The
W500: The World's Only True Stand Up Fishing Kayak
THE EVOLUTION OF THE
KAYAK
Raising the Bar in Kayak
Design and Performance:
New Standards For the Third
Millennium
This article discusses the
changes in kayak design, usage and
performance over the past century and in recent years.
Part 1
Traditional vs. Modern
Kayaking - From Survival and Utilitarian Use
to Recreational Applications
1. THE ORIGINS OF MODERN
KAYAKS
In the beginning of the twentieth century kayaks were
practically
unknown to the wide public. They were self designed, hand made personal
paddling boats used by native people of the Arctic and Sub-Arctic
regions, in Greenland, Canada, Alaska and Siberia, mainly for hunting
marine and land animals.
These peoples seldom fished from their kayaks and hardly ever used them
for recreation. They preferred to paddle their kayaks in protected
waters such as rivers, estuaries and bays, and they neither surfed nor
went in whitewater. They obviously didn’t paddle standing in their
kayaks - although they sometime did so in their Umiaks, which were
bigger and wider, multi-passenger canoes.
Native kayaks were not uniform: some were narrow and some not, and
while some were over 20 feet long others could be half that length. The
common building technique used then is known as ’skin on frame’: The
builder covered an internal wooden skeleton-like structure with animal
skins.
None of those traditional kayaks ever featured a rudder or a seat, or
even a backrest, which are all modern additions aimed at solving
problems that are characteristic to present days kayakers.
The native people who used narrow kayaks often relied on the ‘Eskimo
Roll’ for recovery, but not always. Some researchers assume that
rolling the kayak was practically the only means of survival available
to these people who didn’t have lightweight watertight suits, because
swimming in extremely cold water while wearing heavy fur clothes is a
recipe for disaster, and many native people didn’t know how to swim.
The wider native kayaks were designed to offer more stability and
thereby provide safety through capsize prevention rather than recovery.
A much less known prehistoric personal paddle craft is the Caballito de
Totora
(’Reed Pony’ in Spanish) used by Pre-Columbian fishermen on the Pacific
coast of South America. Like the Inuit kayak, this sit-on-top reed
watercraft is paddled with a double blade paddle. Its paddleboard
design is very much reminding of modern sit-on-top (SOT) kayaks, except
for its higher bow designed to go over big waves.
There are similar designs in other ancient cultures around he world as
well.
2. A BRIEF HISTORY OF KAYAKING AS A SET OF RECREATIONAL ACTIVITIES
The first popular recreational human-powered boats in North
America
were round or flat bottom or canoes, skiffs and dinghies propelled by
oars or by single-blade (I.E. ‘canoe’) paddles. As the twentieth
century progressed people enjoyed more free time, canoe paddles
gradually became more popular than oars, and canoing became a widely
practiced recreational activity.
Canoing was practiced in combination with fishing, tripping and camping
or by itself, and it was performed mostly inland - on fresh water.
After WWII the American public became gradually acquainted with kayaks,
but kayaking as a popular set of recreational applications became
commercially viable in the early seventies, after manufacturers found
ways to use rotational molding for making low cost, durable
Polyethylene kayaks.
Around that time some improvements introduced to paddleboards gave
birth to the modern sit-on-top (SOT) kayak, which has gradually become
very popular in a wide variety of kayaking applications performed
mainly in warm climates.
During those decades American society’s focus shifted towards the
individual, and the kayak fitted the new trend better than the canoe
since solo kayaking required less skill and experience than solo
canoeing.
Today, in the beginning of the twenty first century, there are some
three hundred thousand kayaks produced in North America annually, of
which about one hundred thousand are SOTs. There are also one hundred
thousand canoes produced every year.
Most contemporary kayaks are rotationally molded from Polyethylene,
which is a durable, reliable and relatively inexpensive material
compared to hand-laid fiber-reinforced plastics (FRP a.k.a.
‘composites’) used in smaller production series. Inflatable, canvas
(folding) and wooden kayaks are made in limited numbers as well.
Modern kayakers use their kayaks in a much wider range of environments
and applications than native kayakers did, and manufacturers offer an
increasingly wider range of kayak designs and models.
Fishing from kayaks is becoming popular in recent years,
mainly in
the sunshine belt states where it is practical to use SOT kayaks. It is
considerably less popular in colder climates.
Part 2
Design and Manufacturing
1. DESIGN AND MANUFACTURING OF NATIVE
KAYAKS
In the old days, a native of the far North who
wanted
a kayak for himself would design it according to his personal liking
and requirements while relying on his people’s oral tradition and
advice. He would use materials available locally such as driftwood to
make a rigid frame on which he stretched a sealskin cover.
