times you’ll know more about the type of paddle holders, or clips that would work better for you.
Anchors differ by their weight and form: Some have more grip than others, but it doesn’t necessarily mean they’re better, because an anchor with too much grip might get entangled in rocks or roots, and if you don’t manage to release it you’ll have to cut its line and part from it.
As a rule, kayak anchors should weigh between 1.5 lbs and 5 lbs. The heavier anchors are for moving water, such as streams or the ocean, and the lighter anchors are for ponds, small lakes and slow moving rivers.
Here too, you can add more functionality at a price of adding complexity: Anchor pulleys (vertical) and anchor trolleys (horizontal) may serve you well if they fit some specific need, but they could just make things harder for you if you don’t need them.
And what about a milk crate? What seemed to be an obvious storage solution in old fashion sit-in and SOT fishing kayaks is no longer needed in the W500 Wavewalk kayaks, simply because this new generation of fishing kayaks offer so much internal, accessible and dry storage space, as well as a lot of deck space, which make the milk crate redundant.
Should you add a seat to your kayak, and what type? The answer to this question is rather simple: If you happen to own a sit-in or sit-on-top kayak (SOT), you must outfit it with a seat (and footrests, in case those are not molded-in). No kayak seat may offer what it promises, that is a comfortable ride, and the reason for it is explained in this article about kayak ergonomics »
If you’re about to get your first W-kayak, don’t hurry to outfit it with any kind of seat, because you’re likely not to need it at all, as most W kayak owners have found. Just take your time to get used to the riding position, sitting, and standing, and sooner or later you’re going to forget about your seat project.
Rudders and kayaks – an unhappy marriage… Aboriginal kayaks were not equipped with rudders, because the people who crafted and paddled them were supreme paddlers, who spent their childhood paddling. Unless you fit this description, you’re likely to need a rudder for your sit-in or SOT kayak, because in addition to your own relatively skill level, these boats track very poorly, because their design depart greatly from the sleek proportions of Inuit kayaks.
A rudder is a pain to activate, and requires your constant attention. It also has a nasty tendency to harvest seaweed, and get stuck in rocks, roots and other underwater objects. And if you’re planning long trips, you should be aware of the fact that a rudder would slow your kayak down by an average of 10%.
Luckily, W-kayaks do not require rudders at all. Since the first W kayak appeared in 2004, only one W kayaker installed a rudder in his W kayak, and that’s basically because he sails it. No other W kayak paddler or angler has added a rudder to their W kayak, simply because no one saw any reason to do so.
W kayaks track like no other kayak, even under strong wind.
Outriggers – Yes, no, what type, and how many? There is no need for you to add outriggers to a W kayak, unless you’re planning to go at very high speed, using a powerful outboard gas engine, or a big and powerful sailing rig. A normal, small electric trolling motor does not necessitate you add outriggers to your W kayak.
W kayaks are stable enough to go in moving water, as well as enable you to paddle and fish standing up in confidence and safety that you won’t find in any other kayak – including those who have outriggers.
If you decide to increase your W-kayak’s stability, remember you don’t necessarily need a pair of outriggers to stabilize it, and in many cases a single, large size outrigger would suffice.
What about a motor? It’s possible to add an outboard gas engine to a W kayak, but in case you’re interested in doing so, you must take into account adding flotation as well, and the same is true for an electric motor.
As a rule of thumb, we would advise patience and cautiousness with any motorizing project. To begin with, you may ask yourself “do I really need this thing?” – Try to answer this question after using your new W-kayak in a human powered mode. You may reach the conclusion that your W kayak is fast enough, easy to paddle, and takes you where you want to go – and back…
Electric trolling motors seem perfect, but they add weight and complexity to your W-kayak, and may not be worth the trouble after all.
Read more about motorizing your kayak »
The purpose of this article is to elucidate the general principles of kayak stability, and to explain what enabled us create the world’s most stable kayak for fishing and paddling, based on the invention described in US utility patent number 6871608 entitled ‘Twin Hull Personal Watercraft’.
NEW: The Wavewalk S4, the world’s most stable kayak and portable boat
Before going further, we recommend that you watch these two short demo movies:
1. Boat-like, absolute stability offered by the W700 series:
2. Before the W700 showed up, the W500 was the world’s most stable kayak :
WHAT IS STABILITY?
Stability is defined as resistance to change, deterioration, or displacement, and it is synonym to reliability and dependability. In naval terms it means the ability of a watercraft to maintain equilibrium or resume its original, upright position after tilting as a result of the action of waves, wind, or passengers.
