Tag Archive: motorized kayak

The world’s fastest kayak

What is the world’s fastest kayak?

The world’s fastest kayak is the Wavewalk S4, propelled by a 9.8 HP Tohatsu outboard motor. The S4 can go at a 17 mph speed (27 kmh) when propelled by a 9.8 HP motor, with only the driver on board.

What is the world’s speed record for kayaks?

The current kayak speed record is 17 mph (27 kmh). This speed record was achieved by Captain Larry Jarboe, in Key Largo, on January 17th, 2018, in a Wavewalk S4 outfitted with a 9.8 HP outboard motor.

What makes a kayak faster?

The factors that contribute to a kayak’s speed are its Size, Weight, Dimensions, and Propulsion.
Human Powered: In a paddling or pedaling mode on flat water, mono-hull kayaks with a high Length to Beam (L/B) ratio, namely very long and narrow kayaks, are generally faster than kayaks with a low L/B, which are more stable.
In choppy water, the kayak’s Stability and Balancing capabilities offered to its crew play a more important role.
Motorized: At high speeds, such as when the kayak is motorized by a powerful outboard motor, Stability and Balancing capabilities are the dominant speed factors, as the kayak moves in a planing mode and no longer in a displacement mode – The stabler the kayak, the easier and safer it is for its driver to drive it at high speed.
Additionally, kayaks that offer their driver to drive while seated closer to the motor are safer and easier to drive than kayaks that have the driver separated from the outboard motor by a longer distance.

Why is stability a key factor for speed?

Stability is defined as resistance to change. A kayak driven at high speed can flip over more easily than at a lower speed, and better lateral stability means that it can be driven at higher speeds with a lesser risk of overturning.

What is the most stable kayak?

The world’s most stable kayak is the Wavewalk S4. It is the only kayak that enables a 200 lbs full-size adult to stand on one side of the kayak with both feet, and turn around themselves as if they stood on the deck of a full-size boat. It is also the only kayak that can be driven at high speed in rough water, namely the most seaworthy kayak.
This unmatched stability results from the fact that the S4 features a patented twin hull. In this full fledged, true catamaran form, the boat’s volume is distributed along its left and right sides, where it is the most effective in offering maximum buoyancy and therefore best support for the shifting weight of both passengers and gear. This optimal performance is in contrast to other kayaks that feature conventional mono-hulls, where the hull’s volume is concentrated along the boat’s center line in a way that makes it the least effective in stability terms.

Why is balancing capability a key factor for kayak speed?

Being a small vessel, a kayak is inherently less stable than bigger boats, and therefore the ability of the kayak’s user(s) to balance themselves and their kayak effectively is key factor in the kayak’s overall stability.
Balancing capability is a key ergonomic factor for driving many types of small vehicles, both human powered and motorized.
It is particularly important in bicycles and motorcycles that offer no stability of their own, and therefore depend entirely on their users’ ability to balance them. Other vehicles that offer their users good balancing capabilities are All-Terrain Vehicles (ATV), snowmobiles, and Personal Watercraft (PWC).

What gives a kayak user better balancing capabilities?

A type of seat known as a Saddle is what all the above listed vehicles have in common. A saddle allows the user to balance themselves with their legs straddling the seat, in a manner similar to horse riding. The user straddling the saddle seat can easily and swiftly shift their weight from one leg to another, in a way that resembles balancing while running and jumping, namely more naturally, intuitively, and effectively than when seated in other positions, such as on a bench, swivel seat, chair, or in the notoriously uncomfortable and unstable L kayaking position.

What makes the Wavewalk S4 faster than other kayaks?

The Wavewalk S4 is the world’s fastest motorized kayak due to the fact that it is the world’s most stable kayak. This urivaled stability is made possible thanks to its twin-hull (catamaran hulls) and the ability of its crew to balance themselves effectively while riding a saddle seat, similarly to the way that Personal Watercraft (PWC) and other high performance vehicles (e.g. motorcycles, ATVs, snowmobiles) balance themselves and their vehicles.

The world’s fastest kayak in action (movies) –

The world speed record for vessels designated as kayaks:

Captain Larry Jarboe driving his S4 at 17 mph

 

High speed motor kayak in the ocean chop:

 

Speed comparison of S4 powered by a 5 HP vs 9.8 HP:

 

What are the advantages of a fast kayak?

The main advantages of a faster kayak is that it saves you time when you want to get somewhere, such as a productive fishery, and it makes it possible for you to access remote locations.
In addition, speed is enjoyable, and driving a fast kayak is fun.

Practically speaking, a fast and stable kayak that’s also highly seaworthy presents the advantages of a microskiff (micro skiff), in addition to being a car-top boat, and the ability to carry it to and from the beach, without depending on boat ramps.

 

Wavewalk S4 “kayak” with 9.8 HP Tohatsu outboard motor, offshore, in waves, at full throttle

Kayak, skiff, or PWC?

