Return to Hobie.com
Hobie Forums
It is currently Mon Mar 18, 2024 9:51 pm

All times are UTC - 8 hours [ DST ]




Post new topic Reply to topic  [ 10 posts ] 
Author Message
PostPosted: Mon Jun 18, 2018 6:43 pm 
Offline
Site Rank - Old Salt

Joined: Thu Aug 16, 2007 2:25 pm
Posts: 2863
Location: Central Coast NSW Australia
In the interest of a faster set up time I got a sailmaker to add zips to my tramps.
It now takes 15 seconds a side to fit the tramps, which is a lot quicker and less fiddly than-
-unclipping the bungee retainers
-unrolling the tramp
-doing up the 5 QR clips
-tensioning
-clipping the two bungee retainers back together.
Packing up is also simpler- just undo the zip!

To make the zipper easier to get started and to take pressure off the slider and stopper my sailmaker made it longer than the tramp.
Image

Image

Image


Image

I use haka so the tramps will only be holding gear but the zipper handles standing, kneeling and sitting on the tramp OK. I weigh 80kgs.

Image

Image

Image

They fold up easily for storage
Image

Time will tell how well they last but so far I’m loving the convenience.


Last edited by stringy on Sun Jun 24, 2018 12:52 am, edited 1 time in total.

Top
 Profile  
 
PostPosted: Tue Jun 19, 2018 4:32 am 
Offline
Site Rank - Old Salt

Joined: Sun Apr 26, 2015 3:13 pm
Posts: 655
Wow, very cool!

Was it expensive to install the zippers?


Top
 Profile  
 
PostPosted: Tue Jun 19, 2018 6:41 am 
Offline
Site Rank - Old Salt

Joined: Tue Jun 19, 2007 6:14 pm
Posts: 3323
Location: South Florida
I don't have tramps, Stringy, but that is very impressive!

Keith

_________________
2015 AI 2, 2014 Tandem

"Any intelligent fool can make things bigger and more complex ... It takes a touch of genius and a lot of courage to move in the opposite direction." A. Einstein

"Less is more" Anon


Top
 Profile  
 
PostPosted: Tue Jun 19, 2018 3:54 pm 
Offline
Site Rank - Old Salt

Joined: Thu Jul 24, 2014 1:30 pm
Posts: 380
Let us know how they fair. My kids PFD has a zipper and it’s a pain when sand gets in it.


Sent from my iPhone using Tapatalk


Top
 Profile  
 
PostPosted: Wed Jun 20, 2018 4:34 pm 
Offline
Site Rank - Old Salt

Joined: Sun Apr 20, 2008 6:18 am
Posts: 3057
Location: Sarasota,Key West FL
Cool idea


Top
 Profile  
 
PostPosted: Fri Jun 22, 2018 3:29 pm 
Offline
Site Rank - Old Salt

Joined: Mon Aug 04, 2014 8:17 pm
Posts: 426
Location: Austin Texas
Cool idea, hope you keep us posted on how they work out.

Chris


Top
 Profile  
 
PostPosted: Sun Jun 24, 2018 12:34 am 
Offline
Site Rank - Old Salt

Joined: Thu Aug 16, 2007 2:25 pm
Posts: 2863
Location: Central Coast NSW Australia
Thanks all for the comments.

Pro10is -it cost $75AUD/side to fit using YKK Vislon #8 zips. I was happy to pay that for the convenience. The older I get the more I find fitting the tramps to be a real chore, especially as I’m getting a bit of arthritis in my fingers. I left the zip choice up to my sailmaker. He had to add some vinyl so the zip could be sewn to the tramp. He overlapped the vinyl so it covers the zip when closed, giving a bit of UV protection.


I learnt a lot about zips when I was researching this. I wasn’t sure if a zip would be strong enough. Turns out they are quite strong when closed. The crosswise strength of the chain is over 100lbs/1” on a #8 zip. On a #15 zip its as much as 327lbs/inch. If I wasn’t using haka I would have chosen a larger zip.
I’d like to know more about the forces that a trampoline gets subject to. I know in cordage that the forces on anchors in a span line at 120 degrees are the same as the weight of the object on the span. At 150 degrees though, the force is doubled at the anchors, so the tighter the line the greater the force at the anchors. A really tight line at around 170 degrees could subject each anchor to 6X the load!
If you look closely at the loaded tramp pics above, the vinyl covering has opened up fairly evenly all the way along. I guess a trampoline spreads out the force along the aka bars/buckles or zip in this case.
It must do as I had no problems with the zip when standing on the tramp!


Top
 Profile  
 
PostPosted: Thu Jul 05, 2018 1:11 am 
Offline
Site Rank - Captain

Joined: Tue Jun 12, 2018 2:00 am
Posts: 25
Nice idea (I guess you still need to unroll them on both sides now?)

What I do:
- Before moving the aka out I remove the bungies and unroll the tramps (much easier with aka still in)
- Hold the clip in the middle, move aka out and clip the middle one first, then the first 2, rest is easy
- When finished sailing: unclip all, move aka in and roll up and bungie


Top
 Profile  
 
PostPosted: Thu Jul 05, 2018 6:50 am 
Offline
Site Rank - Old Salt

Joined: Sat Nov 05, 2011 1:58 am
Posts: 2893
Location: Forster, NSW, Australia
Up there for thinking, Stringy! I love the idea

_________________
Tony Stott
2012 Tandem Island "SIC EM" with Hobie spinnaker


Top
 Profile  
 
PostPosted: Sat Jul 14, 2018 8:51 pm 
Offline
Site Rank - Old Salt

Joined: Thu Aug 16, 2007 2:25 pm
Posts: 2863
Location: Central Coast NSW Australia
Thanks Prettig and Tony.

prettig wrote:
Nice idea (I guess you still need to unroll them on both sides now?)

I don’t roll up the tramps at all. When packed up they just sit in the hull as seen in the last pic above.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC - 8 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Jump to:  
© Hobie Cat Company. All rights reserved.
Powered by phpBB® Forum Software © phpBB Group