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4-way jib question #9648
08/18/02 06:57 PM
08/18/02 06:57 PM
Joined: Jun 2001
Posts: 62
Flagstaff, Arizona
Dennis Offline OP
journeyman
Dennis  Offline OP
journeyman

Joined: Jun 2001
Posts: 62
Flagstaff, Arizona
I am rebuilding the original 4-way jib system on my P19. After looking at the bungee and line setup, I thought about the possibility of reversing the controls. Originally, it seems the line leading to the block pulls the block out to the side of the boat; opening the slot between jib and main, in effect easing this "jib traveler." To me, it seems more intuitive to center the "traveler" and close the slot when you pull the line. Why not set it up so when you pull the line it closes the slot instead? Has anyone else tried this?

-- Have You Seen This? --
Re: 4-way jib question [Re: Dennis] #9649
08/18/02 07:03 PM
08/18/02 07:03 PM
Joined: Jun 2001
Posts: 138
California
Sailing Pro Shop Offline
member
Sailing Pro Shop  Offline
member

Joined: Jun 2001
Posts: 138
California
The jib sheet blocks are naturally pulled inboard by the tension. The bungee simply serves to pull the leads inboard further in lighter air when the lead adjuster is eased.





Mark Michaelsen http://www.sailingproshop.com (800) 354-7245
Re: 4-way jib question [Re: Sailing Pro Shop] #9650
08/18/02 09:29 PM
08/18/02 09:29 PM
Joined: Apr 2002
Posts: 96
Racine, Wisconsin
Leo Offline
journeyman
Leo  Offline
journeyman

Joined: Apr 2002
Posts: 96
Racine, Wisconsin
Anybody ever remove that damn cable and replace it wih a few winds of Spectra? I have heard of doing this, but still wonder just how well it really works. It sounds a whole lot more confortable for the crew. Comments appreciated.


Paul Scott Bartelt 2001 NACRA 6.0 NA #546
Re: 4-way jib question [Re: Leo] #9651
08/18/02 10:12 PM
08/18/02 10:12 PM
Joined: Jul 2001
Posts: 364
Andrew Offline
enthusiast
Andrew  Offline
enthusiast

Joined: Jul 2001
Posts: 364
I did. It works great, and yeah, it sure is easier on the crew. I know of at least one other person that has done it too. I think it's 1/8", doubled. I centered it on one of the shackles and used a fid to lead it back and forth thru itself at roughly 8" intervals, then brummel-spliced loops in both bitter ends and attached to the other shackle. It's worked out great so far.



sail fast


Andrew Tatton Nacra 20 "Wiggle Stick" #266 Nacra 18 Square #12
Re: 4-way jib question [Re: Leo] #9652
08/19/02 01:29 AM
08/19/02 01:29 AM
Joined: Jun 2001
Posts: 1,449
P
phill Offline
veteran
phill  Offline
veteran
P

Joined: Jun 2001
Posts: 1,449
We used to have this sytem on Taipan 4.9s.

We found the jib didn't need much adjusting if any. Only when you change mast rake.

So chucked the whole lot away and put a couple of eyelets in the tramp for adjustment.

Much better setup.


I know that the voices in my head aint real,
but they have some pretty good ideas.
There is no such thing as a quick fix and I've never had free lunch!

Re: 4-way jib question [Re: phill] #9653
08/19/02 11:15 AM
08/19/02 11:15 AM
Joined: Jun 2001
Posts: 833
St. Louis, MO,
Mike Hill Offline
old hand
Mike Hill  Offline
old hand

Joined: Jun 2001
Posts: 833
St. Louis, MO,
Dennis,



I'm not sure the other poster's were completely clear. The way you want to do the jib will not work. You must run the line out to the edge and put the bungee in the middle in order for the system to work.



There are many other systems out there. I've seen people replace the wire with spectra but it does stretch and has to be retightened once in a while. Spectra also will wear through where it is tied but you can see it wearing and replace accordingly.



Keep One Hull Flying,

Mike Hill

H20 #791



Mike Hill
N20 #1005
Re: 4-way jib question [Re: Mike Hill] #9654
08/19/02 12:14 PM
08/19/02 12:14 PM
Joined: Jun 2001
Posts: 3,116
Annapolis, MD
Mark Schneider Offline
Carpal Tunnel
Mark Schneider  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 3,116
Annapolis, MD
Randy Smyth has a tramp design for use on his MX rig. They use the tornado style loops in the tramp with a snap shackle for adjusting the jib lead positions. I raced on Harry Murphy's MX and the boat is actually user friendly without the cheese cutter.