“Kayak”??… This is likely to be the last thing that comes to mind of anyone watching this movie, but indeed, the S4, like all Wavewalk’s patented catamaran boats, is officially designated as a kayak, not just because of its light weight (98 lbs) and high performance as a paddle craft, but mainly thanks to certain design features required by law.
Skiff?… The kind of performance seen in this movie is not what you’d expect from a skiff or skiff by name.
Wavewalk likes to bring forward the S4’s performance as a skiff, namely a fishing boat for flat water, but there’s no flat water to be seen in this offshore movie… far from that!
PWC?… Such comparison would have been more appropriate if we used wheel steering instead of direct steering with the tiller, and possibly an even more powerful motor than the 9.8 HP Tohatsu that features in this movie. Nevertheless, the movie conveys some of the action and excitement associated with Personal Watercraft (PWC), sometimes referred to as jet-skis.

 

PWC stability at high speed

This video shows the Wavewalk S4 powered by a 9.8 HP Tohatsu outboard motor, driven at full throttle, offshore, in choppy water and waves.
It demonstrates a performance level that’s new in the world of small boats and watercraft, including both unrivaled speed and stability that enables stand-up driving and wave-hopping that one expects to find only in Personal Watercraft (PWC).

 

Perfect balancing and ergonomic saddle seat

The Wavewalk design and PWC have one feature in common, which is their similar saddle seats that deliver the best balancing capabilities to the driver and passengers. But the advantage of the saddle seat doesn’t end there – The saddle also allows the driver and passengers’ legs to act naturally as powerful and effective shock absorbers that protect their backs from the unwanted impact of the constant leaps and bounds, and high speed clashes with waves.

Being officially designated as a kayak, the S4 delivers these capabilities in a paddling mode too, although at much lower speeds…

 

A most seaworthy small boat

The performance seen in this video is not the kind of performance that flat-bottomed boats such as Jon boats or skiffs can deliver. The S4 is seaworthy, while these traditional small fishing boats aren’t.
What cannot be well perceived from watching this movie is the fact that the S4 is dry too – Frontal clashes with waves do not let water into its hulls, and the only time when spray gets in is when the boat is hits a wave with its broadside. Even then, very little water gets inside.

Shooting this video

The cameraman was Captain Larry Jarboe, standing on the deck of his fishing boat, the Line Dancer, that was anchored in the same choppy waters as the S4 is seen going in. The Line Dancer was constantly bouncing and tilting, which made it particularly difficult to shoot video of another, distant and fast moving small boat.
Larry used a Nikon Coolpix 900 digital camera with a powerful x83 optical zoom lens, in an auto-focus mode, but since placing this camera on a tripod would have been useless under these hectic conditions, Larry’s sea legs were the decisive factor that helped produce the video footage for this movie.

The White Knight – Larry’s workhorse S4

The boat in this movie is Larry’s personal S4, dubbed the White Knight. Larry offers fishing and diving tours in Key Largo, and it is this boat that he uses in these trips, and on a daily basis. The White Knight features a base for a diving ladder at the bow, and foam boards on its sides, since Larry sometimes uses it to side-tow two other S4s,each attached to a different side of the White Knight.

The White Knight is powered by a 9.8 HP 2-cycle Tohatsu outboard motor, and Larry recently clocked 17 mph with it, which is a world speed record for kayaks.

Driving the S4

The S4 operator in this movie is 56 years old, and not in great shape. An athletic driver half his age would have probably driven the S4 more aggressively and spectacularly, but that tired-looking, gray haired driver adds a feeling of reality to the video, or so we hope…

 

Driving an S4 motorized kayak skiff with a 9.8 HP Tohatsu outboard at 17 mph

Captain Larry Jarboe from Wavewalk Adventures in Key Largo, Florida, drives his “White Knight” workhorse S4 kayak-skiff powered by a 9.8 HP 2-cycle Tohatsu outboard motor, outfitted with a 9″ pitch propeller.
Larry easily gets to a 17 mph speed, which is probably a world record for vessels that are officially designated as kayaks, such as the S4.
He drives sitting in the side-saddle position, similarly to the way that he’s been driving dinghies and other small boats for decades – No stability problems, and no control problems, even in the chop. Most people who drive the S4 and other Wavewalk kayaks / boats do it in the riding position, with a leg on each side of the saddle seat, similarly to the way that Personal Watercraft (PWC a.k.a. jet-ski) drivers operate these vessels.

Generally, 2-stroke outboard motors are lighter than comparable 4-stroke outboards, which makes them more portable.
9″ is the highest pitch for propellers that fit this motor. A propeller with a higher pitch would have probably added some speed to Larry’s record. In any case, 17 mph falls within the upper range of speeds achieved by small, lightweight boats with propellers of such pitch.

