Product description

Upwards compatible:
The BaseTravel also runs on lithium batteries

For uses where the mobility of the BaseTravel is important or for the use of back-up batteries, the motor can also be driven using the Travel replaceable battery, available as an optional accessory. Using the lithium high-performance battery, the BaseTravel motors achieve the same performance as that of comparable Travel models

Background knowledge on calculating the range of electric motors:

The range and runtimes that can be achieved using electrical drives with specific battery supplies are calculated in four steps as follows:

1. Calculation of the existing battery capacity: To calculate this, the power of the battery (in volts) is multiplied by the charge  (in ampere-hours). A 12 V battery with 100 Ah therefore has, e.g. a capacity of 1,200 watt hours (Wh), while two batteries  connected in parallel with a total of 24 V and 75 Ah each have a capacity of 1,800 Wh.
2. Calculation of the required amount of energy: The input power required by the motor is considered in the next step.  The BaseTravel 401 has, e.g. an input power of 400 watts. 400 Wh are therefore required for one hour runtime at full power.
3. Calculating the range: An initial range can be calculated taking into account the speeds that can be achieved (compare the  graphic on Page 25). For example, on a dragon sailing boat the BaseTravel 401 reaches a speed of 3.5 knots (6.5 km/h).  With one 12 V battery at 100 Ah (resulting capacity of 1,200 Wh) it could therefore run in theory for 3 hours at full speed and cover a distance of 10.5 nautical miles (19.5 km). The range calculation for a 1,200 Wh lithium battery power supply would  now be completed.
4. Taking into account the lack of high-current resistance of lead batteries: Lead batteries have a relatively low resistance to high currents, i.e. their capacity drops significantly under their nominal capacity as soon as a consumer tries to draw higher currents from them. To calculate a realistic range, this effect must also be part of the calculation. If the appropriate  specifications on high-current efficiency are not published in the data sheet of the battery then the diagram on Page 9 may  provide you with assistance. To do this, the weight of the battery must first be determined, e.g. the weight for the 12 V  battery at 100 Ah in the example above may be 90 lbs. If there is a power consumption of 400 W by the motor then there would be a high-current load of 4.4 W per pound of battery weight. The loss in effective capacity of the battery resulting from this can be estimated from the graph and should be less than 20% in the example, depending on the quality of the battery. The range that could therefore be actually achieved would then be approximately 8.4 nautical miles (15.6 km). Two rules can be derived from this calculation: Firstly, especially motors with a high input power require large lead battery banks to achieve reasonable distances. Secondly, drives with bad efficiency waste battery capacity in two ways: On the one hand, they do not sufficiently convert the used energy into propulsive power. On the other hand, they cause unnecessary high-current loads to the battery, whereby less capacity is available to be used

Technical data & measures

	Travel 401 S	Travel 401 L	Travel 801 S	Travel 801 L
Input power in watts	400	400	800	800
Rated voltage in volts	12	12	24	24
Final charge in volts	16.8	16.8	33.6	33.6
Propulsive power in watts	168	168	336	336
Comparable gas outboards	1 HP	1 HP	2 HP	2 HP
Maximum overall efficiency in %	42%	42%	42%	42%
Static thrust in lbf	35	35	62	62
Total weight in lbs	19.6	20.9	20.1	21.4
Maximum shaft length in inches	23	28	23	28
Integrated battery	no	no	no	no
Propeller dimensions in inches	12 x 10	12 x 10	12 x 10	12 x 10
Propeller speed at full power in rpm	max. 720	max. 720	max. 720	max. 720
Control	Tiller-control	Tiller-control	Tiller-control	Tiller-control
Steering	180° lockable	180° lockable	180° lockable	180° lockable
Tilting device	manual	manual	manual	manual
Trim device	manual, 7-step	manual, 7-step	manual, 7-step	manual, 7-step
Stepless drive forwards/reverse	yes	yes	yes	yes
Additionally preset speeds	yes	yes	yes	yes

Measures (inch)

Range