It was the job of the women in this kayaker’s family to prepare the
skins and sew the cover.
The native kayak featured neither hatches nor seat, and it didn’t offer
support for the kayaker’s ankles or feet. No native kayaker ever used a
rudder or floatation, and bungee cords as well as Nylon pad eyes were
unknown as well.
That is to say that many basic features in traditional-style modern
kayaks are the product of the late twentieth century design, and have
little to do with the way native kayaks were originally designed, built
and used.
2. DESIGN AND MANUFACTURING IN THE 20th CENTURY AND
BEYOND
Nowadays, kayak design has become a profession, and kayak designers use
Computer Aided Design (CAD) software, often in combination with special
kayak design software. There are practically no kayaks today that are
designed without a computer being part of the process.
A modern kayak is conceived as a commercial product, that is
an
object that should be reproduced many times and sold to various
customers. As such it is not meant to fit a particular individual but
rather a group of customers within a range of physical attributes,
skills, requirements and purchasing power. Some manufacturers offer
customization of certain features such as accessories and colors, but
this service comes with a price.
3. DESIGN CONSIDERATIONS
There is a major difference between native kayaks and modern
kayaks
in their basic built: Native kayaks had a rigid, internal wooden frame
covered with a ’skin’. Such design is no longer in use except for
folding kayaks, and nearly all other modern kayaks have an external,
rigid skeleton (’shell’) that serves a dual purpose and acts as the
kayak’s ’skin’ as well. The introduction of this non-ribbed, simpler
design was key in the proliferation of new, mass-produced, low cost and
durable kayaks.
Customers’ preferred kayaking activity is of critical
importance for
the designer since modern monohull kayak models are designed for one
activity, or a narrow range of activities. The main activity categories
are: Whitewater, Touring, ‘Recreational’ and lately Fishing too.
The whitewater kayak is very short and designed to offer maximum
maneuverability. Similar designs are used for kayak surfing.
The Touring kayak design is usually narrow and long, and within this
family of designs the sea kayak is longer and narrower. Touring kayaks
are faster than other kayak categories.
Recreational kayaks constitute the bulk of the market today, and they
are characterized by their higher stability due to their wider beam.
These kayaks are seldom outfitted with a spray skirt because it is
assumed that most paddlers can’t roll their kayaks. Fishing kayaks are basically
stabler recreational kayak designs
accessorized for fishing that are sold within a higher price bracket.
The reason this article mentions the fishing kayak as a separate
category is that in recent years kayak fishing is growing in
popularity, which reflects people’s tendency to prefer stabler models.
All monohull kayak designs except whitewater kayaks can be
outfitted
with a rudder system, and they often are since regardless of their type
they all have tracking problems.
Another factor that kayak designers bring into consideration
is the
customers’ personal liking in terms of fashion. This goes to colors,
materials, forms and accessories.
And last but not least, designers and manufactures need to
produce
products that fit their customers’ spending intentions and
capabilities. There is no point in offering a cheap and durable
Polyethylene kayak to a customer who has already decided to spend more
on an expensive yet less durable kayak made from another plastic
material reinforced with carbon-fiber or fiberglass (FRP, also called
composite plastics)
4. SIT-ON-TOP (SOT) KAYAKS
Technically speaking, sit-on-top (SOT) kayaks further
depart from
native designs, as they can no longer be considered as vessels because
they don’t feature a hollow compartment for the passenger/s. These
modern kayaks evolved from paddleboards in the past four decades, and
their general form is that of a flat board equipped with a seat and
small depressions for the passengers’ heels. SOTs have become widely
accepted as kayaks since they feature the essential characteristics of
modern monohull kayaks (I.E. seat, feet support and double-blade
paddle), and they are used for similar recreational activities. There
are only few eccentrics left who still think of SOTs as being anything
other than kayaks.
5. ‘RECREATIONAL VS. ‘TOURING’
KAYAKS
The dictionary defines Recreation as “Refreshment of one’s
mind or body
through activity that amuses or stimulates; play”. The dictionary also
defines Touring as “Travel, as on a bicycle or on skis, for pleasure
rather than competition.”
In this sense, all Touring kayak models are recreational in a broad
sense since kayak touring itself is a recreational activity.
That is to say that the distinction between ‘Recreational’ and
‘Touring’ kayaks may be related to certain design characteristics such
as width and length, but it is also related to marketing considerations
- a process known as ’segmentation’.
Part 3
Ergonomics: From a single, uncomfortable position to the freedom to
choose from a variety of ergonomic positions
1. HOW THE TRADITIONAL, L KAYAKING
POSITION CAME TO BE
The native kayak was a ‘man’s boat’ - that is a hunters’ boat.
