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| What boat
size are ideal for a Thoosa solutions ? |
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Asmo
Marine’s of-the-shelf Thoosa solutions are ideal for boats
from 16-40 feet, and a weight up to 10 ton.
For larger boats Asmo Marine makes customized solutions tailored
to your needs. |
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| How much motoring time
does Asmo Marine’s systems provide ? |
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Motoring
is limited only by cruising speed and the size of the battery bank.
The distance that can be achieved by our solutions, depends on the
boat drag, the size of the battery bank and the speed when motoring.
The figure below, shows the approximate distance covered with a
Thoosa 6000 solution in calm weather, in a 33 feet sailboat, with
a displacement of 3500 kilo. |
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| How much electricity
does the motor use? |
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By a Thoosa 6000 (48V systems), the motor
uses 15-20 Amps, when motoring in a 33 feet - 3.5 ton sailboats,
at a cruising speed at 4 knots |
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| Which type of batteries
should be chosen ? |
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The
choice of battery type is subject to usage.
1. Semi tractions batteries – are recommended for normal usage
2. Gel Semi tractions batteries – gives additional security
for normal usage |
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| How long can my batteries
last ? |
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The
lifetime of batteries is subject to usage. For most sailors, the
batteries will last for 5-10 years, with a proper maintenance |
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| Where should I place
my batteries ? |
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You
can place the batteries anywhere in the boat. The possibility of
contributing the weight of the batteries to the most optimal sailing
condition of the boat, is another advantage of an electric motor
solution. |
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| What size of cabel should
be used for wirering ? |
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For
a Thoosa 6000 installation, we recommend that 35-50 mm2 are used.
For a Thoosa 8500 installation, we recommend that 50-70 mm2 are
used. |
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| How long does it take
to recharge the batteries ? |
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Charging time depends on the battery
pack and the charger used. We recommend to use a charger with minimum
10-20 % of the battery pack. This means, if using 100 AH battery
pack, you will charge with 10-20 Amps and the charging time will
be 5-10 hours. Choosing a larger charger, the charging can restore
the battery packs even faster. |
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| Can I use the 24 or 48
V battery bank for 12 V applications ? |
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Yes,
by using a DC – DC converter, 12 V power on board applications,
can be powered direct from the 48 V battery bank. |
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| How do I control speed
? |
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The
engine comes with a waterproof, infinitely variable forward/back
throttle, making speed control and maneuvering easy and accurate.
The throttle functions exactly, as by a diesel engine. The throttle
is ready for cockpit mounting, as a conventional throttle. |
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| How fast
does the motor react ? |
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The engine power kicks in immediately,
making manouvring easier and more accurate. The instant full momentum
also provides better acceleration and ensures, that the boat can
be brought to still in hazardous situations. |
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| Can i regenerate,
while sailing for sail ? |
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Yes,
when choosing a Thoosa RG model, the system can regenerate when
sailing for sail.
Regenerating is done, by letting the propeller turn while sailing
and using the motor as dynamo. |
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| Can I regenerate,
if I have a folding propeller ? |
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Yes,
it is possible to regenerate with a folding propeller, but is has
a slightly lower effect, in comparison with a fixed propeller.
Regenerating with a folding propeller starts at 4 knots speed, to
obtain the necessary RPM on the propeller to ensure that the centrifugal
force keeps the propeller from folding. |
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| Do I lose
a lot of speed when regenerating ? |
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Having
a fixed propeller, you boat loses less speed when regenerating,
as when the propeller is fixed.
If using a folding propeller, you lose approx. 0.2 knots of speed
when regenerating. |
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| How much
power can I charge, when regenerating ? |
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The
power charged when regenerating, depends of the cruising speed and
the size of the propeller, and it is therefore very difficult to
give charging rates. To indicate how much power is charged, our
test shows that recharging for 1/2 hour at 5-6 knots, normally equals
the power used for harbour maneuvering. |
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| Can solar
panels or wind generators be used to charge the batteries ? |
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Yes,
both solar panels and wind generators can be used to charge the
batteries. |
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| What maintenance
does a Thoosa System require? |
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Once
a Thoosa system is installed, it requires very little maintanance.
There are only two parts, than will need replacement due to tear
and wear.
The belt for the gearing has a lifetime of approx. 8.000 hours,
but we recommend that the belt is changed every third year.
The need for replacement of the brushes depends on the usage of
the engine. Running the engine at max – the lifetime are approx.
3000 hours. Running the engine at a cruising speed of 4 knots, the
lifetime is approx. 6000 hours. The actual lifetime of the brushes
will be in between these two figures. |
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| Can the system
stand up to water ? |
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The
motors used in the Thoosa systems can take the rough weather at
sea. The motors can run under water, but we recommend that they
are exposed to as little water as possible, as it increases the
lifetime of the motor.
The electronic control unit can not stand up to water, so it has
to be placed in a dry space as other on board electrical appliances. |
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| Can a Thoosa
system be combined with a diesel generator? |
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Yes,
the system is prepared to function together with a diesel generator.
The hybrid solution is especially used by sailors, who already have
a diesel generator to power an air-condition system – or by
sailors there want a totally flexible solution, enjoying the calm
motoring provided by the E-motor and the long distance provided
by the generator. |
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| Where can
I get service ? |
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The
system is made by components that can be changed individually. This
means that most electricians and marine centers can provide service. |
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| Can I use
my existing propeller and shaft ? |
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Yes,
most sailors can use the existing propeller and shaft, when going
from diesel solution to a Thoosa system. |
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| Can I use
my existing foundation ? |
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Yes,
the Thoosa solutions can use most foundations made for diesel engines
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