Outboard Poll

Poll : What primary method do you use to power your Dinghy ?

  • Electric Outboard

    Votes: 21 13.3%
  • 2 Stroke Outboard

    Votes: 66 41.8%
  • 4 Stroke Outboard

    Votes: 49 31.0%
  • Oars

    Votes: 22 13.9%
  • Other

    Votes: 0 0.0%

  • Total voters
    158
We have a 3.3hp two stroke for the tender but inherited an electric outboard and dinghy when we bought a Norfolk Gypsy late last year. I tested the electric outboard last weekend and was very impressed - they have come a long way from one we had many moons ago that would barely move the tender in a bit of a current and required a car battery to be lugged aboard.
 
Given LiPo / LiIon batterys and Brushless motors today - the power of electrics is amazing.

I have model aircraft of moderate power / size and those BL motors are kicking out over 1Kw ..... many larger models are kicking out multiple Kw's ... which the average car battery could never handle.

The trick of course is to marry Watts with Run time ...
 
And no voltage sag under load. And no damage from being discharged as low as their inbuilt protection system will allow. And near linear recharge rate allowing rapid charging. And thousands of cycles before showing any loss of capacity.

As a long term user of LiPo / Lithium's .............. RC Modelling turned to Lithium long before anyone on boats did ! In fact the model world has led to a lot of the control systems and boards for Lithium cells.

Voltage sag occurs to all cells - but its the amount of sag and is dependent on the load .... I can regularly see sag of 0.5V or more when powering models .....
Inbuilt protection : that is an addition that came about to allow use in various where user would often not be aware of the need to stay above a certain voltage ... ie with LiPo - stay above 3V as extreme, 3.2V as norm. Lithium Ion as used often for O/B and others such as Computers etc. have various voltages .... so careful check on nominal and max charged specs.

Problem is though ... unless its Lithium Iron - most lithium cells are damaged by being always charged up ... and is why we go to great lengths with LiPo to set storage charge level when not in use ..

To put it simply ... if a Car battery does the job - that can be a better solution for the non Lithium savvy user.
 
Just bought an ePropulsion Spirit Plus as I got fed up with the hassle and general unreliability of small 4 stroke outboards - in my experience. So it arrived last week and I tried it for the first time at the weekend. It's brilliant and I am very pleased with my purchase, albeit a rather expensive one. Frankly, other than the purchase price I cannot see a single advantage a small ICE outboard has over an electric. It really is a game changer for tenders.
 
For a lot of potential electric outboard users, the weight is going to be the overriding factor. I’m just considering li-ion on my boat as its a miltihull, so lugging lead around is a bad idea. For use in a tender, it’s portability for recharge that will decide people. Lifting a 16kg battery out of your tender after every serious use is a non starter. For me, it wasnt worth the effort, when I could carry 50 times the energy in a 5 litre fuel can. Usable capacity(not necessarily the capacity of the fuel can of course) and portable weight, at a price you can afford, and I reckon we’d all have electric outboards.
 
For a lot of potential electric outboard users, the weight is going to be the overriding factor. I’m just considering li-ion on my boat as its a miltihull, so lugging lead around is a bad idea. For use in a tender, it’s portability for recharge that will decide people. Lifting a 16kg battery out of your tender after every serious use is a non starter. For me, it wasnt worth the effort, when I could carry 50 times the energy in a 5 litre fuel can. Usable capacity(not necessarily the capacity of the fuel can of course) and portable weight, at a price you can afford, and I reckon we’d all have electric outboards.
Electric outboards already work well for some. Where they tick the box for me is the scenario where you arrive at the boat, grab the electric outboard out of the boot, fit it on the dink and potter out to the mooring. At the end of the weekend you do the reverse. No smelly fuel in the car. Easily charged battery at home ready for the next weekend. A good solution.
It doesn't work for us as liveaboards cruising the Caribbean. We live at anchor so the dinghy is used extensively covering lots of distance and often lots of gear. A 15hp two stroke is our chosen propulsion. We can plane with four adults. We can dinghy a mile or two to the chosen dive spot carrying both of us and all our dive gear on the plane in comfort and safety.
It carries all our kitesurfing gear and acts as rescue boat when necessary with a top speed if 22kts. Nothing wrong with electric outboards but they need the right application
 
TBH .. when it comes to portability .. function .... there's a lot to be remembered about the old Seagull OB ....

The advert showing a crewman with a Featherweight 40 over his shoulder was not far from the truth ........... try that with todays OB's

Many years ago ... came off my Langstone mooring in the Redcrest with Featherweight 40 powering to shore ......... got to the slipway and as we climbed out of the dinghy - the Seagull fell of into the water ... I don't think I am only one who had the Redcrest OB bracket fail !! Literally paint held it together till we got ashore.
Retrieved Seagull ... stood it upright ... got the freshwater hose on it ... then put it in the Club OB test barrel ... started up and ran fine. Years later stupidly sold it !
 
TBH .. when it comes to portability .. function .... there's a lot to be remembered about the old Seagull OB ....

The advert showing a crewman with a Featherweight 40 over his shoulder was not far from the truth ........... try that with todays OB's

Many years ago ... came off my Langstone mooring in the Redcrest with Featherweight 40 powering to shore ......... got to the slipway and as we climbed out of the dinghy - the Seagull fell of into the water ... I don't think I am only one who had the Redcrest OB bracket fail !! Literally paint held it together till we got ashore.
Retrieved Seagull ... stood it upright ... got the freshwater hose on it ... then put it in the Club OB test barrel ... started up and ran fine. Years later stupidly sold it !
And plenty more people have the same story, those motors are incredibly robust. Electric OBs are OK with a dunking, it's the modern 4 strokes which are less able to deal with it. I will, no doubt, skip the clean 4 stroke and go electric when my 2 stroke bites the dust. However, the last 50 years seem to have had little impact, it's a bit scruffy and faded, but does the business. I guess it's really only the money that stops me upgrading, I could buy a jib for the price of an electric outboard. I hope they come down, at least in real terms.
 

Other threads that may be of interest

Top