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Search took 0.00 seconds. Search: Posts Made By: harlem24
Forum: Multihull Sailboats 09-12-2019, 11:36
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

Why the F would one go 200 miles with 6kn on motor?
We are still talking sailboats, aren't we?
Forum: Multihull Sailboats 07-12-2019, 09:36
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

When I take a look at what maintenance is to be done on an ICE on a boat and what can go wrong/break, I am not so sure about the costs.
But hey...
Forum: Multihull Sailboats 07-12-2019, 06:40
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

Posted some YT channel who are 100% electric, but all monos.
Sailing Uma, rigging doctor, Beau and Brandy sailing.
Uma and rigging doctor both crossed the atlantic without problems.
Forum: Multihull Sailboats 07-12-2019, 06:36
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

Under 5k€ per 12kWh pack. At a marina you should get 240V/16A, so it would take about 4h to charge the battery from zero to full. Even if it's 100V/16A it's possible to do a full charge over night.
...
Forum: Multihull Sailboats 07-12-2019, 01:07
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

Talking weight, a 3-cylinder Diesel engine weights about 300lb, the 36 gal diesel on the Gemini is about 240lb. So all together we are talking 500lb for coventional propulsion.
1 12kWh 48V LiFePo4...
Forum: Multihull Sailboats 06-12-2019, 13:13
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

Sorry, forgot the h...;)
0,7-0,8kW for 8h. In the summer you should get enough sun from 8 a.m. to 4 p.m. Especially when you are somewhere in the southerly degrees.
You don't go full power,...
Forum: Multihull Sailboats 06-12-2019, 12:01
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

So, you can place about 1kW of Solar on a Gemini if you build an arch.
With that you would be able to produce about 6,4kWh of electricity over a normal day, with good weather even more.
For sure...
Forum: Multihull Sailboats 06-12-2019, 10:53
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

Hm, Silent Yachts use a cat, Engergy Observer which is completely run by solar is a cat. So there seems not to be such a big issue with two hulls...
Even the premiere vessel for the launch of Volvo...
Forum: Multihull Sailboats 01-12-2019, 13:21
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

Sailing Uma and Rigging doctor both crossed the Atlantic and both are non-professional sailor with electric engines and very limited funding...
Forum: Multihull Sailboats 01-12-2019, 13:19
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

As I said, look at the Sailing Uma website.
For them it seems to work. They been in all of the caribean, up the east coast and just crossed the Atlantic to England.
They have two solar panels and...
Forum: Multihull Sailboats 01-12-2019, 05:25
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

Electric yachts proposed a 20kW motor for their boat.
Forum: Multihull Sailboats 01-12-2019, 04:38
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

And most of the time they sail, cos it's a sailboat...;)
Forum: Multihull Sailboats 01-12-2019, 04:36
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

Just looked at their website: Electric yachts says that they need 5.7kW to go 5.6kn.
With a 7,5to 36ft boat.
And they actually have now a 4.8kW motor with direct transmission.
Forum: Multihull Sailboats 01-12-2019, 04:22
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

Have a look at this, some interessting insigts.

https://www.sailinguma.com/the-motor
Forum: Multihull Sailboats 01-12-2019, 03:40
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

Not sure, but if you check the electric beke vids of sailing Uma, they test their electric motor somewhere in a channel in Florida and afair they needed 20-30A with a 48V system to go around 4-5kn....
Forum: Multihull Sailboats 01-12-2019, 03:05
Replies: 87
Views: 19,888
Posted By harlem24
Re: Gemini 105mc conversion Diesel to EV?

Hi,

take a look at some yt channels like Sailing Uma, Rigging doctor or Beau and Brandy sailing. They all converted sailboats to electric. Beau and Brandy used the batteries of a Chevy Volt in a...
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