Re: David's Cataproa
Hello David Nice to have you on board. Just checked your blog. The Cataproa has a lot of potentials. Good that you are a professional. A small increase in size makes a big difference. My goal with the
By
Bernd Kohler
·
#8905
·
|
David's Cataproa
I am just starting a Cataproa. I had to make some changes to fit my needs. You can see them here on my blog: http://gator2002.temp.domains/~mancegns/2021/09/08/davids-cataproa/ I am collecting
By
David Mancebo
·
#8904
·
|
Re: Updated album CATAPROA, Harald, Germany #photo-notice/sail area
Hi Philip, thank you for the nice article. I'm thinking about a new bigger sail with wide seam for the next ?season. Sorry about your mast, I build my mast from an older wave surfing mast and two
By
Harald Niespor
·
#8903
·
|
Re: Updated album CATAPROA, Harald, Germany #photo-notice/sail area
Hi Philip No, make him 60mm Cheers Bernd Any thoughts about my questions?
By
Bernd Kohler
·
#8902
·
|
Re: Updated album CATAPROA, Harald, Germany #photo-notice/sail area
Hi, I do not know the material you mention. Normally they are made from 120 gr/2 dacron sail loth. But in some countries, big lateen sails are made of poly tarpaulin material. Bernd
By
Bernd Kohler
·
#8901
·
|
Re: Updated album CATAPROA, Harald, Germany #photo-notice/sail area
Berndt, will the 50 mm mast be strong enough if made with solid meranti? I plan to glue 4 quarters together.? I will send the article.CheersPhilip Malan
By
Philip Malan
·
#8900
·
|
Re: Updated album CATAPROA, Harald, Germany #photo-notice/sail area
I'm interested in Latin sails - are they sewn from repurposed togas? ;-)
By
rattus32
·
#8899
·
|
Re: Updated album CATAPROA, Harald, Germany #photo-notice/sail area
Hi Philip Sorry to hear that you broke your mast. Hold the mast as short as possible. Good thing is, that Latin sails do not need a long mast. I like your sail. I was thinking in the same direction.
By
Bernd Kohler
·
#8898
·
|
Re: Updated album CATAPROA, Harald, Germany #photo-notice/sail area
Harold, yes I kept the sail angles the same and basically added to the back so the boom and yard became longer as well as the mast. My mast broke Wednesday so I am going to make a solid round wood
By
Philip Malan
·
#8897
·
|
Re: Updated album CATAPROA, Harald, Germany #photo-notice/sail area
Hi Philip, did you design and build the 12 sqm sail by yourself? It will be nice, to get some advice from you:) The boom and the spar are now longer to get more sail area? Thank you from Germany,
By
Harald Niespor
·
#8896
·
|
good article about aft masted catamarans such as the 520
Here is the link. http://runningtideyachts.com/sail/
By
Michael Mitchell <mitchellwm4mm@...>
·
#8895
·
|
Re: Seattle Eco 55 power cat build
Hi Bernd, the link you provided is to my latest video (Phil) not Rick. Unless you meant me. I will be posting another shortly with the modifications to improve performance. I will also be asking you
By
Phil Boyer
·
#8894
·
|
Re: Seattle Eco 55 power cat build
Regarding the lithium-ion batteries above... As often happens in such matters, I read about the environmental impact of lithium mining *after* buying a couple big lithium batteries. I can't say for
By
James Jones
·
#8893
·
|
Re: Seattle Eco 55 power cat build
For all the electric powered boat enthusiasts Here is a link to Rick's? wiring on his ECO https://www.youtube.com/watch?v=bwC6UaQbgB8&t=83s
By
Bernd Kohler
·
#8892
·
|
Re: Seattle Eco 55 power cat build
Hi Jim Looks interesting. Everybody has his own speed. I have very good experience with Rutland wind generators. Very good output. Never a problem. Worked well also in low wind speeds. Got noisier
By
Bernd Kohler
·
#8891
·
|
Re: Seattle Eco 55 power cat build
Hi all again, and thanks for the comments! Here are a few more progress photos, and yes, I'm working rather slowly. :)? I've changed course a bit and wound up with a Karvin (Czech Republic) 6800
By
James Jones
·
#8890
·
|
Re: Duo 1000 update
Hi Greg General, on the bow's underwater parts, has nothing changed. Fewer parts necessary. It is a complete overhaul of the boat. For instance, the main beam is changed too. Again, shorter building
By
Bernd Kohler
·
#8889
·
|
Duo 1000 update
Hi Bernd, The updated Duo 1000 really looks good - particularly like the new bow. I assume the study prints have been updated to include the changes? What length of mast and section size would be
By
Greg Walter
·
#8888
·
|
Re: Another 520 question
Hi Mitch Designing a boat is a complex affair. You have to think abut many things, make a lot of calculations, plus the experience as a designer, and a practicing sailor (since 69 years!) and boat
By
Bernd Kohler
·
#8887
·
|
Re: Another 520 question
As far as roller furling sails go, I remember Bernd saying that it is possible to partially furl a head sail with a wire luff (not a stiff extrusion) if the sail is cut flat enough. My understanding
By
voya12m
·
#8886
·
|