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  Topic Review (Newest First)
03-14-2012 11:16 AM
Re: Diesel-electric hybrid

Thanks for the heads up on the Lynch, but they priced themselves out of consideration by me.
03-14-2012 09:01 AM
Re: Diesel-electric hybrid


It doesn't sound like you are planning on using them but if you are, the Lynch motors have been very problematic for me and I have seen a few catastrophic failures. The etek ones have been fine but the 96 and 120V Lynch ones have been disappointing. I haven't really looked around to see whether other people have had the same experiences but it was enough to make me use other motors on future projects.
03-14-2012 12:57 AM
Re: Diesel-electric hybrid

I know, have been playing with a lot of numbers. For the dinghy, the Torqeedo is perfect, but I don't want to pass up the power in the sails, plus it could be used to keep down swell surfing speed in check to lessen a chance of a pitch pole.

Here is a new team up of Lynch/Lemco and Yanmar. So, I'm far from the only loose screw that is going to make this work. I relish the challenge. A couple of years ago the good folks on the hot rod forums said a fast car would only get 3~5 MPG. My project was to design and build a car/power train combination that could out corner a Corvette, get 30 mpg, and run the 1/4 in 10.8 @ 132, which I did. The hydrid drive for the sail boat is just another challenge.

Seagoing Hybrids - Hybrid Electric Marine Propulsion
03-13-2012 11:10 PM
Re: Diesel-electric hybrid

Originally Posted by deckofficer View Post
Torqeedo for their fine engineering and light weight would have been on the top of the list, but their refusal to allow regen killed them off for me.
Are you really sure regen with the propulsion prop is worth the compromises it causes?

I understand the allure of regen it sure looks like it should work.
Everyone who offers it that I have interviewed has always said well I'm still tweaking that it really don't give me anything yet but soon. I've been hearing but soon for years now.

Maybe you would be better off with Torqeedo as a pure play totally optimized system.
IOW with a whole lot of effort and tweaking and boat speed loss and prop swap outs you end up getting 5% back in the battery with regen you might easily with no work no loss of boat speed get the same 5% with the Torqeedo.

It really comes down to the numbers.
03-13-2012 06:37 PM
Re: Diesel-electric hybrid

I would like to create a place for everyone thinking about electric, and diesel-electric propulsion, fully electric galley, electric dinghy, diesel DC gen-sets, and 48 VDC (and higher) inverters, can communicate ideas, links, experiences, and pictures. Since I have been the victim of thread closures when such topics veer off, I have added this topic to my own forum. When your on your own turf, you know posting history will not be lost. My forum is a rather oddball mix of subjects, 80% hot rods (T-buckets) 10% for family care givers, and 10% sailing/cruising. This is where you will find the topic "Integration of systems" in the "Hybrid Drives For Sailboats" thread that is part of the "SAILBOAT CRUISER'S FORUM". All are welcome, please give links to all the breaking news on hybrid drives that you have come across here....
Integration of systems
03-07-2012 11:30 PM
Re: Diesel-electric hybrid

Doing that right now would be expensive to I just used sails as an example. It will all changed once he gets the mass production setup. I actually talked him out of a small sample today that I am going to fly like a flag to see how it holds up in the sailing enviroment for him. He said maybe two or so years until it hits the selves...yay!!!!!
03-07-2012 02:44 AM
Re: Diesel-electric hybrid

That would be a game changer, because thanks to China entering the solar market, price per watt has dropped from $5 a watt (what I paid 20 years ago) to $1.13 per watt today. If it drops to $0.11 per watt I'll just say "screw the expensive sails" give me a light, mastless cat and I'll cover it with solar.
03-07-2012 02:38 AM
Re: Diesel-electric hybrid

Using a system to generate a little instead of it sitting their is always the way to go. I am not sure i you were responding to me but I was talking about the force required to spin the gene. (the electrical resistance) Running the motor at a desired speed and getting and giving power is a great idea. As far as what I was saying about wind or water generators I just meant if your purpose is to generator power with it then go with the wind less conversions of energy invloved. But if you are using an existing system to pick up a little lost potential its a different story.

Also on a related but not addressed topic:
A researcher that works in my department has devolped a fabric solar colector that looks like it will be strong enough for sails. Just something to dream about. It is being patented now and but still has a couple of years before it hits the market. He told me he could have some sails made up for my boat if I want to pay the 600k it would take the weave them I(by hand). I told him maybe when we get paid again! As of right now there is no mass producing tech but he is working on that and estimates once it is in place it will have a sq ft price of about 1/10 of todays solar cells. not bad huh?!
03-07-2012 12:48 AM
Re: Diesel-electric hybrid


This was what I was hoping for, someone from the industry coming out of the woodwork. The reason in my case for the 8Kw diesel DC gen-set is I'm a cruiser, and as such there are times I need to motor and I neither have the space for anything more than about 900 watts of solar, or the weight carrying ability (light cat) for more than around 25Kw/hr of lithium batteries.

Also the PDQ 36 isn't the LRC model, so is set up for twin outboards.
03-07-2012 12:33 AM
Re: Diesel-electric hybrid


We have built 275 electric packets and 340 sailboats with electric drives, so speaking from position as the most experienced sailboat builder in electric propulsion. we have been installing solar panels on our sailboats for 6-7 years.

For a 9,000 lbs vessel, I would look closely at the Mastervolt pod systems. My preference would be for their regen Pod, even though it is 40% more than the standard pod.

the 10kw diesel genset concept seems to me just adding needless complexity - it is after all a sailboat
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