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Re: ECO 520 anyone building?
Use the ECO 6. Beam as stated
?c/c means center line hull to centerline hull. The original has a c/c beam of 2,24m The overall beam is 2,84 m. Why do you want this over-beam (3,6m) I can not understand? Depending on the waters you are sailing, a bigger beam can lead to slamming on the bridge deck! Between the bulkheads, you are free to change the deck region. The cockpit can be for instance 3 m long without the entrance bulkhead. B.K. |
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Re: ECO 520 anyone building?
I like the design of the ECO 520 but it's a little shorter than I want. Would it be easy to extend the ECO 520 out to 6 meters (20 feet) length and add beam to 3.6 meters or would it be better to go with the ECO 6 and change the deck design so there is a bigger open deck and add the beam to 3 6 meters. Which way would you choose. Lengthen and widen or widen and change up deck area. I want a 6 meter hulls so there will be plenty space to move around when fishing. On Sun, 27 Aug 2023, 3:39 am Bernd Kohler, <ikarus342000@...> wrote:
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Re: ECO 520 anyone building?
Okay, before, here are more misunderstandings.
Epoxy is a very stable material. It is a nuisance that this comes up again.?
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Standard Epoxy. The standard Epoxy you will get from your seller will have all the properties necessary to build your boat.?
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Generally, this material will cure at 20 degrees C-elsius in 24 hours.?
It will be fully cured after 60 hours.?
It will handle any ambient daily temperature in the plus and minus regions you will encounter.
Epoxy can get thermoplastic in the curing period and will have only a strength of 75 %
After that, it is stable, unlike polyester or vinylester, which never finishes hardening and gets brittle.
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I was talking about the explosion of the SC 435 hull to underlay the fact that epoxy stays under high temperatures stable.
If the epoxy had gotten weak, thermoplastic, a seam would have been opened, and the hull would not have been exploited.??
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Bernd Photo: SC435 Island |
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Re: Photo Afbeelding van WhatsApp op 2023-08-17 om 19.41.12.jpg uploaded
#photo-notice
Hi Curtis,?
These batteries are LFP pouche type. They came from a home back-up unit which was too small, and was replaced by a bigger one. Every of the 3 batteries is 300 Ah at 24 Volt. I'll use one of these for "household", and the other 2 in serie with each other to get 48 Vdc for the e-drives. Regards, Jack |
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Re: Photo Afbeelding van WhatsApp op 2023-08-17 om 19.41.12.jpg uploaded
#photo-notice
Jack, fascinating build photos. Thank you for sharing them. What are you using for traction batteries? Repurposed EV battery modules? What is the capacity? Thanks, Curtis |
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Re: Photo Afbeelding van WhatsApp op 2023-08-17 om 19.41.12.jpg uploaded
#photo-notice
Hi Bernd,
I created my own e-drives with the uses of secondhand Suzuki bottom end outboards, and Golden Motor 3 Kw BLDC motors on top. Everything between the Bottom-end and Motor is home made by myself. Default prop on this bottom end is a 160 mm, but I removed the exhaust, so a 200 mm prop will fit. We will see how this is working... First I've to get the boat in the water. Regards, Jack |
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Re: Photo Afbeelding van WhatsApp op 2023-08-17 om 19.41.12.jpg uploaded
#photo-notice
Thank you for the photos.?
What e-drives are this? Yours? Bernd |
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Re: Duo 900 Italy
A true "sailmakers story"
Some years ago, in the high time of the SC 435.
A doctor was coming.
When I buy a kit from you, can I build the boat in a month?
The order was in. I made the kit.
The doctor picked the SC 435 kit up.?
When the doctor paid for the kit, I ordered the sails.
If I remember correctly, this gave the sailmaker 6 weeks to make them.
I know my sailmaker. A week before the delivery date. I phoned him
"Geen probleem, ik ben er so klaar me"
Two days before delivery. I phoned. " Waar zijn de zeilen?" Niets
The doctor had finished his boat. Where are my sails? Can my wife collect them tomorrow??
I "of course"?
In the end, he delivered the sails at five o'clock in the morning. The wife of the doctor picked the sails up at eight! |
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Re: Duo 900 Italy
Hi Rod
I keep my fingers for you crossed.? Ha, point with a boat is, it is like a house and never finished. Have fun anyway. Bernd |
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Re: Duo 900 Italy
Very sorry to hear your disappointment because of the sailmaker's mistake. I do hope he corrects his mistake so you can sail in September. My sailmaker told me to expect the sails for my ECO 6 to arrive today. I do hope I do not have that problem. The ECO 6 still has a few small things to complete before launch and so perhaps you and I will sail together in September, even though we will be an ocean apart!
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Re: Duo 900 Italy
Sorry to hear that.? Strange, I had also always problems with the sailmakers.?
Here in the South of France it is the same. Normally, till the end of October, it is okay to sail. I keep my fingers for you crossed that the sails will be quick delivered and will fit Ciao |
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Re: ECO 520 anyone building?
Some years ago, an SC 435 hull exploded in Rwanda. The hulls were in the sun.?
The Temperature on the hulls were over 150 degrees Fahrenheit (65.555555556 degree Celsius). If the Epoxy had been weakened enough, a say hull side panel connection, would be given away and the hull would not explode. I have never heard that an Epoxy connection in a boat in any climate had been going so weak that damage had occurred. That you use these time-consuming puzzle connection way, is okay but overdoing.? Just a bud strap way to connect the planking would be sufficient. Timewise would also be a factor from 1 : 10. But, have fun with it Bernd |
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Re: D.R. Voyager 122
Hi Patrick
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Please do that. First, it is always interesting to see how a design is emerging.?
As you know, I also use photos to make sort of articles in
Facebook's presentations like the Multihull appreciation group. It is my means to advertise.
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I also have to eat.
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Logically, it is quicker to finish the boat also on the inside where you are. But if you can have the boat in a port?
where you live, it will be nice to use the boat in the meantime.??
I know it is tempting never to finish the boat properly. The first two Seagulls were unfinished on the inside when they were put on the
water. Funny, from both, I was hearing from different places in the Pacific. They were still not finished.
Here is the danger.? Cheers Bernd |
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Re: Duo 900 Italy
Hi Domenico
This is terrible. I have no words about this sailmaker. I understand you very well. The sailmaker has to change this mistake pronto, now, yesterday!!! What now? Best of luck Bernd |
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Duo 900 Italy
Hello Bernd, unfortunately, I was reluctant to launch the boat this summer not because of me but because of the sailmaker who got the size of the sewing rope wrong. He sewed me the 10mm rope and not the 7mm rope, the nice thing I had sent the photo (in May) of the internal measurements of the 10.5mm duct and he was wrong .... :-))
I have an anger that you have no idea after so much work not being able to enjoy the boat.... |
Bernd Kohler
Nightline
cpcanoesailor
Rod McLaren
