Forum Replies Created
-
Posts
-
Hi Rick and Patrick. Thanks very much. I’ll look into both units. Did you modify your iceboxes at all?
Also, I’m looking into sizing the units and I’m estimating our ice box volume to be more than 10 cubic feet. Do you know what size ice box your units are designed to cool?
Thanks again for the info!
If this is true, it makes me wonder if we have this so called “tall ketch”. Anyone have the measurements for the “tall” ketch vs “short”?
I believe our mainmast is around 48’.
Ryan and Kathleen
Juniper
1983 Ketch
New YorkRich,
I think the best way to go is to use a 48v DC generator so no conversion needs to take place to power the motor. Then house AC loads are run off the inverter. This at least takes AC to DC conversion out of the equation.
My oceanvolt quote recommended this 11kw 48v DC genny: https://www.fischerpanda.de/Generator-Datasheet-AGT-DC_11000-48V_PMS-48_DC_-_400_Hz_112.htm
Unabated,
I had the same concern. However, it seems that as long as the generator is sized properly, a hybrid electric system will provide even greater range in a “get out of dodge” emergency.
Ryan
Thanks so much for sharing Evan. I ask these questions because I am very interested in doing pretty much exactly what you did.
I have a solar/electric dinghy setup and love it.
Would love to see photos of your install whenever you get around to it.
All the best and good luck with her.
Ryan
JuniperRich, your post gets to the heart of what I’m wondering – How do you drive a 20kw motor with an 8kw genny without dipping into your batts? Evan, are you achieving hull speed without running the motor at full power?
Attached here are the kw/speed/range charts I received from Oceanvolt in their quote for my 424 which was also for a 20kw motor.
Ryan
Attachments:
Screen-Shot-2018-05-09-at-10.17.43-AM.png
Agreed. SUPER awesome. You find that the 8kw genny is enough to direct power the motor at hull speed? Is this a DC generator?
Would love to hear more. Thanks for posting Evan.
Ryan
JuniperThis is a great video from a couple with what looks like a DIY electric motor system on a heavy displacement, full keel boat.
Hi Ron,
We are based in Sheepshead Bay in NYC. There’s a chance we will be cruising LI sound that week, but if we are in the city, you’re going to sail right by us.
Happy to share some local knowledge if you’ve never been up this way.
Drop us a line if you’d like to meet up – ryanpdoyle (at) Gmail.com
All the best,
Ryan and Kathleen
1983 424 Ketch
JuniperWe were really thinking of going electric hybrid, but then last week I got my first quote for an electric hybrid system from OceanVolt for our boat. $48k and that doesn’t even include install labor costs or the generator. Yowza.
I’m still trying to find good electric hybrid options. The best option might be building my own system from scratch.
Hi Bob,
I have not heard of there being any issues specific to 424 fuel tanks, but these boats are now at least 35 years old, so the fuel tank and lines should of course be inspected carefully. Our fuel tank is aluminum. It is likely original and it seems fine. No corrosion or leaks.
Access is decent. You can see the top, forward, aft, port, and starboard sides of the tank easily through the cockpit lockers.
Ryan
1983 424 Ketch
Juniper
New YorkWe would love to meet up as well, although our summer cruising dates are still up in the air. We are based in NYC and will likely head to New England for a few weeks in July or August.
If anyone organizes, please keep the list posted.
Interesting. Ours must be different – our main sheet winch is located on the port side of the cabin top to the left of the companionway.
Juniper
1983 424 Ketch
