Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 05-03-2018, 11:21   #1
Registered User

Join Date: Jun 2014
Posts: 7
ePropulsion Spirit electric motor

Wondering if anyone has any experience or comments on the ePropulsion Spirit 1.0 electric dinghy motor? I had a chance to demo one yesterday, on a 12 ft inflatable dinghy. It seemed to perform decently, getting up to I think 3 or 4 knots, with no current or wind to fight. It will never get the boat to plane, but supposedly will last 1 hr at full throttle, more if you just putt along. It is supposed to be equivalent to a 3 hp gas motor. I don't like giving up the power of an outboard, but dang the savings in weight, gas engine problems, noise, pollution seem worth it. I'd prefer to have the next model up (6 hp equivalent), but it requires a honking big battery that costs like $3000 (just for the battery) which weighs 65 lbs, so no weight savings (the Spirit is 49 lb including battery). Thoughts?
jmckay123 is offline   Reply With Quote
Old 05-03-2018, 17:05   #2
Senior Cruiser
 
StuM's Avatar

Cruisers Forum Supporter

Join Date: Nov 2013
Location: Port Moresby,Papua New Guinea
Boat: FP Belize Maestro 43
Posts: 8,504
Re: ePropulsion Spirit electric motor

From their website:

"The 1KW Lithium-ion battery". If they don't know that batteries are measured in KWh, not KW, I'd put little faith in anything else their marketdroids have written.

"one battery works for up to 1 hour" - the classic "up to" which actually means " generally a lot less than".

"And without gearbox, this electric outboard motor will greatly lower - even eliminate noise " -
how much noise does a gearbox make?

And yet again we have the "magic electric Horsepower" from an EP vendor.

"Propulsive power - 500W"
"Comparative gasoline engine propulsive power" - 3HP

I guess it depends on how you define "comparative". It certainly doesn't mean "the same as"or to use your phrase "equivalent".
500W = 0.67HP, regardless of the energy source.Generally they mean that the "static thrust" or "bollard pull" (at 0 knots) is about the same as a gas outboard of the same size. But you don't use an outboard driven dinghy as a tug
StuM is offline   Reply With Quote
Old 05-03-2018, 17:30   #3
Registered User

Join Date: Jan 2017
Location: Everywhere
Boat: 2011 FP Orana 44 M
Posts: 761
Re: ePropulsion Spirit electric motor

I spent quite a bit of time pouring over the numbers on the e-Propulsion offerings and they do seem to be the best bang for the buck. But I wouldn't have less than the 6kW model with TWO batteries and then you're looking at $10K and a lot of weight.

Really what I'd like is the Torqeedo 10kW but they don't sell a tiller model. Also it's crazy expensive, and would need a ludicrous amount of batteries to make it useful.

Maybe in another 5 years of development.
LoudMusic is offline   Reply With Quote
Reply

Tags
electric, electric motor, motor, propulsion

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale: PAR Electric System Water Pump and JABSCO Electric Bilge Pump hanks Classifieds Archive 3 05-03-2014 19:03
Electric tender motor GlendaJay Auxiliary Equipment & Dinghy 12 25-12-2013 09:15
For Sale: Electric Motors and hydraulic electric lifter arms 4 sale Sea Shoes Classifieds Archive 0 25-03-2012 07:46
500: Lagoon 500 - Will There Be an Electric Motor ? videorov Lagoon Catamarans 23 22-10-2008 19:49



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 11:35.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.