This article discusses lateral stability and not directional stability namely tracking, which is discussed in other articles on this website.
WHY IS LATERAL STABILITY SO IMPORTANT?
Lateral stability is a key factor in kayaking and kayak fishing since it enables prevention of accidents as well as increases the well being of kayakers and kayak fishermen.
This article explains the basic terms used in kayak design in the context of stability, and how the patented W kayak offers a degree of lateral stability previously thought to be unattainable in kayaks.
Before going further the author of this article would like to stress that in his opinion the idea of relying on the kayaker’s skills in performing the ‘Eskimo Roll’ as a primary resource in safety terms has largely failed since the overwhelming majority of people who paddle kayaks in recent decades has ignored it, and increasingly so. The reason for this is that rolling is basically a method of recovery and not a means of
prevention. This explains why most manufacturers and kayakers apply common sense and prefer to prevent accidents rather than focus on unreliable recovery techniques.
PRIMARY (INITIAL) AND SECONDARY STABILITY
Primary (Initial) stability refers to what the kayak feels like when used in flat water – Does the kayak convey a basic sense of ease and confidence as far as its stability goes?
Secondary stability refers to how easy it is to stabilize and control the kayak once it’s already heeled, or generally speaking in adverse conditions where it is either constantly and/or suddenly being tilted on its side – either because of an external force or because of something the kayaker did.
Both primary and secondary stability are important but while primary stability relates mainly to how the kayak passengers feels, secondary stability is what mostly affects their safety and performance in paddling and fishing.
Any further discussion about these terms would be futile without determining who’s inside the boat, since in most cases the passenger weighs several times more than the kayak itself, and he/she is the key factor that affects the way the boat reacts to destabilizing forces, whether external or internal.
Flat water racing kayaks can be as 18″ or 19″ narrow, while some fishing kayaks have a beam that’s over 40″. The first are designed for use by highly skilled and relatively small kayakers that can’t stabilize such kayaks without keeping their paddle in the water, while the latter are required to offer good stability mostly to bigger and less skilled paddlers that occasionally happen to be fighting big and strong fish, and often stand up in their kayak when paddling and fishing if they happen to be using W fishing kayaks.
Therefore,primary stability has much to do with comfort and secondary stability is what helps you from getting your kayak overturned in real life conditions, whether you’re surfing with it in five foot waves or fighting a big and powerful fish.
HOW TO MAXIMIZE KAYAK STABILITY?
1. What works best
The most effective method is applied in the patented W kayaks, and it consists of minimizing the destabilizing effect of the kayaker’s weight on the kayak in traditional (monohull) kayaks, and making use of this weight and other attributes in W kayaks. In order for this method to be effective this weight needs to be applied as low as possible, preferably much lower than the waterline, that is below the surface.
In traditional, monohull, sit-in kayaks the designer who wants to apply this method would try to lower the kayaker’s center of gravity (CG) by designing a deeper hull and placing the kayaker’s lowest parts as closely as possible to the bottom of the kayak.
In this case the designer’s efforts will be limited by the fact that traditional kayaks must have a shallow draft or else they won’t offer sufficient free board, and by the modern kayaker’s need for a padded seat, which places him/her at about a couple of inches distance higher than the hull’s lowest point.
This approach is mostly passive and regards the kayaker as a load having certain physical properties such as height, width and weight.
Applying this method of stabilization in sit-on-top (SOT) kayaks, which have gained roughly one third of the kayak market today is not possible because the SOT kayaker must sit several inches above waterline in order to enable water to drain down from the deck through the scupper holes, and try to prevent the deck from being often flooded by water coming from below through those holes.
The W kayak is not restricted with issues of free board and draft, and it enables the kayaker to apply his own weight directly to the lowest point of each hull through his feet, especially in the standing or riding positions (see user manual) where the legs carry most of the weight. This stabilizing method works less effectively in the sitting position, which is also less effective ergonomically and biomechanically – similarly to the traditional sitting position in kayaks.
This approach in W kayaks takes into account the kayaker’s physical attributes such as size and weight, as well as his/her physiological attributes namely his/her natural propensity and obvious capability to balance himself/herself naturally through the use of their legs, feet etc.
Wavewalk kayaks and boats feature a saddle seat that’s similar to the saddles of personal watercraft (PWC), all-terrain vehicles, snowmobiles and motorbikes. This high-performance saddle enables the rider to benefit from maximal balancing capabilities, in a natural and intuitive way, while causing no back pain at all.
