Finalist in both Commercial Marine Design and Marketing Awards

We are proud to have been judged as finalists in two categories in these awards.

The 2022 Commercial Marine Project/Design or Manufacturer of the Year award identifies product manufacture, design, and shipbuilding within the Commercial Category in the Australian commercial marine sector.

The 2022 Marketing Strategy of the Year award acknowledges the success of an innovative and effective marketing strategy implemented between January 1 – and December 31, 2022

As Australia's only outboard manufacturer and only electric outboard manufacturer, we are working at the cutting edge of the marine industry in electric outboards, electric boats, and electric jet skis.

See the AIMEX Link to the Awards

Electric Boat Propulsive Power Explained.

Why kW to hp conversion formulas aren't that helpful in electric boats

One of the first questions people ask us is what horsepower does a kW engine equate to?

And often they have heard of the international hp to kW conversion formula. Which is 1kW = 1.34102209 hp

This is fine, in theory.

However, in practice, we find that calculation is not at all useful.

Why?

Because it doesn't take into account the instant torque. And the advantages of electric in the low to mid-range RPMs. The RPMs you actually need to get on the plane or get going - or dock for that matter.

So that's why we refer to propulsive power at the propeller as the important power equation. And why we comfortably say that whatever propellor the ëlectric outboard can drive, that's the hp equivalent.

So let us explain how this works.

In a combustion engine, the engine has to develop enough RPM (revs per minute) to reach idle speed. This usually occurs at around 1000 RPM, and you are in idle until that point.

Now you can get into gear and start to develop the advertised hp. But the fully advertised hp doesn't occur until the engine has reached around 5/6000 RPMs. So if you are at mid-range, you have not got all the hp of the engine available to you. An example would be a 40 hp outboard, which would only have around 25hp or less available at the low to mid-range of its RPMs.

Now electric outboards behave very differently. They have full power (instant torque) available from the first turn of the propeller. And a flat torque curve.

This power is important in planing boats, as you want to efficiently get out of the displacement hole and on the plane. Then you can reduce power (and amp draw).

In displacement boats, this instant torque gives you high torque at the low range RPMs - perfect for creating that momentum you need to get the boat traveling. The ideal for displacement boat efficiency is to use the biggest propeller you can, turning at the slowest rate.

So back to propulsive power.

When you are looking at electric outboards, we will ask you what propeller your current outboard turns (pitch and diameter). From there we can work out which is the right kW outboard for your boat. By the way all our outboards are made in Australia.

For further information

New report says the industry will be worth $USD 20 Billion

That's the prediction of a report from IDTechEx estimates that “the market for hybrid and pure electric boats and ships will rise rapidly to over $20 billion worldwide in 2027“. 

While EClass Marine has been one of the first manufacturers, and still the only electric outboard manufacturer in Australia, the report says there are now more than 100 marine electric manufacturers worldwide.

These companies are working on everything from electric ferries and new hybrid container ships, to the small kW trolling motors now loved by fisherfolk.

The first electric ferry in the Southern Hemisphere (NZ) had its maiden voyage just last week.

And Outboard giants Mercury and Yamaha have unveiled their first fully electric concepts. Although these seem to be lower kW offerings and not available to the market as yet, it is a sign of the industry direction.

At EClass Marine we think that once the marketing might of the large manufacturers gets behind electric boats, a lot of the skepticism will wash away.

Having said that, there is a lot of work to do for the mainstream adoption of electric outboard motors. Buyers have battery range anxiety (interesting as it is no different from having a fuel gauge and planning your trip), are not used to paying upfront for batteries.

Also, not many manufacturers are producing the 20kW (40hp) and higher electric outboards so common on many craft. EClass has put a lot of work into this segment with our 20kW Ultra electric outboard engine

The report also indicated that access to parts may be a barrier to electric outboard motor adoption. That's why at EClass we are using tried and proven 2 stroke outboard casings. Any corresponding Yamaha part and accessory will fit. No waiting for a proprietary part to be shipped, and a competent marine technician should be able to install it. We have a 3-year warranty on our electric outboard engines for private use.

Houseboats and pontoon boats perfect for an electric outboard as they have room for Lithium Ion batteries.

EClass Outboards are starting to get heaps of inquiries about retrofitting houseboats with electric outboards. It makes sense. Houseboats and pontoon boats are displacement boats - so they have less amp draw- as they are not trying to get the boat out of the displacement hole and once moving can use their own momentum. Having said that they do require a fair amount of propulsive power (torque) as they need to create that momentum. EClass Outboards can not only provide that propulsive power you need - from our 4kW HD electric outboard, equivalent to an 8hp outboard engine for smaller houseboats and pontoon boats) to our 30kW electric outboard, which will match or better a 40hp petrol outboard. E Class Outboards also have a range of propellers we can fit to our engines - to get that power vs amp draw exactly right for your boat.

