I have to concur, you should be able to push your boat pretty good with an EU2000. It really doesn't take much power to get that first few knots. I can push the Arc, a 45 foot, 20 ton conversion at 2 mph on 20 amps, which at 48V is about 1 kW. Now keep in mind this is in CALM conditions and pushing against any kind of weather will change the equations significantly but I've also had occasion to plow into some fairly heavy weather at relatively low amperages and still make way. Although if your bucking a 3 knot current, it can become a lost cause so keep your tides in mind.
Funny story:
On our recent passage to Lake Santee in South Carolina we were passing through the lock at the dam. It's an 80 foot lift and somewhat dramatic as you rise in the boiling cauldron to the lake level. Well when we got to the top and the lock doors opened I engaged the drive to exit, nothing happened. I quickly checked the engine room and the driveline was spinning away but the boat wasn't moving. A look at the stern confirmed there was no rotor wash. Holy crap, our prop must had fallen off the boat in the lock.
So here we are in the lock with no prop, dead in the water. In total desperation I hip tied our little dinghy with a 55# thrust Minnkota trolling motor on it and set it at full throttle. To my utter amazement the Arc began to move forward and pushed us out of the lock. Once out of the lock we were able to make a full 1 mph. Thankfully it was pretty calm or this probably would not have worked but we did have a mild headwind so it was definitely the Minnkota doing the job. There was a little cove about a mile away and we were able to creep over to it in about an hour, drop the anchor and install my extra prop.
So it really does only takes an amazingly small amount of power to push pretty big boats slowly.
Capt. Carter
www.shipofimagination.com
On Thursday, July 27, 2017 4:29 PM, "Mike biankablog@verizon.net [electricboats]" <electricboats@yahoogroups.com> wrote:
I can move my 16,000 lb 30 foot boat at 3 knots with just my NG-1 battery charger with no problem. I'm not even maxing out the power output of the Honda to do it. You should have no problem with your boat using the Honda 2000 and appropriate battery charger/power supply. I have found that I use the Honda more for battery charging at anchor than for hybrid operation. In nine years only once did I actually use it for a 40 mile stretch on a windless day and it worked well. I chronicle it here: ELECTRO SAILING AROUND NEW YORK: PART ONE
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Posted by: Carter Quillen <twowheelinguy@yahoo.com>
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