What
it practically meant was that the native hunter in his kayak had to
approach prey such as swimming caribou, beached seals or certain bird
species from the shortest possible range in order to effectively shoot
a harpoon or an arrow at them. To remain unnoticed from the shortest
range the Inuit kayaker needed to stay low above water. In fact, for
whaling and long sea trips the Inuit preferred to use their bigger and
stabler canoe-like Umiaks.
Since stealth was important for native kayak hunters they paddled in
the low, traditional L kayaking position with their legs stretched
forward. People around the world used to sit on the floor in similar
postures before nearly everybody adopted special sitting furniture such
as stools, benches, chairs, sofas, armchairs and other seats.
The kayak is rather unique boat in this sense since native
canoes
around the world usually offered additional, more comfortable and
powerful positions such as sitting higher, kneeling and standing.
Interestingly, the L is not the only position that monohull kayaks
offer: Some whitewater canoeists take kayaks and ‘convert’ them into
‘canoes’ just by adding a very low saddle inside their cockpit. This
arrangement enables them to kneel inside on both knees in one of the
traditional canoe kneeling positions, and paddle with a single-blade
paddle (I.E. canoe paddle). The reason why only few paddlers ‘convert’
kayaks into ‘canoes’ is because that particular kneeling position is
even less comfortable than the traditional L kayaking position, and
this may be the reason why some of these canoeists call themselves
‘pain boaters’…
This leaves modern monohull kayakers with just one position to choose
from, and it’s not an ergonomic one. That’s not much in terms of
freedom of choice, especially when one considers the fact that in their
everyday life modern kayakers are used to a variety of seats and
sitting positions that do not include the L position.
2. THE MODERN L KAYAKING POSITION -
TRYING TO SOLVE A PROBLEM BY CREATING ANOTHER
Seats and foot rests (a.k.a. ‘foot braces’) have altered the L
position without improving much: The backrest prevents the kayaker’s
torso from ‘falling’ backwards but it makes it slide down and forward.
In order to counter affect this problem modern kayaks offer support for
the kayaker’s feet: By anchoring their feet in those small depressions
or ‘braces’ kayakers can stop their bodies from sliding down and
forward.
However, the combined backrest and footrest system created a new
problem, which is constant pressure on the kayaker’s lower back. This
pressure is generated by the kayaker’s own legs pushing against both
footrests and backrest like a powerful spring. The negative
physiological impact of this pressure is felt as fatigue, discomfort in
the legs and back pain. The problem is amplified by the kayaker’s
inability to switch to other positions. Some kayak seats offer a rigid
support for the kayaker’s back and other kayak seats offer heavily
cushioned support, but four decades of experimentation proved the L
position to be an ergonomic dead end.
3. BIOMECHANICAL ISSUES WITH THE L
POSITION
Our legs have the most powerful muscles in our body and they are
naturally best fit to do the hard work involved in locomotion and
balance. The L kayaking position prevents paddlers from using their
legs effectively for balancing, controlling and propelling their
kayaks. Therefore, the kayaker’s back, abdomen, shoulders and arms must
do considerable extra work. This effort distribution is insensible from
a biomechanical standpoint, which means you’re spending energy for
nothing and get tired more quickly while your kayak delivers less
performance than you need.
4. VARIATIONS ON THE
L POSITION - TRYING TO DEAL WITH A PROBLEM BY CREATING DIFFERENT ONES
Manufactures of monohull kayaks who tried to
depart
from the L position by offering higher seats found that they needed to
increase their kayaks’ width considerably in order to compensate for
raising the paddlers’ center of gravity (CG). This was done only to
rediscover the fact that excessively wide kayaks track very poorly and
are harder to paddle.
5. THE NATURAL SOLUTION: THE W
KAYAK POSITIONS
The W departed completely from both the monohull design and
the L kayaking position.
By offering much better lateral stability and a high saddle the W Kayak
has enabled a new set of comfortable positions and a wide range of
intermediary positions, as well as the possibility to alter your
posture anytime you feel like it.
This is achieved without widening the kayak - In fact, the current W
Kayak models are only 25″ wide, which is as wide as some sea kayaks are.
The key to improving comfort and performance in paddling and fishing is
the new, full role played by your legs: Instead of pushing horizontally
against your lower back as they do in the L kayaking position, your
legs support your torso vertically - from below, in the W Kayak riding
(mounted) position. This is our legs’ natural position for locomotion
and other major physical efforts. For this reason the W Riding
(mounted) position is not only ergonomically better (I.E. more
comfortable) but it’s also better biomechanically, that is more
efficient in effort terms and more effective in performance terms of
power output and control level.
