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Elco outboards
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I'm considering powering my new Lillistone Fleet build with an Elco EP-9.9 outboard. Battery bank will be 48V 125Ah LiFePO4.
Anybody have any experience with these motors? Particularly in a semi-planing application? (Fleet will do 11+mph with a 4hp gas outboard and two adults aboard, over 20mph with a 9.9 gas outboard.)
Reliability, efficiency, repairability?
Thanks!
Neil
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Neil, Are there more details available on the boat you will be putting these on? I would be very skeptical of getting the speeds you're looking for with an electric outboard, and would strongly suggest you try one motor first. I don't have experience with Elco's, but have tried the 48V Torqeedo. Back of the envelope - 48V x 125Ah =~ 6000WH. Assuming the engine will burn 3000-4000W at high speed, you'll have less than 2 hours run time - especially if you want to have a reserve.? After that, there will be a significantly longer charge time. Will this be a "rental fleet"?? What is the usage model? John
On Thursday, July 15, 2021, 11:07:09 AM CDT, N. Simms <fneilss@...> wrote:
I'm considering powering my new Lillistone Fleet build with an Elco EP-9.9 outboard. Battery bank will be 48V 125Ah LiFePO4.
Anybody have any experience with these motors? Particularly in a semi-planing application? (Fleet will do 11+mph with a 4hp gas outboard and two adults aboard, over 20mph with a 9.9 gas outboard.)
Reliability, efficiency, repairability?
Thanks!
Neil
Get
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Google Lillistone 'Fleet'. A light, sleek 15' hull for low power. If it will do 11 mph on a gas 4hp, I should be able to get decent range out of 6kWh for tootling around the (protected) backwaters of coastal North Carolina. If it turns out to be slower than that, that will be fine too.
I will be testing the boat with my old 3.3hp Nissan 2 stroke, and my Torqueedo 800, before going for a higher end electric setup. I'm just looking for anyone who has experience with the Elco outboards. |
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Ah - very nice!!!? ? Sorry - I thought you meant a fleet of boats, not a "Fleet" design. It'll be fun to see if anyone can provide an answer on the Elco. It would also be interesting to see the theoretical max speed of the 48V Torqeedo vs. the theoretical max speed of the Elco, based on the pitch of the prop. What were you planning to do for your battery pack? For proof of concept testing, and then as a "backup / get home" option after you get your main bank, you might consider a 30AH 48V e-bike battery.? ?At low power levels (700W), you can still get over an hour out of a 30Ah e-bike battery, and 700W will probably be enough for a slow cruise on that boat.
On Thursday, July 15, 2021, 12:01:21 PM CDT, N. Simms <fneilss@...> wrote:
Google Lillistone 'Fleet'. A light, sleek 15' hull for low power. If it will do 11 mph on a gas 4hp, I should be able to get decent range out of 6kWh for tootling around the (protected) backwaters of coastal North Carolina. If it turns out to be slower than that, that will be fine too. I will be testing the boat with my old 3.3hp Nissan 2 stroke, and my Torqueedo 800, before going for a higher end electric setup. I'm just looking for anyone who has experience with the Elco outboards. |
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I am building a 23 ftr power tri,using a 20 HP Elco, 4 batteries and going to add solar following this On Thu, Jul 15, 2021 at 12:07 PM N. Simms <fneilss@...> wrote:
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On Thu, Jul 15, 2021 at 10:17 AM, john wrote:
I wonder that, too. I've queried the Elco folks, asking if the prop is some sort of standard mount (it appears pretty conventional). I'd like to play with pitch and possibly diameter if possible.
I own a Ping 48v 20AH LiFePo4 ebike battery that I intend to carry for backup...
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Neil, don't forget to splash-proof everything !! Even on a calm day, other boat's wakes may give you a bumpy ride. What is the planing speed of your "flying leaf" (2 persons + motor + batteries) ? The energy consumption (per mile) goes down, when she gets up planing. But not with a wrong prop. In a sailboat we don't consider the effect of planing, and can plan for one optimized prop. Your case is different. For longer range of your LiFePO's, you could actually use TWO motors - one small for cruising at slow speed with an optimized big prop (low pitched), and one big (the Elco) for planing speed, with a standard high pitch prop. If you have the bucks for that, of course. You could use higher voltage than 48V, if allowed. Then you don't need a big motor for planing. Any photos of your boat ? Carsten
On Friday, 16 July 2021, 00:07:10 GMT+8, N. Simms <fneilss@...> wrote:
I'm considering powering my new Lillistone Fleet build with an Elco EP-9.9 outboard. Battery bank will be 48V 125Ah LiFePO4.
Anybody have any experience with these motors? Particularly in a semi-planing application? (Fleet will do 11+mph with a 4hp gas outboard and two adults aboard, over 20mph with a 9.9 gas outboard.)
Reliability, efficiency, repairability?
Thanks!
Neil
Get
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Hi Neil, I am also looking to buy an Elco motor but a 20hp version to power my 18' catamaran. For my cat it is a semi planing hull and I suspect I will have to go to a higher pitch prop. That may be something you should look into. Perhaps look at the pitch of the gas version before ordering the Elco. They do sell a higher pitch prop and you may be able to get that instead of the standard one when you buy. I have heard all good things about Elco and that is why I will be buying one as soon as the border reopens as I am in Ontario. The factory for Elco is in lower NY. Regards Phil
On Thursday, July 15, 2021, 12:07:09 p.m. EDT, N. Simms <fneilss@...> wrote:
I'm considering powering my new Lillistone Fleet build with an Elco EP-9.9 outboard. Battery bank will be 48V 125Ah LiFePO4.
Anybody have any experience with these motors? Particularly in a semi-planing application? (Fleet will do 11+mph with a 4hp gas outboard and two adults aboard, over 20mph with a 9.9 gas outboard.)
Reliability, efficiency, repairability?
Thanks!
Neil
Get
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Update: I've completed the build of my Fleet. My battery cells are stuck in a container off LA, and the delivery of my Elco has been delayed several times due to supply chain issues for motor parts.?
So I picked up a Mercury (Tohatsu rebadge) 6hp 4 stroke to use until I can get the electric config delivered and set up. The boat runs beautifully, with a top speed of 17mph solo, and about 13mph with a passenger. Easy cruise is 10-12 mph, with the motor getting 25-30 mpg at that rate (30 mpg solo, 25 mpg with passenger and some gear). It can be driven at any speed desired (no 'step' to planing speed). If the little motor wasn't so noisy and rough I'd be tempted to just stick with gas power, but the prospect of quieter, smoother, cleaner electric propulsion is still very appealing, if I ever get the components delivered! Will update again when I've got the electrification complete. Neil |
trikini2008
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