About trampolines

Mika Harju · Post by **Mika Harju** » Sat 03 Oct 09, 14:13

I need to replace my trampolines this winter. They are worn out and PVC border reinforcements and stitchings are damaged by UV.
I found these companies making new ones:
http://www.multihullnets.com/main.htm
http://multihullnets.nl/
http://www.yacht-netze.de/
Has anyone experiences of these companies or recommendation of another company?
Here is one company selling online all needed materials:
http://www.sailrite.com/Categories/Trampoline-Mesh_2

tpaliwoda · Post by **tpaliwoda** » Mon 05 Oct 09, 21:53

Mika,
Sunrise (multihullnets.com) rebuilt mine a few years ago. Very reasonable price too!
Quality of workmanship is excellent.
They sewn-on all new reinforcing on the ends, and patched a few holes also.
I want to say it was in the price range of $300.00! Far cheaper than buying new tramps.
Best thing I found to do with them, is over the winter when you are not using the boat, take them off and store out of the sunlight.
Ted

Mika Harju · Post by **Mika Harju** » Tue 06 Oct 09, 8:39

tpaliwoda wrote:Mika,
Sunrise (multihullnets.com) rebuilt mine a few years ago. Very reasonable price too!
Quality of workmanship is excellent.
They sewn-on all new reinforcing on the ends, and patched a few holes also.
I want to say it was in the price range of $300.00! Far cheaper than buying new tramps.
Best thing I found to do with them, is over the winter when you are not using the boat, take them off and store out of the sunlight.
Ted

I have tried to contact Sunrise with several emais, but all my emails are returned without connection. I am wondering is the company still running?
BTW we do not have problems with too much sun light here up in north (about 22E, 60N) during our loooooong winter. Daylight time is less than 6 hours in mid winter!

tpaliwoda · Post by **tpaliwoda** » Tue 06 Oct 09, 23:55

Just talked to a live person there. 1-727-526-9288, email is info@multihullnets.com.
Good point on the sun light!
We have some short days here in the North East also, not six hours.
If I see them at the Annapolis Boat show this weekend, I will tell them their email is kicking back.
Ted

Mika Harju · Post by **Mika Harju** » Mon 15 Mar 10, 19:20

Mika Harju wrote:I need to replace my trampolines this winter. They are worn out and PVC border reinforcements and stitchings are damaged by UV.
I found these companies making new ones:
http://www.multihullnets.com/main.htm
http://multihullnets.nl/
http://www.yacht-netze.de/
Has anyone experiences of these companies or recommendation of another company?
Here is one company selling online all needed materials:
http://www.sailrite.com/Categories/Trampoline-Mesh_2

I got the new set today. Quality looks good. They were made by a local company here in Finland:

http://www.mp-venekuomu.com/index.php?a ... 5f000e3e28

The price was 900 euros for the set of 4 trampolines. All material was manufactured by Ferrari and all seams were both welded and stitched.

Attached you'll find technical drawings (pdf format) with basic dimensions (please click on the link below).

Trampoline Assembly
Main Trampoline
Triangle Trampoline
Trampoline Material

parkhouse · Post by **parkhouse** » Tue 23 Mar 10, 20:35

Mika,
I see you have replaced the stainless steel rear support for the triangle trampolines with dyneema. How did you attach each end to the attachment points?
Mike Paterson
Df1000/34
Champus

Mika Harju · Post by **Mika Harju** » Tue 23 Mar 10, 20:44

parkhouse wrote:Mika,
I see you have replaced the stainless steel rear support for the triangle trampolines with dyneema. How did you attach each end to the attachment points?
Mike Paterson
Df1000/34
Champus

Just a knot of right style. Take a look at page 14.
http://www.seldenmast.com/_download.cfm ... -540-E.pdf
Dyneema has a really low friction factor so it is slippery and all knots are not good for it.

buckle.roger · Post by **buckle.roger** » Fri 16 Apr 10, 15:35

Your comment on Dyneema knots slipping is very true. both my bow sprit down haul and more importantly my outhaul for the trampolin both let go with good old bowlines, just slipped undone

Be aware!!!!

Baboonty · Post by **Baboonty** » Tue 27 Apr 10, 21:18

Hi Mika,

I'm a new DF 1000's owner and I expect to change the whole set of trampolines.
your local supplier seems to be very cheap, are you fully satisfied with your new set's quality and do you feel as confident with it compared to the original one?
Do you have any idea of the delay for making a new one?
olivier.

Mika Harju · Post by **Mika Harju** » Tue 27 Apr 10, 22:55

Baboonty wrote:Hi Mika,

I'm a new DF 1000's owner and I expect to change the whole set of trampolines.
your local supplier seems to be very cheap, are you fully satisfied with your new set's quality and do you feel as confident with it compared to the original one?
Do you have any idea of the delay for making a new one?
olivier.

They are better than original ones. All PVC border reinforcements are both welded and sewed. Ferrari material is slightly more slippery than the original one. Dyneema ropes are a good solution.

Mika Harju · Post by **Mika Harju** » Tue 27 Apr 10, 22:56

Baboonty wrote:Hi Mika,

I'm a new DF 1000's owner and I expect to change the whole set of trampolines.
your local supplier seems to be very cheap, are you fully satisfied with your new set's quality and do you feel as confident with it compared to the original one?
Do you have any idea of the delay for making a new one?
olivier.

If you want I could call them and ask a quote for you.

Baboonty · Post by **Baboonty** » Wed 28 Apr 10, 7:05

Mika ,

I would really be very grateful to you for contacting them for me.

regards

Olivier

Baboonty · Post by **Baboonty** » Wed 28 Apr 10, 7:07

do you have any picture of the dyneema knots ?

Mika Harju · Post by **Mika Harju** » Wed 28 Apr 10, 7:45

Baboonty wrote:Mika ,

I would really be very grateful to you for contacting them for me.

regards

Olivier

I could give my old trampolines once again for them as a template. They do already have all the technical drawings I have made before.
I could also go there and accept the delivery when it will be ready for shipment.

If the new set for some reason does not fit to your DF I do not want to take any response of it.

Give your email, and I´ll ask them to quote you.

Mika Harju · Post by **Mika Harju** » Wed 28 Apr 10, 7:46

Baboonty wrote:do you have any picture of the dyneema knots ?

Do you mean a photo or a drawing. A drawing is there in this topic already.

Baboonty · Post by **Baboonty** » Wed 28 Apr 10, 8:42

my email : olivier.valverde@free.fr

Thanks for your help.

I found the knot drawing in the Selden document.

Mika Harju · Post by **Mika Harju** » Sun 02 May 10, 15:19

parkhouse wrote:Mika,
I see you have replaced the stainless steel rear support for the triangle trampolines with dyneema. How did you attach each end to the attachment points?
Mike Paterson
Df1000/34
Champus

One note more about Dyneema ropes instead of steel wires: now the trampolines are much more easy to pack when folding the boat. Ropes are much more flexible.

Mika Harju · Post by **Mika Harju** » Wed 05 May 10, 7:45

Baboonty wrote:Hi Mika,

your local supplier seems to be very cheap, are you fully satisfied with your new set's quality and do you feel as confident with it compared to the original one?
olivier.

The price 900e did not include Dyneema ropes nor shackles needed. Total cost will be about 1000e.

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