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Scroll down to view information on suspension seats and the Shark design.
BOAT SUSPENSION SEATS - FACTORS TO CONSIDER WHEN RESEARCHING YOUR OPTIONS. SCOT SEATS, X CRAFT SEATS, SHOCKWAVE SEATS, ULLMAN SEATS, SHOXS SEATS ETC.
1. Bottoming out and force amplification
A bottoming boat suspension seat can transfer shock
waves into your body with greater impact than having no
suspension at all. It is critical to know your boat seat
will not bottom.
2. Lateral and fore-aft forces
Have you ever felt thrown to the side in a boat? Lateral
forces and fore-aft forces mean you need lateral and
fore-aft protection NOT just vertical protection.
3. The force profile of your suspension seat
A wave shock impact is like falling onto a concrete
floor. Some boat suspension seats will provide a soft
landing (low forces) and others a hard landing
(high forces).Ideally you want low forces but be aware
that bottoming is more likely.
The VDV or Vibration Dose Value is an internationally
recognized metric for measuring how much force is being
transmitted into your body. Make sure that your seat
manufacturer is open and shows their results.
THE 3 USABILITY FACTORS
1. Serviceability, adjustability and customization
All marine suspension seats need servicing, for
example to change shock absorbers. Many are also
retrofitted with adjustments such as swivels and
sliders, or height adjusters. Some seats require
total disassembly for these changes, others don't.
Some seats with many parts are extremely tiresome
2. Space and weight efficiency
Seats that allow more room on board increase
general usability greatly. You have probably
experienced a cluttered work space. Weight
efficient means less fuel, faster acceleration,
and one man installation and servicing.
Livability factors are smaller but no less
important. Are there any pinch points?
Can you operate the suspension seat with gloves,
in bad weather? Are there snag points or tripping
hazards? Can you still walk after three hours
in rough seas?
THE 2 RELIABILITY FACTORS
1. How well is it built?
Some suspension seating is over-engineered, and
as a result is cumbersome, with many things
that can go wrong. Simplicity is often synonymous
with reliability and can save a lot of time and
money when servicing and replacing parts. A
complex system not only requires many more spare
parts but often needs them more often due to
reliability issues. Also, be certain the materials
used will not corrode.
2. How well is it tested?
Some boat suspension seats are tested for reliability
with in-laboratory life testing and sea trials.
The International High Speed Craft Code outlines
strength tests to ensure suspension boat seats will
not break away from the deck or otherwise fail under
typical loading. Be sure your seat is safe and
meets this standard (HSC2000 Annex 10).
Shark seats are designed by these principles. See below.
- Shark seats utilize two leaf springs that are non-linear (become stiffer with more compression) to prevent bottoming out.
- The springs flex in 3 directions to give you the lateral and fore aft protection you need. This is important because wave impacts are often not purely vertical.
- We publish our suspension seat performance results so you can make an informed decision. Click the link to view them, and send an email to us if you have any questions.
- Designed to be movable, serviceable & customizable in situ by one person.
- Built from 316 marine grade stainless steel and composite.
- A 300 x 380mm footprint so that you will have more space available on board.
- Shark seats are designed to be simple. A 18kg Jockey system for example means more acceleration and less roll (due to less weight on board)
- Shark seats are designed to be very strong and surpass the HSC2000 strength requirements.
- The suspension unit has only 3 unique parts which means suspension servicing is streamlined.
- The suspension unit is life tested to 1 Million full 10G impacts. This takes 2 weeks of constant slamming and annoys everyone in the building.
“It’s like floating on a cloud!”
Matt Watson, ITM Fishing show
“Went out Sunday in ½ - 1m swells
which for the lake is rough. Bloody
brilliant is all I can say. 40 knots
head on and we were all comfortable
even went full noise 48 knots no
problems. Usually we are doing
30 knots and getting smashed!
MPI Marlborough love the seats &
intend to get them on their new build”
Allan Turia, Turangi Coastguard
“They are in a totally different league
to our previous pedestal type seats.
Gone are the sore backs we used to
have for days after those lumpier
days on the water. A brilliant product
and we would highly recommend it."
Linda & John Forrest, Hillsborough
“I am very glad I made the decision to
go to the “Shark” seat, as hammering
your spinal area over a period of time
sure as hell is not good.”
Russ Hawkins, Fatboy Charters
“The seats absorb the spine
compressing impacts of choppy and
rough seas, enabling the boat to get
where it is going faster, more
efficiently and without the crewman
Renny Bishop, Canterbury University
"Everyone loved the seats performance
thanks to the Shark suspension"
Warrick Yeoman, Northsea boats