The four basic W positions are: Standing, Riding (Mounted)
with your
legs on both sides of your body, Sitting with your legs forward
(similar to sitting in a canoe), and Kneeling - a position preferred by
some canoeists.
Part 4
Increased Diversity: The Proliferation of New Kayak Designs
1. MULTIHULL KAYAKS
The kayak concept didn’t stop broadening with the monohull
sit-in
and SOT designs: As soon as kayaks started gaining popularity people
began experimenting and inventing new configurations and designs that
included more than one hull (monohull).
The first multihull kayaks were ordinary monohull models
equipped
with a single outrigger (Proa style) or with two outriggers (trimaran
style). Such outriggers were needed to compensate for the monohull’s
basic stability deficiency. Lately, outrigger kayaks are regaining
popularity among kayak fishermen.
Later, catamaran style kayaks appeared in both sit-in and SOT
versions. Inflatable sit-in catamaran kayaks are used for whitewater
and fishing, and rigid polyethylene SOT catamaran kayaks were
introduced as recreational and fishing kayaks.
The inflatable sit-in designs are not true catamarans but rather wide
versions of tunnel-hull kayaks (monohull), and therefore slower than
comparable monohulls.
The SOT catamaran kayaks are very wide and therefore harder to paddle
than similar size monohull kayaks. They also place the paddlers in the
L position much higher than the regular SOT kayak does, which results
in increased instability without compensating for it by improving
ergonomics or biomechanics.
One can no longer claim today that kayaks are monohull boats -
The
kayak has evolved into a class of small, personal watercrafts that seem
to have two things in common: Paddlers propel them using double blade
paddles a.k.a. ‘kayak paddles’, and more importantly: most people
perceive them as kayaks and call them by this name.
And just to be realistic, these days a kayak doesn’t necessarily have
to be paddled since some kayaks are equipped with electric motors
(mainly for trolling), and in some cases even with gas engines.
Part 5
Versatility: From Specialized Kayaks to Broad-Range,
High Performance Kayaks
1. THE ENVELOPE
OF KAYAK DESIGN IN THE MICRONAUTICAL CONTEXT
Ordinary multihull kayak designs offer increased stability
but at a
price of reducing speed and mobility, and without improving ergonomics.
In this sense those designs didn’t really expand the envelope of kayak
performance, since the basic tradeoffs that characterized it remained
the same.
This multi-dimensional performance envelope was
limited by two basic factors: The L kayaking position and the monohull
design, and liberating the kayak from the monohull constraint wasn’t
enough. This is because unlike bigger boats that greatly benefited by
the introduction of multi hull designs, kayaks are personal
micro-boats, which makes their design primarily a matter of ergonomics
and biomechanics before hydrodynamic issues can be considered.
That is to say that kayak design falls under the definition of
micronautics - the art and science of designing watercrafts that weigh
less than their passengers, and are affected by their physical
attributes, athletic skills, performance and behavior more than by
anything else.
In this sense even traditional kayaks and canoes
have
more in common with surfboards, paddleboards and dinghies than they
have with big monohull boats of similar hull shape.
2. TYPICAL TRADOFFS IN TRADITIONAL
KAYAK DESIGN
By ‘envelope’ we understand a boundary that limits what is
possible
to achieve. The kayak design envelope is multi dimensional, and each
dimension (axis) is a continuum between two contradicting requirements.
The classic contradicting requirements in kayak design are Speed vs.
Stability, and Tracking vs. Maneuverability. This double contradiction
can be approached as a set of two broader requirements, which are
Versatility vs. Performance.
There are other, less important pairs of contradicting requirements
such as Durability vs. Weight, and Solo Performance vs. Load Capacity
that define the kayak design envelope, but the first two ones are
viewed to be the most important ones.
This classic envelope was imposed by the physical attributes of the
monohull kayak. This is reflected in the kayak market by the fact that
monohull kayak models are typically designed for narrow ranges of
applications and users.
Versatility has hardly played a role as a feature because it was
technically limited, and interpreted as lackluster performance in
specific applications.
For example, a good fishing kayak had to be made as stable as possible,
but because of this requirement it couldn’t be fast or perform well in
the surf.
3. VERSATILITY - THE
NEW PARADIGM
‘Multi-purpose’ kayaks aren’t new: Long and slender kayaks
known as
surf-skis can be used for touring (sea kayaking) as well as for
surfing, and wide recreational kayaks can be used for fishing.