One Simple Question You Must Ask Yourself:
For a clearer understanding of this point we recommend that the readers ask themselves the following question: -“Would I consider sitting in the traditional, L kayaking position when surfing, riding a horse, riding a snowmobile, an all-terrain vehicle (ATV), a jet ski etc.?”
The answer would be “Never!“, naturally, and this is because all these sporting activities require active and efficient balancing, which is best achieved through the use of our legs, and for this purpose the L kayaking position is worthless.
This above image shows a frontal view of a W500 Kayak and its 4″ (10 cm) draft when loaded with a 200 lb (90 kg) passenger. The red arrows show where the kayakers apply their weight, with their feet positioned and acting at the lowest point in each hull’s bottom – in this case it’s case 4 inches below waterline.
2. The traditional approach: A larger kayak, XL, XXL etc.
The most common solution for increasing kayak stability is widening its beam, although the wider the kayak the less efficient it is for paddling. Those extra wide fishing kayaks are practically impossible to paddle to any reasonable distance.
Improving initial lateral stability is achieved by placing maximum buoyancy as far as possible from the kayak’s longitudinal axis. In monohull kayaks (both regular and ‘tunnel’ hulled), this is achieved through a wider beam, but even the widest monohull kayak still has most of its buoyancy placed along its longitudinal axis – as shown in Figure 2, where this buoyancy is wasted as far as contribution to stability is concerned:
1. Monohull 2. W500 Twinhull
This figure shows a monohull kayak (left) and a new, W500 kayak (right) of identical length and width – Both kayaks are viewed from the bottom. The vertical, interrupted lines represent the center line of each of the two kayak forms.
The white colored areas represent those buoyant parts in the kayak that are sufficiently distant from its longitudinal axis to effectively contribute to its stability.
Although the monohull kayak on the left is wide for its length, the white areas in it still make just a small part of its overall volume. In contrast, the white areas in the W kayak on the right represent 100% of its total volume, and they are several times bigger than the white areas in the traditional kayak.
In sum, all monohull kayak designs (SIK, SOT and Tunnel hull) use just a small part of their buoyancy for effective stabilization, while the W design makes use of all its buoyancy for this purpose.
This is how the Wavewalk™ kayak is capable of offering its unrivaled initial stability and some of its legendary secondary stability.
3. Hard Chines – A Partial, Limited Assistance
Another common solution for increasing lateral stability is through minimizing the kayak’s propensity for rolling and overturning by increasing resistance to rotary motion: This can be achieved by giving the kayak a form that generates resistance from the water through the need to displace water when the kayak is tilting on its way to roll. This method is useful mainly in dealing with primary stability.
Figure 3: Comparison Of Three Kayaks’ Cross Sections
A B C
Kayak A (Left): The bottom part of this traditional kayak’s cross section is round, and such a kayak would be called ’round bottom’ (think of a virtual wheel, or a barrel). Such kayak offers practically no resistance to rotary motion, and therefore is particularly unstable.
Kayak B (Middle): The bottom part of this traditional kayak’s cross section is angular, and such a kayak would be described as having ‘hard chines’. The chine is the nautical term for the line where the side and bottom of the hull intersect. Such
kayak would have to displace some water when in lateral rotary motion and thus offer more resistance than kayak A, and therefore would be more stable than kayak A.
Kayak C is a W Kayak (Right): The bottom part of this kayak must displace big quantities of water when heeling (tilting) and forced into rotary motion, and thus it offers maximal resistance to rotary forces.
A tunnel hull is a name given to a monohull with usually one ‘tunnel’ going along its longitudinal axis – from bow to stern. The tunnel is submerged, including its ‘ceiling’ (top side). Tunnel hulls have been in use since the late part of the 1870s, and the concept has already been implemented and tested in various canoe and kayak designs over the years.
Figure 4: Cross Sections of Regular and Tunnel Monohulls
Regular Mono Hull Tunnel Mono Hull
Tunnel hull kayaks are not stabler than other monohull kayak hulls (I.E. common SIK and SOT) of similar size and proportions, as will be explained here.
A tunnel hull kayak is another form of monohull (I.E. single hull) kayak – It is not a multihull kayak (see figure 2), so unlike a multihull, the tunnel hull does not distribute more buoyancy on its external sides than a regular monohull does (see figure 2). In other words, most of the tunneled hull’s buoyancy is wasted when it comes to using it to increase lateral stability, which is also the problem in other monohull designs (E.G. SIK and SOT).
It’s easy to see that with its sides considerably less buoyant than the sides of a multihull kayak a tunnel hull kayak cannot possibly be as stable.
Primary (Initial) and Secondary Stability in Tunnel Hulls
1. Primary (Initial) Stability:
If the monohull kayak’s tunnel is made deep and wide enough, and its vertical sides have the right form (see example in figure 4) they can act as additional ‘hard chines’ and thus add some initial resistance to rotational motion. This is far from being comparable to such effect in a catamaran kayak because the tunnel’s sides are shorter than the boat’s overall length while in a catamaran kayak (E.G. W kayak) the hulls’ length is equal to the boat’s overall length.
In stability terms it means that when going on flat water, certain tunnel hulled kayaks could feel more stable than comparable common monohull kayaks, that is offer a little more primary (initial) stability than a traditional SIK or SOT design. However, this potential advantage is likely not to be perceptible since it would be offset by the tunnel hull’s deficiency in buoyancy.
2. Secondary Stability:
A tunnel hull kayak may not provide additional stability for significant weight displacement of its passengers, and it wouldn’t be useful in moving water, waves and other adverse conditions: The secondary stability of a tunnel hull kayak does not exceed that of a regular monohull kayak of the same size and proportions, I.E. it’s considerably less stable than a multihull kayak.
Ergonomics as a stability factor in small boats
In a tunnel hull kayak the paddler or fisherman sits with their legs stretched forward and the trunk only a few inches higher than the ankles. This position hardly differs from the notoriously non ergonomic L kayaking position, and therefore hardly offers any improvement as far as the ability to use the legs for balancing, control and power generation while it still forces the passenger to rely on a back rest for support, consequently causing fatigue and discomfort, which are additional dis-balancing factors.
What can a tunnel really do to make a kayak better?
Incorporating a tunnel in a monohull design can be an effective means to improve tracking, as the tunnel enables water to flow in a straight line (I.E. not deflected or ‘curved’) along the hull, in parallel to the direction of the boat. This can be helpful in very wide monohull canoes and kayaks (E.G.fishing kayaks) that track poorly. However, similarly to a rudder, the tunnel has a negative effect on speed.
In motorized boats the tunnel can help the hull plane but this is irrelevant in low speed boats, especially human powered ones such as canoes and kayaks, which are the slowest.
‘What if’ – a quick reality check
Introducing a tunnel in a monohull kayak places the passengers higher than in a regular monohull kayak without having them benefit either from significant increase in stability or significant improvement in their paddling or fishing position.
If the tunnel hull kayak design offered any real advantage in terms of stability it would enable producing narrower (I.E. faster) yet stabler monohull canoes and kayaks. Since in reality the tunnel does not produce such effect the various tunnel hull canoes, kayaks and hybrids are among the widest kayak designs on the market.
In comparison, the W kayak design offers both increased initial and secondary stability as well as improved ergonomics resulting in Hyper Stability: The ability to perform things that are impossible with any other
form of kayak, and an overall better user experience than that offered by any other kayak, including the widest and most stable ones, and kayak outfitted with outriggers. Such Hyper Stability is currently achieved with a hull that’s only 29″ wide, which is the width of some touring kayaks.
Food For Thought About Truth In Advertising
Well, it’s more of a snack really, but the following anecdote may shed some light on this subject from a different angle – that of ‘marketing hype’:
The tunnel hull design for small, paddle powered watercraft has gained some new life in recent years with one company that promotes it quite energetically.
We found that company’s website describing the tunnel hull as being ‘extraordinarily stable for a single hull boat’, while the same website claims that another small watercraft that company offers ‘incorporates a V hull design to provide stability…’
It doesn’t take a boat designer to realize intuitively that a kayak hull whose cross section is shaped like a deep V is in fact unstable, and the only reason one would incorporate such a form into a hull design is to try and improve its tracking capability.
More Food For Thought About Truth In Advertising
About Add-On Kayak Outriggers and Integrated Outriggers
Advertisers often cross the line between fact and fiction, and sometimes they cross the line between true and false. For example, the owner of a company who makes a fishing kayak that features outriggers that fold-in at its rear has claimed on a promotional video that his product (quote) : “…offers the equivalence in stability of an eight foot wide boat” (I.E. it’s as stable as a goo-size bass boat…)
Such claim is so blatantly disconnected from reality that anyone can easily understand that it’s false. But generally, crafty marketing hype is everywhere, and too many people fall for it, and then fall out of their kayak.
What is the effect of small outriggers attached to the kayak’s stern?
