how to make a marconi sail - SailNet Community
Reply
 
LinkBack Thread Tools
post #1 of 12 Old 05-03-2013 Thread Starter
Junior Member
 
Join Date: May 2013
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
how to make a marconi sail

Im new to sailing and have been experimenting with sailing my kayak, I guess i made a marconi sail, just a basic right triangle, out of poly tarp, its great down wind, but just about 45 degrees from running, after that i just get pushed sideways, I dont know if im doing something wrong (most likely).

When i go straight down wind i have the boom out at around 80 degrees, When i try to go 90 degrees from running i pull it in to 45 degrees, but that doesnt do the trick, Is that what I should be doing? Ive never sailed anything before, I have a rudder I built too.

I tried to tack but im sure you can guess how that went.

Basically im looking to know if marconi sails should have any special curves or what not, or just a flat cut.
Also looking for some tips to get me started, cant afford lessons either.

-matt
MattMcc804 is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 12 Old 05-03-2013
Just another Moderator
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 16,373
Thanks: 101
Thanked 304 Times in 294 Posts
Rep Power: 10
     
Re: how to make a marconi sail

Sails are definitely sewn with very specific "curves" and its a complex process. I suspect, though, that your bigger issue is lack of lateral resistance... i.e. you need some kind of keel/daggerboard to resist the extreme leeway you're experiencing.

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is offline  
Quote Quick Reply Share with Facebook
post #3 of 12 Old 05-04-2013 Thread Starter
Junior Member
 
Join Date: May 2013
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: how to make a marconi sail

That would make sense. Now ive seen sail kayaks with outriggers and they had daggerboards mounted on the outrigger beams, could i just mount it on the side of my kayak and how big should it be? should there be one on each side?
MattMcc804 is offline  
Quote Quick Reply Share with Facebook
post #4 of 12 Old 05-04-2013
Just another Moderator
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 16,373
Thanks: 101
Thanked 304 Times in 294 Posts
Rep Power: 10
     
Re: how to make a marconi sail

You could get away with one, I'd think... Something 12-15inches wide and 3ft deep would be a start.

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is offline  
Quote Quick Reply Share with Facebook
post #5 of 12 Old 05-04-2013
Senior Member
 
lajimo's Avatar
 
Join Date: Sep 2011
Posts: 187
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 4
 
how to make a marconi sail

Check out www.sailboatstogo.com for pics and kits sailing kayak rigs. They sell reasonably priced daggerboards and outriggers that clamp on to your boat. I have used their kit on my canoe and it works pretty well. Note that you will likely need to rig a rudder (oar trailed aft works) to really make tacking work for you.
lajimo is offline  
Quote Quick Reply Share with Facebook
post #6 of 12 Old 05-04-2013
Senior Member
 
Join Date: Jun 2012
Location: Chesapeake
Posts: 140
Thanks: 0
Thanked 4 Times in 4 Posts
Rep Power: 3
 
Re: how to make a marconi sail

THere are many ideas for sail shape and rigging options shown here.

Index of /tbradshaw/Sails and Plans

Also, you can use TYVEK material to make a sail with little or no skills.
Sea Dawg is offline  
Quote Quick Reply Share with Facebook
post #7 of 12 Old 05-04-2013 Thread Starter
Junior Member
 
Join Date: May 2013
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: how to make a marconi sail

I have a rudder, and for material a neighbor is giving me some old sails off his boat. Is a gaff rigged sail cut flat or does that too have special curves?
MattMcc804 is offline  
Quote Quick Reply Share with Facebook
post #8 of 12 Old 05-04-2013 Thread Starter
Junior Member
 
Join Date: May 2013
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: how to make a marconi sail

For how make shift and ugly the first sail was, I was suprised by how many other kayakers took interest. I kind of dont even want to try it today since there will be so many people on the water.
MattMcc804 is offline  
Quote Quick Reply Share with Facebook
post #9 of 12 Old 05-04-2013
Just another Moderator
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 16,373
Thanks: 101
Thanked 304 Times in 294 Posts
Rep Power: 10
     
Re: how to make a marconi sail

The material from an old sail off a larger boat will probably be kind of heavy for what you want to do. I think the tyvek idea has merit.. Someone's already gone to the effort of working it out, no need to reinvent the wheel. Add a daggerboard and you should be in business. Try to design the daggerboard mount to allow for some fore-and-aft adjustability so you can experiment with how well she'll steer.

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is offline  
Quote Quick Reply Share with Facebook
post #10 of 12 Old 05-04-2013
Member
 
Join Date: Oct 2007
Location: Louisville, KY
Posts: 87
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 8
 
Re: how to make a marconi sail

Check this out also... Cheap Pages/Sailing Canoes
garyguss is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
How to make my own sail? MattMcc804 Learning to Sail 9 05-06-2013 11:18 PM
What can I EASILY make out of an old sail vtsailguy Gear & Maintenance 26 02-19-2013 09:41 AM
make a gale sail SailingChance General Discussion (sailing related) 18 01-23-2013 02:54 PM
converting marconi to gaff rig BenMP Gear & Maintenance 12 11-29-2010 12:11 AM
gaff rigged? Full Battened Marconi? jbarros Boat Review and Purchase Forum 11 08-06-2003 11:03 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome