The warnings and notes contained in this manual are
specified as follows:
WARNING! Must be observed to avoid personal injury.
NOTE! Must be observed to avoid damage to the boat
or its parts.
1.1 Certification
The Terhi boats have been inspected and certified ac-
cording to the EU directive 2013/53/EU on recreational
craft and personal watercraft. The CE-marking has been
stamped onto the manufacturer’s type plate. All Terhi
boats are certified for either for Category C or D (see
chapter 6.1 Design Categories).
WARNING! Always consider your own driving skill, your
speed and direction, if you have to set o into conditions
exceeding the design specifications of your boat.
1.2 Construction of a Terhi boat
The durability and safety of a Terhi boat is based on an
extremely rigid and strong sandwich construction. The
shells are moulded from ABS plastic sheets. The space
between the shells is filled with closed-cell, water-resist-
ant polyurethane foam. The foam firmly adheres to both
shells in a foam press with a pressure of over 30,000 kg/
m². Thanks to its construction, it is impossible to sink a
Terhi boat, even by cutting it into pieces.
1.3 Basic information about ABS plastic
ABS is an acronym for acrylonitrine, butadiene and sty-
rene, its three constituents. The most suitable and dura-
ble ABS qualities, and the special plastics used as coat-
ings, have been selected on the basis of research carried
out in co-operation with the Technical Research Centre
of Finland. These plastics are characterised by their high
impact strength. Thanks to this strength, ABS plastic is
flexible and will not easily fracture in such as situations
as running aground. The ABS plastic used is also UV-
protected.
ABS does not absorb water, so there is no need to
worry about scratches made by stones on the shore. Os-
mosis damage (blistering) cannot occur on an ABS boat.
The properties of all thermoplastics vary to some degree
depending on the ambient temperature. The high impact
resistance of ABS may be adversely aected by severe
frost, but it is unlikely that you would set to sea in such
conditions. This fact must, however, be remembered if
you are intending to move your boat in winter.
Another notable feature of thermoplastics is that their
shape might become deformed under prolonged pressure
on a small area. If, for example, you leave your boat in the
sun, in such a way that most of its weight is resting on a
small stone, an indentation may appear at that point after
a few weeks. This fact must be borne in mind if you are
storing your boat on a shore cart, trailer or winter storage
trestles and when you are transporting it. A half-metre
long piece of board is sucient to distribute the point
loads.
NOTE! The use of floor mats as anti-slip or floor pro-
tection is forbidden, as they can damage the sandwich
construction of the boat when they warm up in the sun.
1.4 Warranty
The Terhi boat has been granted a four-year guarantee
from the date of delivery, and concerns raw materials
and manufacturing flaws. The warranty terms have been
enclosed in this owner’s manual. Pay attention to the war-
ranty terms. The prerequisite for the guarantee is that the
warranty card has been filled out in full together with the
reseller at the time of purchase. Carefully store the buyer’s
section of the warranty card. Potential warranty issued
should at firsthand be addressed with the reseller.
1.5 Insurance
Boat insurance may compensate for damage caused in
the water, when transporting or storing. In some coun-
tries under certain circumstances, small boats may be
covered by home insurance. More detailed information
about dierent insurance options is available from insur-
ance companies.
1.6 Registration
In accordance with boating regulations in many countries,
boats powered by an outboard motor exceeding 15kW
(20 hp) may need to be registered before use. Registra-
tion can normally be done by post. Detailed instructions
on registration and its requirements can be obtained from
your local administrative court. Often a registered boat
may only be driven by persons over the age of 15.
In some countries, it is mandatory for even small boats
to be registered. Check with the local authorities in your
country of residence for the statutory regulations con-
cerning boat registration.
1.7 Manufacturer’s type plate
Some of the technical specifications can be found on the
manufacturer’s type plate, which has been attached to
the boat. Supplementary information are found in this
handbook, under the ‘Techincal information’ sections.
1 General
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