Generally, small outriggers offer some initial stability but too little secondary stability. This means they give the kayak user some sense of security on flat water and when the kayak is not tilting on its side, but this sense of security is misleading, since a small outrigger is not sufficiently buoyant to support the heavy weight applied on it when the kayak is tilted on its side, and therefore such outrigger may not prevent an accident.
Practically speaking, as soon as the kayak user seriously loses balance, for example in case they’re attempting to stand up, or if the kayak is hit by a motorboat’s wake, they cannot rely on extra lateral stability that’s enough to prevent their kayak from tilting further. This problem is particularly acute in SOT kayaks, since their user is already seated or attempting to stand on a deck that’s several inches above waterline, and therefore they’re insecure and less stable to begin with.
The folding outriggers in that fallacious promotional video are integrated with the hull itself, and therefore offer less stability than outriggers added on the kayak’s sides.
Why is that? –
The reason for the poor performance offered by outriggers integrated with the hull’s rear end (stern) is that the buoyancy they add on the sides of the stern is in fact taken away from the stern itself: When the outriggers are deployed sideways the stern splits in two, and its two halves are repositioned outwardly, so the kayak no longer features a proper stern that may support the user’s weight when they lean backward.
This means the user benefits from no additional support whatsoever when they lean forward (hours 10 to 2), or sideways (hours 8 to 10 and 2 to 4), or if they lean backward (hours 5 to 7). The only gain in (initial) stability is in case the user happens to lean in the angles in which the outriggers are deployed (hours 4 to 5 and 7 to 8).
Bottom line: The gain in initial stability when the outriggers are deployed is in a range of angles that add up to about 1/4 of the total circle (just about 4 hours out of 12) around the kayak user. This almost insignificant advantage is offset by the fact that it is impractical to paddle that kayak when its outriggers are deployed, since the amount of drag they add is considerable, and the main hull in this position loses most of the hydrodynamic advantage offered by its initial length (I.E. hull speed). The combination of these two negative factors is critical to the kayak’s speed, or lack thereof. It is probably the slowest and most difficult fishing kayak to paddle, and this is no small feat in a category of kayaks generally known as ‘barges’…
Interestingly, since the little stability added to this kayak also makes it so hard to paddle, anglers are effectively prevented from using it for sight fishing and fly fishing in case they intend to cover any significant distance.
About the “Leaning Bar” … –
Some SOT fishing kayaks, including the one discussed in the previous paragraph feature a tall vertical metal frame dubbed “leaning bar” or “lean bar”. It is supposed to provide some support for the angler who attempts to fish standing up.
Practically, such vertical metal frame adds leverage to the angler’s weight if they lean on it or grab it, which can cause the kayak tilt further in case the angler loses balance and the kayak is tilting sideways.
Again, the only fishing kayak that really offers fishermen to stand up and fish with 100% confidence and safety is the Wavewalk® as demonstrated in the movies on this page »
Additional articles on the subject of kayak stability:
So I have to say from the start I was very excited to discover WaveWalk. I was very close to buying an inflatable pontoon boat to fish the local electric only lakes within 50 miles of NYC where I live. I had a great purchase experience with Joe Stauder out in Pennsylvania but what I didn’t do was sea trial the craft. This was my choice as I met Joe in a mutually agreeable spot halfway across the State.
Now let me say that I am no lightweight. I’m 6’7″ and 280lbs on a good day. The center of balance on me is not quite where most people are so my maiden voyage was not as easy as most people experience. The boat seemed a bit tippy and unsettled.
The tracking was amazing and the space I had was huge compared to the [12′ brand-name fishing kayak] I came from. The W seating position was awesome and the back pains I normally experience were nonexistent.
I was able to stay on the water much longer in the WaveWalk. I was even able to stand and cast but I have to admit I had some misgivings on the maiden voyage.
One of the mods I had done to my prior Yak was inflatable pop in pontoons and a standup bar. The light bulb went on and I went home and put the pontoon setup on my WaveWalk and it transformed my boat into the standup fishing platform I wanted!
Some of the things I learned along the way were to keep everything low and the C/G as close to the waterline as possible. I scrapped the early version of a milk crate with built in rod holders for sub surface mounted ones and I also upgraded the factory noodles for bigger ones. I’m writing this so that other customers who are of the heavier persuasion are aware of what they too can expect.
My second trip in the WaveWalk was a totally different experience and I found myself standing and casting very comfortably and even stand up paddling. I would not have attempted that the first time. Wind, waves, shallows all easily handled and I can’t wait to get back on the water.
Here are a few pics of my craft and right now I’m working on a dolly to move it around to and from the boat launch more easily.