"I have
to give Seatorque Control Systems a plug, great system. One
of the big problems as to noise on a boat is the shaft noise
and also vibration. This system is one of the quietest and
vibration free systems I have ever experienced....on any
boat."
George Von Widmann, Inventor of the IEHS Under
Water Exhaust System and yacht designer for over 30 years
New Installation: 72' F&S Boatworks "Bandolera"
"We'll probably never build another boat without it (Seatorque)".
Jim Floyd, Owner of F&S Boat Works
Port of London Authority (PLA) - London,
UK
The initial sea trials of LAMBETH , the PLA's (Port
of London Authority) new launch built at Alnmaritec and now
forming the first of class of their "Wave Guardian" class of
patrol boats , have been very successful. We're currently
testing and tuning all the navigation and operational
equipment.
With the propellers designed by Newcastle University and
H4 Marine supplied Seatorque's oil-lubricated stern shafts,
we are achieving the 2,600 rpm maximum revolutions of the
engines .....The Twin-Disc electronic engine/gearbox
controls make the vessel very manoeuvrable with safety, in
confined waterways, and the Seatorque stern-gear is a
great success in reducing noise, vibration and transmission
losses.
At Professor Mehmet Atlar's modelling and tank testing of
the optimised hull form, he (conservatively) predicted 18.5
knots with 2 x 200 SHP @ 2,600 engine rpm, for a 10.6 tonne
completed vessel.
With the propeller optimised and with the slippery
Intersleek 900 silicone-based anti-fouling, we are achieving
a mean speed of 21.0 knots in the vessel in its finished
state (11.0 tonnes) .... I am convinced that the
successful power delivery is also a result of the reduced
transmission losses from the oil-lubricated stern gear.
So we're delighted with the performance and will be
showing the vessel off, at Seawork, to provide a platform
for all equipment contributors.
Thanks for your contribution to this project. We
have a great boat, in which everyone can be pleased!
Alan Cartwright, Marine Engineer, PLA
Marex Boats, Norway
“Marex started with the Seatorque system on our new project
Marex 370 Aft Cabin Cruiser.
In an aft cabin boat, the engine has to be centre placed
with the risk of sound and vibration disturbance.
We needed a silent system. We were very surprised how little
vibration and sound the Seatorque system produced.
It was simply exactly what we wanted.
The higher efficiency in speed was a very big bonus and has
become another key selling point for the Marex 370.
The system helped us to win the “European powerboat of the
year 2009””
Espen Aalrud, Owner MAREX Boats, Norway
Dean Catamarans - Cape Town, South Africa
Hi Jana and Peter,
A quick couple of lines for your file...
Seatorque is a highly professional company and
obviously very proud of their product – justifiably
All inquiries, particularly technical ones, are
dealt with quickly, accurately, and with knowledge
The product is accurate in dimensions, exceptionally
well manufactured, and easy to install
The operational difference between a conventional
cutlass bearing shaft and the Seatorque unit in terms of
vibration and noise is so vastly superior that
comparison is not possible
With a Seatorque shaft system the improvement in
performance is actually noticeable
Dean Catamarans have now fitted the Seatorque shaft
system to both our 44 foot sailing cat and our Jag 55
foot Powercat, both previously fitted with conventional
water lubricated shaft systems. As yacht builders of
around 300 boats over 25 years we can state
categorically that no other shaft system can compare to
the Seatorque unit
Peter Dean, Managing Director, Dean Catamarans
"My Stolper 380 Tournament Express was
fitted from new with the Seatorque Enclosed Shaft System,
and Power Steering. The boat was exceptionally smooth and
responsive with no drivetrain rattling or banging when
backing down or maneuvering on a fish, the steering was
light, and powerful.
Vibration and noise is a common
problem with many boats, but the Seatorque Shaft System kept
my boat virtually vibration free and quiet, a blessing on
those long trips out to the canyons!
In the 5 years I owned my boat, I experienced the normal
marine equipment failures. However to the contrary, the
Seatorque products were always reliable and never let me
down.
Not having water lubricated shaft seals or leaking
stuffing boxes, reduced the buildup of water at the rear of
the engine bearers, and generally helped keeping the engines
and bilges clean.
Eliminating the usual annual maintenance chores and
expenses associated with conventional shafts, really spoiled
me. When finally I moved to a bigger boat, I discovered from
its absence, what a blessing Seatorque equipment was.
When I build my next boat, I will specify Seatorque as
standard equipment."
Dr Mike Slomovitz, Stolper 380Te "Jasste" 1998 to
2004 ST175 Shafts
"I purchased a 38 Ft express fisherman and have over the
last two years conducted a complete refit. The original
shafts were Seatorque shafts and eight years old, so they
were sent to Seatorque factory for overhaul.
Seatorque updated the system to the latest iteration, new
shaft stock and thrust bearings were added. This completed
they were shipped back to me for re-installation.
I am not a boat builder by profession but found the
Seatorque shafts to be extremely easy to install, with very
little outside help I succeeded in installing the system in
a matter of hours.
Engine alignment was very straightforward and by
following some simple setup procedures obtained from
Seatorque direct, can only state that misalignment of the
engines appears to be almost impossible.
I am only a couple of weeks from launch and seatrials and
will report back on the performance of the Seatorque shafts
once I experience it first hand".
Doug Rollins, Maryland, ST175 shafts 1996 to 2004
“Reliable, safe, quiet, not to mention fuel efficient,
are four things that describes our boat. We put more hours
on our boat then most people I know, and whether on a long
voyage, or cruising out to do some night fishing, there can
be many perils at sea. But just knowing how strong and
reliable the Seatorque shaft system is, gives me total peace
of mind…. ”
“my shafts are protected from situations that might
ordinarily snap or bend a normal shaft, or even damage the
transmissions. The Seatorque enclosed system is just
superior in strength, also I have never had to deal with any
shaft/engine alignment issues on my boat, and that makes
Seatorque two more things…smooth and solid”
“Because of it’s design, the enclosed systems requires
less torque to perform, that gives me a propeller that’s
turning efficiently, using less effort from my engines and
that equals greater fuel economy, giving me greater
range….the way I use my boat, I couldn’t ask for anything
better”
Vic Nelson...Owner of a custom Sportfishing boat
“GOOD TO GO”. Vic and wife, Beth personally captain their
boat between New England and Florida twice a year, and are
avid fisherman. Long days at sea, either en route or chasing
down Sailfish have made them believers in Seatorque Control
Systems and Shafts.