THE HAKA BENCH SEAT - AN ALTERNATIVE TO TRAMPS

They are beautiful !! Some of the nicest hakas I've seen. Good job.

Solid!

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The Wind Is Your Friend...

[quote="foreverglades"

For more pictures/info go here: http://richard.rathe.org/2019/sailing-kayak-hakas-camping

Excellent stuff Loved the dualityies

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Cheers

Jeff
AI (2016)

Hey Pete, the links to your photos seem to be broken, is there a chance you can restore them? I would be very happy to see this attachment method.

Thx, Bradley

I was all set to buy some spine boards off of amazon to use as Hakas. https://www.amazon.com/dp/B07N43PTN3/ref=twister_B07N413PC9?_encoding=UTF8&psc=1&tag=coa_us-20

But then someone on the FB group mentioned getting ones with grooves to add tubing reinforcements to keep them from bending and flexing under load.

That really stopped me in my tracks. Part of the appeal of the spine board was something that I didn't have to go crazy fabricating or modifying. Also, it doesn't appear that the ones I found on Amazon have grooves.

For those with spine board hakas, what's your experience? Can a 170 lb adult stand on one or is it going to flex too much?

Anyone reinforce theirs?

Thanks!

I hike out on my spine boards all the time (210lbs). No issues. I simply bungee them down.

I'm working on some Aluminum Hakas to cut at work. I've got a wooden set that the PO of my AI made, and they're... fine. A little shoddy construction. Looking for an improvement, and since we have a huge laser cutter and a warehouse full of marine-grade AL at work... here we go.


Thoughts from more experienced haka-ers before I cut the first prototype?

Is the 200 lbs weight limit for the trampoline or the aka arms? I’m wondering if an aka bench capable of holding more than 200 lbs. would damage the aka joint. I realize the stress would be very dynamic based on wave action and the ama buoyancy…

We just got our TI, hakas is one of the mods we are looking to pursue. I wonder if anyone has thought of using a 1x3X60" extruded aluminum bar with the built in channels. Cost would be low, weight low, unsure of the exact strength though. The end caps would need to be covered for safety but the channels would offer unlimited versatility for mounting. In the back corer a cushion seat extending a few inches further than the 3" width would offer nice perch for the bum.

I do see the advantages of something like loading ramps... more width for fishermen. But for us sailing camping folk, weight is a constraint.

Something else occurred to me when thinking of Hakas, Hobie 21 Wings... assuming one could pick up a used pair cheap enough and alter it to work in some way.

I don't have pictures, but we have used Inflatable SUP's and they worked great. 10'6 x 32 works great. Have you tried them?

New to here, and awaiting delivery of my TI in dune... definitely interested in building a couple of hakas, and am leaning towards aluminum.

Aluminum can add up in weight pretty quick; I think to build to a common pattern like some of the wood ones (3x 1x4" x 72"x0.125") would weigh more than 25lbs each.

@garyinwi made some interesting aluminum ones, but I don't see any details on the material and sizes used. I don't think I can PM, as I am too new here.
Gary - are you still checking in? If so, can you share more details?
Or perhaps others have seen more info on these? (sorry I have looked at other haka related threads but not found it yet)

I do have some ideas, but if Gary's turned out strong enough, they may work ideal.
Thanks in advance!

Brad

Not Gary, but I made aluminum ones (above) 0.090" thickness worked great with a welded stiffener, 125" didn't need the stiffener.

Thanks Tom,
I've followed your haka build on this thread and another that you started. They look really interesting and I think they may be one of the lightest options out there.
I was hoping to build some out of aluminum rectangular tubing and bolting things together, as I don't have any tools or aluminum welding skills.
At this point, I'm looking at perhaps making a narrower set out of 3x 1x2x0.125 tubing, bolting them together with some cross braces. I think a gab of 1.25 to 1.5" would work, making the total width about 8-9" and keeping the weight to about 16-17lbs.

Tom (and others), any thoughts on the above? Will I be disappointed in the reduced width? Will a 1.5" space be ok for sitting on? (I may add some seatek)

Thanks all for any feedback; this is a fantastic forum and a great thread!

Brad

If you're in my area (NC), I think I have a fab shop that can make them for you, probably cost $150 or so each for two.

I have the drawings somewhere too, so I can send them to you and pretty much any fab shop will be able to make them.

Don't quote me on the price of course, it's been a while since I've messed with that stuff.

Thanks Tom,
Yes, please do send the plans, I do have a shop locally that I think could tackle it. Much appreciated!

Brad