Houseboats and Pontoon boats also have heaps of room onboard for Lithium-Ion batteries, and usually have a fair bit of roof real estate for solar. This is an area where petrol outboards cannot follow electric outboard motors. Solar charging of our Lithium-Ion batteries is possible with the right solar setup.

Imagine coming aboard for a weekend on your houseboat and the batteries are charged and ready to go!

As Australia's only manufacturer of electric outboard motors, we have the expertise to turn your houseboat into an electric boat. And you will reap the rewards of a quiet, low-maintenance system that does not pollute the waterways you love to be on.

See our electric outboard range

Contact us to discuss electrifying your houseboat or pontoon boat

Revolutionary new charging Bouy for electric boats and electric outboards

For all of you who mock electric boats and say how do you charge out at the reef!

Maersk Shipping has partnered with the world leader in offshore wind generation on a buoy system that will charge the electric outboard batteries and hybrid vessels using electricity from the wind turbines. The first use will be for wind farm service vessels but the long term goal is to use them for boats and ships of all sizes and have a significant impact on the use of diesel fuel.

Eclass Outboards have long believed that solar charging will set electric outboard motors and electric boats apart. We have a portable solar power station Ecoflow DELTA Max that does this job and can be kept on board.
Credit to plugboats

Eclass Outboards has a COVID safe plan lodged with Service NSW if you visit our showroom.

Including:
COVID safe QR code checking
Sanitizer available for hygiene and COVID safety
Contactless payment for product purchase

1.5m distancing for product demonstration
Product is wiped down after demonstration for hygiene and COVID safe practices
Mask friendly showroom
Online contactless inquiry and information
Staff sent home if unwell or showing COVID symptoms.

Our staff is fully vaccinated against COVID.

Eclass understands you want to keep yourself and your family safe and well. So we are taking every precaution as we want to see you out on the water enjoying an electric boat experience!

Contact us if you want to book an Eclass Electric Showroom demonstration of our electric outboard motors and Ecoflow Delta Max portable power stations.

And why we offer a wide range of propellers, including adjustable

To get maximum performance from a boat, we have a few variables we can work with: The kW of the electric engine, rpms we can set the engine at, and the propeller of the electric boat.

And the propeller, blade size, number of blades and pitch is key. Especially if you are wanting high torque for a displacement boat - like a yacht or pontoon or picnic boat or speed for a planing boat such as a speedboat or tender.

That's why our Australian made electric outboard motors don't just come with one proprietary propeller-like some other electric engines.

We offer a range of propellers for each of our electric outboards. And for all our electric outboard motors from 12kW the option includes a really cool Propulse adjustable propeller.

Propulse Propellers (pictured above) are made in Sweden from high-quality composite. 4 bladed for extra blade area (electric loves being under load) they have an easily adjustable pitch from 11" to 17".

All boats are different and require different characteristics from a propeller. This propeller allows you to adjust RPMs by changing pitch and adjusting the pitch to get the optimum performance from the boat. Takes a minute and you don't have to take the outboard off the boat. In an even better feature, we provide extra blades so if you damage your prop blade (so easy to do), it's the work of a moment to fix it. All you will need is a socket spanner.

With these propellers, you can increase or decrease the rpm in multiples of 200 RPMs by adjusting the pitch by a set number of increments. Plus there is an extra increment on either end of the scale. A lower pitch allows better acceleration and high engine revs. A higher pitch allows better running economy and lower engine revs.

We can also supply Propulse propellers for some of your existing boats, even if they are not electric.

Contact us to find out more or call Lynelle +61 408360084

For yachts, pontoon boats, picnic boats, houseboats and other displacement boats.

Equivalent to 10 hp

A lightweight but powerful electric outboard option for smaller displacement craft.

No one likes the noise and fumes of 10hp petrol outboards after a day of sailing, yachting, or picnic boating. Our 4kW HD electric outboard motor has been made in Australia especially for displacement boats. Lightweight at only 37kW it is easy to use with push-button starts and no maintenance. Stores anywhere as there is no fuel to spill. Ideal if you want to convert your boat into an electric boat.

This Pride Cheetah has a proud history as a race-winning boat. Now converted as a fully electric boat. With the recommended 40HP now being served by a 30kW Eclass Outboard and Lithium-Ion Batteries.

We've just released Australia's first 30kW fully electric outboard. For those of you wondering about the power of these engines, instant torque and a flat torque curve means it has the propulsion power at the propeller you'd be looking at in a 40HP internal combustion engine (ICE). Operating cost savings over 10 years are pretty impressive as well. Contact us for a comparison sheet of costs of running 30kW electric vs petrol.

Read More

Contact us for a comparison sheet

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