Sailboat Auxiliary Propulsion
Published operating data runs to sailboats of 4.0 tons on the N400 — enough to get out of a marina and back without starting a diesel.
What Goes Wrong Today
- An inboard diesel runs for twenty minutes a week and costs a service every year
A brushless drive has no gearbox and no brushes, and Caroute states no maintenance requirement.
- Noise and exhaust in a marina
Electric drive with quieter power and cooler operation.
- Battery capacity is already committed to house loads
30%–60% more range or power from limited battery capacity than conventional electric motors.

What This Application Actually Needs
Thrust for a 2 to 4 ton displacement hull
Manoeuvring speed control, not top speed
A drive that can be lifted clear under sail
Predictable range on a known battery bank
What to Specify

N Platform Brushless Electric Boat Motor
Five tiller-controlled models from 80 LB to 180 LB of thrust, all built on the same brushless…
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Stainless Steel Brushless Motor Body
A stainless steel motor body with engineering plastics end caps, for boats that live in salt…
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Three Blade Propeller Kit
The standard three-blade propeller: 275 mm diameter, 100 mm pitch, supplied as a kit with the…
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External Controller Box
Moves the controller out of the motor housing and raises maximum amp by 25% over the internal…
View detailsPublished Figures for This Application
Marina manoeuvring
Infinitely variable speed with linear speed-up rather than stepped throttle positions.
Getting off a lee shore
N300 at full throttle: 9.0–11.0 km/h with 18–22 km of range on two 12V / 200Ah batteries.
Long motoring in calm
N400 at slow speed: 120–160 km of range, 40 hours of runtime on four 12V / 200Ah batteries.
Configurations for This Application
Knowledge for This Application

Why a Brushless DC Motor Is More Efficient Than a Brushed One
Eight published advantages of the permanent magnet brushless DC motor, from a 5-12%…
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Permanent Magnet Brushless DC Motor Advantages in Short
Eight short points comparing a permanent magnet brushless DC traction motor with…
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How Brushless Motors Are Classified
Three ways brushless motors are classified: by phase angle, by speed, and by whether a…
Read articleQuestions From Sailboat Auxiliary Propulsion
What thrust for a 3 ton sailboat?
How many batteries does the N400 need?
Will salt water damage the motor?
Is there a volt gauge?
Size a drive for this application
Send the hull details and the water you run in. Jane will come back with the platform, the thrust rating and the body option.