 

Practically speaking, this performance coupled with the S4’s capability to carry on board up to three anglers and their fishing gear, puts it on par with Jon boats, skiffs, and even some bass boats.
The S4 is an ultralight car-top boat that can be launched and carried anywhere, as well as paddled in extremely shallow water, and it is most seaworthy. These facts offer its users an advantage that neither conventional nor new boats do.

Note that Larry is a most experience boat driver, and driving such a small craft at such high speeds requires skills that not anyone has. This is to say that we do not recommend such powerful motors for the S4.

Showing the Wavewalks in Pennsylvania

By Joe Stauder

HBBCO Kayaks and Portable Boats

We will be showing the Wavewalk 500, 700 and S4 from the 17th to the 21st at the 2018 Outdoor Sportsmans Expo at the Lycoming Mall in Pennsdale, PA, and at the Early Bird Sports Expo at the Bloomsburg Fair grounds, PA, from the 25th to the 28th.

Come visit us at our booth and see all three Wavewalk models.
They will be rigged to the hilt, showing the versatility of the Wavewalk design, We will be offering SPECIAL pre season DISCOUNTS on all Wavewalks ordered at the show!
PLUS we have a couple demo models to sell this year.

 

10 good reasons to motorize your kayak

Wavewalk is the world leader in motorized kayaks in terms of stability, load capacity, seaworthiness, speed, versatility, mobility, comfort, and more.
This article answers the question “What are the advantages of motorized kayaks over non-motorized ones?”

1. Motorizing is easier than paddling

Not everyone can paddle their kayak over long distances, or in less than perfect conditions. Some kayakers suffer from disabilities, and others are elderly or not physically fit. Assisted paddling, namely paddling while an electric motor provides your kayak with additional propulsive power makes things easier, be it in strong wind, fast currents, or waves, as well as on flat water. When you motorize, you save your own energy, and you’re more comfortable.

2. Having a motor is safer than depending solely on paddling

A human powered kayak is an under powered vessel, by definition. In a sustained mode, an average adult paddler can produce between one tenth of a horsepower and one quarter of a horsepower, and this is very little, even in comparison to weak electric motors. In case you’re too tired to paddle back to your starting point, or due to unfavorable changes in water or weather conditions, being able to propel your kayak with a motor can be a critical factor that could save your trip, and even your life – A motorized kayak is safer than a non-motorized one.

3. A motor greatly increases your range of travel

Simply, having an extra source of power on board allows you to go further, since you can paddle to your destination, and motorize on the way back. So, whether you’re on a touring, fishing or on a photography trip, the motor allows you to cover more water, explore, and go to more places.

4. A motor allows you to take a bigger payload on board – cargo and/or passengers

You may want to take a passenger on board, or load your kayak with heavy camping gear, but this additional weight could make it too hard for you to paddle. In such case, a motor could make the difference.

5. Motors work well for trolling

You can paddle your kayak and fish at the same time, namely engage in trolling, but an electric trolling motor or a small outboard gas motor can do a better job than your paddle.

6. Driving a motorized kayak is fun!

Driving a motorized kayak can be fun too, especially if it’s a Wavewalk that’s outfitted with a powerful outboard motor. And driving standing, which is an option that all Wavewalk models offer, is even more fun – It’s comparable to skiing, except you’re going on water and not on snow, and it’s also comparable to water skiing, except for the fact that you’re free to go anywhere you want, including in choppy water and in waves, and you don’t depend on a powerboat to tow you.

7. A motor can get you to places that you otherwise couldn’t access

A Wavewalk outfitted with a mud motor (surface drive) can go where other boats can’t, and even where human powered kayaks can’t, such as mud flats, fast streams, etc.

8. Driving saves time

An S4 Wavewalk kayak outfitted with a powerful outboard motor can go at speeds approaching 20 mph, for as long as you want. This is more than five times the speed that a strong kayaker in a fast kayak (that is not a typical fishing kayak) can sustain for a limited amount of time, on flat water. In other words, a motor kayak can get you much faster to where you want to go, and back.

9. Motor boating is cool, and speed is exciting

Not everyone likes paddling, and not everyone thinks it’s cool. You may want to take someone on board your kayak, be it a child, your wife, an elderly parent, a fishing buddy, etc., and find that kayaking (or canoeing) doesn’t appeal to them, but going in a motorboat would, and to some of them the appeal would be greater if you go at high speed.

10. Helping other kayakers

Having a kayak powered by an outboard motor puts you in a unique position of being able to help other kayakers. You could do it by carrying heavy camping equipment on board your motorized kayak (realistically, only a Wavewalk…), taking passengers that aren’t fit for paddling, and by towing other kayaks.

 

More articles on these subjects –

How much HP for my S4 skiff’s outboard motor?

Developments in Motorized Kayaks

Paddling in Strong Wind

Boat stability in a kayak

Motorize your fishing kayak?

How Much Gear Can You Store Inside a Wavewalk Fishing Kayak?

Fishing Kayak Stability

Motorizing Your Kayak – Why, How, What Etc…