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The first genuine kayak motor
An outboard suitable for kayaks needs to meet very special standards: It must
be extremely light and also watertight. The motor needs to fit onto almost any
kayak. It must be faster than a kayaker can paddle, and provide a worthwhile
range.
The result of these challenges is called Ultralight, which meets all these
demands. It weighs only 15 lbs including battery.
- Mounting: Can be mounted on most rigid-hull kayaks with stainless
steel cavity dowel pins.
- Steering: Steering can be locked, after which kayak is steered
with the paddle or the rudder. This results in a larger radius of turn.
Alternatively, the motor can be connected to the rudder or the steering
system of the boat, which makes it very maneuverable (e.g. for fishing).
- Watertightness: All motor components are watertight, protected
against complete immersion.
- Safety: The motor shuts off when the magnetic key on the remote
throttle control is removed. Therefore, for safety reasons, the magnetic key
should be attached to the wrist or the life vest. If the kayak capsizes, the
motor shuts off automatically to avoid possible injury.
- Lithium-manganese battery: Integrated GPS; the capacity of the
battery is 230 Wh, i.e. 8 Ah at 28.8 V. When fully discharged, the charge
time with the charger supplied is approximately 8 hours.
- Lithium-manganese battery life expectancy: Charge cycles are not
the main factor affecting the service life of the lithium-manganese battery.
The battery does not have a memory-effect. Generally, a loss of capacity of
4% per year can be assumed. Aging is accelerated if the battery is exposed
to high temperatures for long periods and if it is stored fully charged for
long periods. Therefore, the battery can be used in very hot conditions, but
should be removed from the sun and stored in a cool place when not used. If
it is stored for a longer period of time, its charge status should be about
50%. If these instructions are followed, your battery will have a life
expectancy of some 6-10 years.
| Input
power in watts |
400 |
| Rated
voltage in volts |
28.8 |
| Final
voltage in volts |
33.2 |
|
Propulsive power in watts |
180 |
|
Comparable gas outboards (propulsive power) |
1 hp |
|
Comparable gas outboards (thrust power) |
2 hp |
| Maximum
overall efficiency in % |
45 |
| Static
thrust in lbs |
33 |
| Total
weight in lbs |
15.4 |
| Weight of
motor without batteries in lbs |
33 |
| Weight of
integrated battery in lbs |
5.5 |
| Shaft
length in inches |
17.7 |
|
Integrated battery |
230 Wh
LIMA |
| Propeller
dimensions in inches |
8 x 8 |
| Propeller
speed at full power in rpm |
max.
1,200 |
| Control |
Remote
throttle control |
| Steering |
Provision
for connection to kayak rudder; lockable |
| Tilting
device |
Manual
with grounding protection |
| Trim
device |
manual,
4-step |
| Stepless
drive forwards/reverse |
yes |
Example of Range:
Ultralight 402 with integrated battery (28.8 V / 8 Ah), Touring kayak
15.4ft, 51lbs
| Examples of use |
Speed in knots |
Range in nm |
Run-time in hours |
| Full throttle |
6.1 |
4.1 |
0:42 |
| Half throttle |
3.9 |
11.7 |
3:00 |
| Slow speed |
2.6 |
18.7 |
7:12 |
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