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Forum: Multihull Sailboats 11-12-2019, 10:45
Replies: 87
Views: 19,875
Posted By sailingharry
Re: Gemini 105mc conversion Diesel to EV?

Stu,


I must say that your patience and effort in discussing this matter are exemplary! I'm a mechanical engineer, and so this stuff is obvious to the point of being boring. I can't keep up...
Forum: Multihull Sailboats 07-12-2019, 07:06
Replies: 87
Views: 19,875
Posted By sailingharry
Re: Gemini 105mc conversion Diesel to EV?

Yes indeed. But they are outliers. Their sailing style does not match the vast majority of the sailing public. Many boats race across the ocean without using the engine at all -- that's sort of the...
Forum: Multihull Sailboats 07-12-2019, 05:29
Replies: 87
Views: 19,875
Posted By sailingharry
Re: Gemini 105mc conversion Diesel to EV?

The funny thing about all of these electric conversion threads, is they all look the same. lots of people talking about how great it will be, lots of people talking about how they're designing their...
Forum: Multihull Sailboats 06-12-2019, 12:18
Replies: 87
Views: 19,875
Posted By sailingharry
Re: Gemini 105mc conversion Diesel to EV?

Questions:
* Are you saying a 1kW solar panel will give 6.4kWh a day? Full power for 6 hours? That seems very high -- like double.
* How much power are you assuming for house loads? I use 2kWh...
Forum: Multihull Sailboats 06-12-2019, 11:09
Replies: 87
Views: 19,875
Posted By sailingharry
Re: Gemini 105mc conversion Diesel to EV?

It's worse than that. ICE power ratings aren't based on INPUT power, but on OUTPUT power. Beyond an engineering curiosity, or perhaps a global warming consideration (both are useful discussions),...
Forum: Multihull Sailboats 06-12-2019, 11:02
Replies: 87
Views: 19,875
Posted By sailingharry
Re: Gemini 105mc conversion Diesel to EV?

EV can work, if you are committed to making it work and accepting the compromises. On a Gemini, you will be hard pressed to get even 2KW of solar, so that's your power source. And half of that will...
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