Tramp Styles and Suppliers

[SV Bacchus]

You guys gotta quit wearing your heels when walking on the tramp! Ha! Just Kidding!

Lots of good info here and I'll hang onto it as I'll be doing this in a year or two..

[Kiwi Dave]

As requested

Dyneema braided netting, folded over & free edge laced on to main netting with net twine (caries no load). Dynema 8mm rope threaded inside the folded edge. Laced onto hull rail with 8mm dynema which passes through the netting holes and around the 8mm dyneema edge rope. Thus to come adrift the 8mm dynema will need to break or be cut (neither is likely)

[multi-hulls]

Originally Posted by travellerw

Hhmm, I had the opposite experience with Multihullnets. Their price was 3x the price of a sail loft in South Africa (even after shipping).

I ended up having Tony from Ullman Sails make ours out of Supertramp material. That was 3 years ago and they still look like brand new. We have since have multiple buddy boats get tramps made by him with the same good results and price.

Well, I never said they were cheap

What is "supertramp"...source???

Cheers

[multi-hulls]

Originally Posted by CGirvan

Thanks for the info Multi-hulls.


Another question I have about these tramps.


I've heard people mention treating their tramps with some sort of protectorant. Do any of you do this and what product are you using?

I would say only for a fabric like...

https://www.sailrite.com/Trampoline-Mesh-Soft-White-63

Multihullnets/sunrise sells a coating specifically for it...

[Rapanui]

Just replaced our Athena net with 13x13mm polyester woven net from Francetrampoline. Really comfortable to walk on, very reasonable price, the best tramp we have had in 5 cats and 1 tri.
The company are typically French idiosyncratic to deal with, but make a good product and reasonable shipping charges.

[travellerw]

Originally Posted by multi-hulls

Well, I never said they were cheap

What is "supertramp"...source???

Cheers

Cheap they are not. Not sure how they justify thier prices. Oh well..

Here is a picture of Supertramp from ATN's website.


We have seen posts that its not good for offshore, but we know more than a couple of boats that circumnavigated with it. Like I said, we did the thorny path with it and it still looks like new 3 years later.

[fxykty]

Originally Posted by travellerw

Cheap they are not. Not sure how they justify thier prices. Oh well..



Here is a picture of Supertramp from ATN's website.





We have seen posts that its not good for offshore, but we know more than a couple of boats that circumnavigated with it. Like I said, we did the thorny path with it and it still looks like new 3 years later.

It’s not the mesh style or material that matters for offshore use, but the ‘openness’ of the net. It’s about how much of a barrier your net is for water from above and air from below. For coastal use or relatively small tramps you can use a tighter weave or mesh, which is generally more comfortable.

We have large front tramps and for the Category A rating Outremer said minimum 86% openness - pretty much only braided mesh is that open.

We recently re-netted with 22mm braided polyester netting in black that we ordered from a fishing supply company in Australia. We edged it with 8mm polyester double braid (threaded it through the mesh about three squares in from the edge, then rolled the extra up and lashed it with 1.5mm polyester line around the mesh roll and the line) and then put in 1.5mm polyester lashings every 10cm. Pre-stretching the tramps was the biggest PITA, followed closely by the 220 or so lashings I had to attach, tension, re-tension, and tie off.

When we have to do it again in 10 years hopefully we’ll have the money to order complete nets from multihullnets.com, but if I don’t count my labour DIY was about 1/3 the cost.

[multi-hulls]

Originally Posted by travellerw

Cheap they are not. Not sure how they justify thier prices. Oh well..

Here is a picture of Supertramp from ATN's website.


We have seen posts that its not good for offshore, but we know more than a couple of boats that circumnavigated with it. Like I said, we did the thorny path with it and it still looks like new 3 years later.

Well, that looks exactly like the mesh I just purchased from Sailrite.

I calculated ATN price based on the dimension of my F9ax wingnet and unless I am doing something wrong, came up with a price of about $1300 per wing net! OUCH, that is almost twice the cost of the same net from Sunrise ($1600 set of 2).

I need to decide on my boltrope construction...then off to the sweatshop...

Cheers

[Morph]

I had to replace my old webbing tramps after 10 years--they were excellent and were glued and sewn at each join. I made the mistake of replacing with Ferrari cloth which on our first outing ripped off after going hard on the wind in 40 knots. Then on the trip back, they buried the bows and we broached offshore... after getting back home, they were replaced with netting that was great--if I was doing it again I'd go for the dyneema--it's magic stuff. The polyester I got was just a bit too stretchy..

[travellerw]

Originally Posted by multi-hulls

Well, that looks exactly like the mesh I just purchased from Sailrite.

I calculated ATN price based on the dimension of my F9ax wingnet and unless I am doing something wrong, came up with a price of about $1300 per wing net! OUCH, that is almost twice the cost of the same net from Sunrise ($1600 set of 2).

I need to decide on my boltrope construction...then off to the sweatshop...

Cheers

My completed nets (with borders, ropes, everything) were actually cheaper than $1600 including shipping to the USA. From the loft I posted above.

However, who knows maybe my nets are much smaller than yours.

[CGirvan]

Originally Posted by Morph

The polyester I got was just a bit too stretchy..

I've often wondered about whether stretch is a useful characteristic or not. Surely the less stretch the higher the loading on the attachment points.

[fxykty]

Originally Posted by CGirvan

I've often wondered about whether stretch is a useful characteristic or not. Surely the less stretch the higher the loading on the attachment points.

More tension in the net surface and less give, whether through stretch of the net material or due to low tension, is less comfortable to walk on. Given the amount of tension in a well strung net I don’t think there’s proportionately much added load due to less stretchy net material.

We pre-stretched our polyester braided nets - staked them out in a large garage for 2 months, using come alongs to keep the tension up. On the longest measurement (4.2m) they stretched less than 1 cm. They’ll surely stretch some more over time but not so much as to matter I think - can always retighten the lashings.

[Dsanduril]

For the other side of the world, Gordon at Multihull Tramps in Bundaberg works in several different materials and did a really nice job for us in knotless UHMWPE.

[Millerslocal]

We just had new nets made for our Lagoon 450 by Ullman Sails in Cape Town. Supertramp material. Incredibly comfy compared to our original nets.

Hopefully they deal with poor weather conditions OK - all the Robinson & Cain boats going into the Mooring/Sunsail charter fleet have the same material and many are delivered from Cape Town to Caribbean/Asia - so must be safe enough!

Total cost ex-shipping was $680.

[smj]

Originally Posted by Millerslocal

We just had new nets made for our Lagoon 450 by Ullman Sails in Cape Town. Supertramp material. Incredibly comfy compared to our original nets.



Hopefully they deal with poor weather conditions OK - all the Robinson & Cain boats going into the Mooring/Sunsail charter fleet have the same material and many are delivered from Cape Town to Caribbean/Asia - so must be safe enough!



Total cost ex-shipping was $680.

Nice looking tramps and a great price!