If you need a new tramp... I would certainly go for it.


crac.sailregattas.com
Re: 4-way jib question [Re: Leo] #9655
08/19/02 12:26 PM
08/19/02 12:26 PM
Joined: Jun 2001
Posts: 160
Connecticut
Eric Anderson Offline
member
Eric Anderson  Offline
member

Joined: Jun 2001
Posts: 160
Connecticut
Paul,

About a year ago I converted my Nacra 6.0 na over to a trampoline sheeting system. I reinfourced the trampoline and put in a series of grommets in the tramp. I run spectra core loops of 3/16 line through the grommets and use a wichard lifeline shackle (the smallest one they make) to attatch the blocks. The system works great and makes the boat much more user(crew) friendly. so far the tramp has handled the load without a problem.



The only downside is that you can't adjust the burdened side under load.



Before you put in the grommets, check your jibs carefully. elliot P sail quality sucks. I have 3 jibs that vary by as much as 1 1/2 inches of length on the foot. This changes the jib lead position.



Eric Anderson


Re: 4-way jib question [Re: Eric Anderson] #9656
08/19/02 01:35 PM
08/19/02 01:35 PM
Joined: Jun 2001
Posts: 62
Flagstaff, Arizona
Dennis Offline OP
journeyman
Dennis  Offline OP
journeyman

Joined: Jun 2001
Posts: 62
Flagstaff, Arizona
Thanks, all.

I currently have the tramp jib block attachments. It works well, and I don't really like the 4-way. However, I also like to be able to use everything the boat came with. The jib blocks are now set up with Wichard spring hooks to attach either to the spectra loops on the tramp, or to the blocks on the 4-way. The entire 4-way; cable, lines, blocks, cleats, snorkle, and travelers, all slide out of the track and can be set aside. The 4-way is now laced as original except that the v-cleats were replaced with cam cleats that sit on the same plate as everything else. With the 4-way removed, there is very little to hurt yourself on. It's nice to have all the options open. I'll post a picture when the tramp is back on.

Re: 4-way jib question [Re: Dennis] #9657
08/19/02 02:43 PM
08/19/02 02:43 PM
Joined: Jun 2001
Posts: 40
Mesa, AZ
basketcase Offline
newbie
basketcase  Offline
newbie

Joined: Jun 2001
Posts: 40
Mesa, AZ
Hey Dennis, Check your email. I don't have your home address to ship you back your tramp.

Jonathan Grant

Mesa, AZ

P19 (292)

Re: 4-way jib question - Tramp Modifications? [Re: Dennis] #9658
08/19/02 03:55 PM
08/19/02 03:55 PM
Joined: Jun 2001
Posts: 74
Maryland, USA
PRagen Offline
journeyman
PRagen  Offline
journeyman

Joined: Jun 2001
Posts: 74
Maryland, USA
Can anyone recommend someone to update my tramp for the ability to attach the jib blocks directly? Including having some knowledge of where to put the attachments? I also want to get the threads re-sewn. They are starting to deteriorate. (10 years old - mostly under a cover)



I like Dennis's option to be able to use the 4 way for more serious racing if you need it, or to remove for more casual sailing. My casual sailing crew (wife) would really appreciate it.



Patrick Ragen
Taipan 4.9 USA 274
Re: 4-way jib question - Tramp Modifications? [Re: PRagen] #9659
08/19/02 11:51 PM
08/19/02 11:51 PM
Joined: Jun 2001
Posts: 62
Flagstaff, Arizona
Dennis Offline OP
journeyman
Dennis  Offline OP
journeyman

Joined: Jun 2001
Posts: 62
Flagstaff, Arizona
I don't know where you are or whether your tramp is easily re-sewn or adaptable to the jib attachments. I can say that the poster above, Jonathon Grant, does really great work on new tramps. I designed mine for the jib attachments using grommets to run spectra in tight loops across the places the 4-way had the best luff. You're right that there's a big variation in jibs. I have two, and one is just too short to work well on the boundaries of the attachments, while the other is perfect. Jonathon sewed in reinforcing material and then punched in the grommets. I know he worked hard on it, and it's holding up well. He has it now because the fireworks on the beach in Mexico ate holes in it. He usually just builds new tramps...

Re: 4-way jib question [Re: Leo] #9660
08/27/02 08:02 PM
08/27/02 08:02 PM
Joined: Jun 2002
Posts: 1,658
Florida Suncoast, Dunedin Caus...
catman Offline
Pooh-Bah
catman  Offline
Pooh-Bah

Joined: Jun 2002
Posts: 1,658
Florida Suncoast, Dunedin Caus...
I'm using 3/16 vectran on my mystere 6.0 in place of the wire. I've had it on there for a year and the boat is sailed almost every weekend with no problems.


Have Fun

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