The problem with multi-purpose monohull kayaks is that they don’t offer
high performance in either one or all the applications people use them
for.
For example, recreational monohull kayaks and even those of them
labeled ‘fishing kayaks’ are neither stable nor comfortable enough to
offer the full range or performance that kayak fishermen can get from
the W kayak. Similarly, being very long surf skis aren’t well adapted
for surf playing, and they certainly don’t enable their users to paddle
and surf standing.
Since the W kayak is not constrained by the monohull’s narrow
performance envelope it is the first truly and fully versatile kayak:
It is faster than any monohull kayak of similar size, yet it’s stabler
than any kayak. It’s small and highly maneuverable yet offers more
storage space than any kayak. The W is more comfortable than any kayak
as well as more mobile than any kayak since you can launch, paddle and
beach where other touring kayaks can’t go. The W performs well both as
a solo and tandem boat, and both double-blade and single-blade paddlers
find it to be perfect for them. The W fits big and heavy users, yet
it’s friendly enough for small children to handle by themselves - even
in the surf. And last but not least, the W offers four basic paddling
positions including two new ones, plus many intermediary positions.
Interestingly, some people found it hard to believe that any
kayak
could be that versatile, and they doubted the W’s capabilities. Other
people who were used to highly specialized kayaks found it difficult to
imagine a situation where they would be using the same boat for two
different activities (E.G. fishing and touring).
These days more people are willing to question old conventions and
accept the fact that paddling and fishing are subject to continuous and
sometime substantial progress, like most other technical fields are.
Many people now accept the W for what it is, which also means that they
evaluate what the W offers relatively to their own, real needs, and
even conceive new types of usage.
Part 6 Mobility: The New Dimension
1. KAYAK MOBILITY
DEFINED
Anybody can understand that a 4×4 off-road
SUV is more
mobile than a common, two-wheel drive car. Most people realize that a
skin-on-frame Inuit kayak is less durable than a modern plastic kayak,
and you couldn’t paddle it in some of the places that you’re used to
paddle in. But what does mobility mean when it comes to modern kayaks?
It basically has to do with whatever limits kayakers and kayak
fishermen from going where they want to:
Such limits include spots that are too difficult to launch your kayak
from, or too difficult to beach it in. Other limits can be water that’s
too difficult to paddle in because of currents, waves, ice, vegetation
or submerged obstacles such as wooden logs or rocks.
Weather conditions can limit you as well: Canoes
are
difficult to paddle on windy days and so are most kayaks, including
touring kayaks.
So, if for whatever reason you’re prevented from using some beach or
going somewhere with your kayak it means your kayak’s performance is
limited in terms of Mobility.
2. WHY IS MOBILITY IMPORTANT?
Your kayak’s mobility goes two things that matter to you:
Safety: You won’t drive a two-wheel drive car in a snowstorm or on ice
because it’s unsafe to do so. Similarly, you wouldn’t paddle a kayak
with limited mobility in water or weather conditions that are not
suitable for it, and you won’t launch or beach it where you might
capsize.
Freedom: You don’t think of a two-wheel drive as a great outdoors
vehicle since its limited mobility would restrict your freedom of
movement. This argument may be circular, but apparently too few
kayakers pay attention to this issue, especially touring and sea
kayakers.
What’s a fast kayak good for if it requires special places for
launching and beaching? Why can’t you paddle a fast, expensive touring
kayak in a fast stream or have fun with it in the surf?
And if you’re a fishermen the advantage of replacing your big, trailed
motorboat by a cartop fishing kayak is considerably reduced if you
can’t launch it, fish with it and beach it anywhere you want.
3. KAYAK MOBILITY REDEFINED
The W kayak offers a level of mobility that’s unprecedented,
and may even be inconceivable for some.
Mobility is a feature that’s easy to demonstrate, and a picture tells
more than words, especially if it’s moving. Therefore, it seems like
the most appropriate thing to do at this point would be to have the
reader watch the some online videos
>>
Recommended Additional Reading :
Paddle VS. Pedal Drive in Common
Fishing Kayaks
An article that examines pedal
drive propulsion for fishing kayaks from several technical angles,
which are: Ergonomics – How does it feel to operate a
pedal driven kayak, and what are the potential physiological drawbacks
in this type of propulsion. Mechanics -How efficient
are pedal drives’ pedaling systems. Hydrodynamics
-How efficient are pedal drives’ propellers, and how effective is
pedaling kayaks compared to paddling them. Real World
Performance – How effective are pedal driven kayaks in
applications such as fishing trips, stand up fishing, fishing in moving
water, fishing in shallow water, launching, beaching, etc.