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PostPosted: Fri Jun 10, 2011 1:28 am 
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Joined: Sun May 22, 2011 3:15 pm
Posts: 175
Location: Camas, WA
I'm planning to create a "Roll Bar" from 1-1/4" Schedule 40 Gray PVC Conduit (matches my Dune TI). Looks like it will fit nicely in the Rod Holder Wells. My goal is to elevate the mainsheet block a foot or so to eliminate/minimize the mainsheet whacking me in the head when I tack or jibe.

Halibu77 did this on his AI and it looks and seems to work great. Wondering if there is any risk of damaging the hull due the larger TI sail plan.

Matt, any thoughts?

Halibu77's YouTube channel is back up, here's a great one showing off all his tweaks:

http://www.youtube.com/user/HALIBU77#p/u/6/Dd0gUIPNDdw

I'll post some photos once it's done.

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iHop

Dune TI - 6/4/2011
Camas, WA


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PostPosted: Mon Jun 20, 2011 5:19 am 
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I just finished my Roll Bar. I will post some picks of it soon. :)

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"Only Possible in a Tandem Island BaBy"
http://www.adventureislanders.com
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PostPosted: Mon Jun 20, 2011 5:26 am 
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Location: Boynton Beach, FL
This enhancement is of great interest to us. Once you elevate the mainsheet, we can possiblly attach a bimini over the head of the backseat passenger.

I look forward to seeing your photos of your PVC solution.

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Marc K
2010 Hobie Tandem Island
Boynton Beach, FL


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PostPosted: Mon Jun 20, 2011 4:17 pm 
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I just built my Roll Bar for my HAI, to keep the sail line in check, and hold my rods higher up from the water line, and accommodated it to work with Scotty products for trolling rods. The Roll Bar holds 4 rods at this time, but I can make it hold up to 6 rods if I wanted to, but I just think thats way too many rods to bring out there, my max rods is 3 for now. I dont take all the credit for building the PVC Roll Bar Efren (Ivory Dagger) helped me out big time, I would have been lost if it was'nt for good o Ivory Dagger.

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"Only Possible in a Tandem Island BaBy"
http://www.adventureislanders.com
http://www.ACK.com


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PostPosted: Mon Jun 20, 2011 5:24 pm 
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Location: Canary Islands - Spain
It looks great! Well done. Really good job!

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PostPosted: Sun Sep 16, 2012 8:47 am 
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I know this is an old thread, but I'd like to revive/revisit it. The links and pictures from the original posts are gone.
I'd like to build a roll bar for my TI. It would serve two purposes: As a rod holder for when I gear up for fishing, and as a platform for a traveler for the main sheet to get it off my head and maybe boost performance.
I've seen a few pictures for the fishing rod applications and can figure that out, it also won't cause an undue amount of strain on the boat.
But the traveler aspect is another kettle of fish altogether. Rather than reinvent the wheel I'd like to see others' solutions. And I'd really like to hear about the various concerns both negative and positive about sail shape and handling and introduction of strains to the boat and possible resultant damage....
Jeff
Sparta and Sea Isle City, NJ


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PostPosted: Sun Sep 16, 2012 4:18 pm 
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Joined: Sun Apr 20, 2008 6:18 am
Posts: 1373
Location: Sarasota,Key West FL
skeenut:
I have a roll bar on my TI that I described how I built it in a couple threads "Motor sailing Tandem TI "
(viewtopic.php?f=71&t=44837)



Here is a pic of the roll bar, it has a traveler on top to guide the sail control line, and helps keep the sail lines off of the rear passengers head. Because it does bend the sail control line it affects the sail control slightly, but not too bad. My old mast was stiffened and the roll bar affected that sails performance much worse than my new mast (standard un-reenforced mast).

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I don't fish at all so I have no use for rod holders, however rod holders could be easily added to this design just by replacing the PVC elbows with PVC T's


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PostPosted: Sun Sep 16, 2012 5:10 pm 
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Joined: Thu Apr 08, 2010 9:59 am
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Location: Plant City, Fl.
Hi Guy's, Here is mine.

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PostPosted: Sun Sep 16, 2012 8:59 pm 
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Location: Forster, NSW, Australia
As fusioneng said, raising the line of the sheet does affect the sail shape slightly...

By raising the line, the tension on the leech (back edge) of the sail will be reduced compared to tightening of the foot of the sail.

I guess you have to juggle convenience against performance.

But if you are looking to actually enhance performance by using a traveller, rather than just increasing headroom, an alternative is to set up barber haulers from the padeyes at the rear of each ama, attached to the clew (rear corner) of the sail, so you can adjust the horizontal position of the clew. This is particularly useful for downwind sailing as you can then move the rear of the sail right out to the full beam of the Island. Of course the trade-off then is the complication of having a barber hauler on each side plus cleats (and possibly even tackle to increase purchase to 2 to 1)

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2012 Tandem Island "SIC EM"
www.scenefromabove.com.au


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PostPosted: Mon Sep 17, 2012 11:04 am 
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Location: Tampa Bay, FL
no problems here, no worries about sail lines or anything, works awesome! i am gonna re-do it and tweak it a little. I basically copied Livingwaters design i had seen either here or on texas kayak fisherman when i was trying to get ideas, and added some of my own tweaks.

scotty flush mounts, screw right into 1" PC threaded pipe btw.

I use a precisionpak cratepak maxbehind me and fits perfect in the well, the sail lines do hit it, but never hindered by it.

Image

might add 2 more scotty power locks to it.

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2011 Hobie Pro Angler - Papaya
2012 Hobie Tandem Island - Papaya


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PostPosted: Mon Sep 17, 2012 1:11 pm 
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Location: Sarasota,Key West FL
Thrashie's looks way nicer than mine.


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PostPosted: Sat Feb 02, 2013 12:38 pm 
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Joined: Wed Oct 10, 2012 11:20 pm
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Location: London UK
Thrashie wrote:
no problems here, no worries about sail lines or anything, works awesome! i am gonna re-do it and tweak it a little. I basically copied Livingwaters design i had seen either here or on texas kayak fisherman when i was trying to get ideas, and added some of my own tweaks.

scotty flush mounts, screw right into 1" PC threaded pipe btw.

I use a precisionpak cratepak maxbehind me and fits perfect in the well, the sail lines do hit it, but never hindered by it.

Image

might add 2 more scotty power locks to it.


i need to make one up after our first trip today. how did you bend the tube?

cheers
cc

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PostPosted: Sun Feb 03, 2013 4:56 am 
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Joined: Wed Oct 19, 2011 6:02 am
Posts: 325
Location: Cape Coral, FL
Chopcat wrote:
Thrashie wrote:
no problems here, no worries about sail lines or anything, works awesome! i am gonna re-do it and tweak it a little. I basically copied Livingwaters design i had seen either here or on texas kayak fisherman when i was trying to get ideas, and added some of my own tweaks.

scotty flush mounts, screw right into 1" PC threaded pipe btw.

I use a precisionpak cratepak maxbehind me and fits perfect in the well, the sail lines do hit it, but never hindered by it.

Image

might add 2 more scotty power locks to it.


i need to make one up after our first trip today. how did you bend the tube?

cheers
cc


The long bends are grey PVC for electrical conduit and the short bends are white PVC for pressure pipe, all painted black. Use 1 1/4" pipe

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2011 Golden Papaya TI with a 250 square foot spinnaker!
also a more manageable 100 square foot spinny...
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