Ultralight 403 - Trolling Motor for Kayak

Ultralight 403 with Integrated Battery (29.6 V / 11 Ah)

 

 

 Speed in km/h* Range in km* Running time in hours
Slow 4.2 35.2 08:20
Half throttle 6.0 25.0 04:10
Full throttle 9.3 7.4 00:48

* Depends on type of boat, load, propeller and conditions. Speed and range indications do not represent a legal guarantee.

Information on Range and Speed

When travelling through water, displacement increases power required in proportion to the cube (third power) of the speed. This means that doubling water speed increases the power required eightfold.

Conversely, it of course also means that only a slight reduction in speed will increase the range attainable significantly. Simply reducing speed by e.g. half a knot has a considerable effect on the remaining range.

Since mental arithmetic to the power of three is quite tricky, the on-board computer of the Ultralight constantly calculates the remaining range for you. To do this, it combines the consumption data from the motor with the charge level of the batteries together with the speed over water obtained via GPS. This means you can read the remaining range in real time from the Ultralight's display. Using the TorqTrac App you can even read the remaining range from a map on your smartphone.

Technical Data Ultralight

 

 

 Ultralight 403
Input power in watts 400
Propulsive power in watts 180
Comparable petrol outboards (propulsive power) 1 HP
Comparable petrol outboards (thrust) 2 HP
Maximum overall efficiency in % 45
Static thrust in lbs* 33
Integrated battery 320 Wh Li-Ion
Nominal voltage 29.6
Final charging voltage 33.6
Total weight in kg 7.3
Motor weight without battery in kg 4.4
Weight of integrated battery 2.9
Shaft length in cm 45
Standard propeller
(v = speed in km/h at p = power in watts)		 v10/p350
Alternative propeller options -
Maximum propeller speed in rpm 1,200
Control Remote throttle
Steering Provision to connect to kayak rudder; lockable
Tilting device Manual with grounding protection
Trim device -
Stepless forward/reverse drive Yes
Integrated on-board computer Yes
* Torqeedo static thrust measurement is based on internationally accepted ISO standards. Static thrust figures for conventional trolling motors are typically measured differently, which results in higher values. To compare Torqeedo static thrust data with conventional trolling motors, add approximately 50% to the Torqeedo static thrust values.

 

Ultralight 403 Dimensions