Tuesday, March 27, 2012

Re: [Electric Boats] Re: Introducing the 'Arc'himedes

 

Tim,
 
The boat came with the autoprop and unfortuneately it is about worn out so I'm not sure if I'll have it rebuilt or go back to the original 3 blade prop that came with the boat. The old owner did do some comparisons and the autoprop definitely increase the boat performance, by about 15%. I could go back to the old prop and just change the gear ratio of my sprocket to compensate. I'm thinking a couple of sprockets might be a lot cheaper than having the prop rebuilt but I'll look into it before I make a decision.
 
Regen from the prop is not really an option because I don't have sails to drive it. I think the controller does have a regen feature but the drive train would have to be significantly modified to use it and with 5kW of solar I'm hoping I won't need it. I'm leaning toward eventually scrapping the ancient diesel and putting in a small diesel genset that puts out 48V for when the sun is not shining.

My first mate is the blogger but I'll tell her about the eyefi card. I've never heard of it before.
 
Carter
 
 
 
 
From: Tim <haywardt@gmail.com>
To: electricboats@yahoogroups.com
Sent: Tuesday, March 27, 2012 10:50 AM
Subject: [Electric Boats] Re: Introducing the 'Arc'himedes

very nice. I will be following your blog.

Have you used an autoprop before?

Do you have a regen capable controller? I would be really interested to know how the autoprop does in regeneration mode. I think it might perform really well.

I have a ton of questions from hull design and construction to your route. I will lurk on your blog a little while and see what develops.

I recommend an eyefi card for producing your blog.



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