Completed inflatable surfski

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kayakspearo
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Posts: 25
Joined: Wed May 17, 2017 6:17 am

Completed inflatable surfski

Post by kayakspearo »

P5230211 (225x300).jpg
P5230211 (225x300).jpg (107.16 KiB) Viewed 470 times
Hi all,
Just wanted to share the result of my winter building project.
First, the design. I own a Feathercraft Java and I love it. I use it mainly for spearfishing when I travel. Last year, I used it to hunt tunas in Panama. It worked, but It would definitely be beneficial if the kayak was faster for two reason : first, because I have to paddle very long distances, second because most of the time, I have to chase dolphins (because tunas travel with dolphins and dolphins are visible on the surface) and they are fast!!!
So I decided I needed a surfski for hunting tunas. Feathercraft made a surfski for a few years, but it was discountinued a long time ago. I looked hard for a while on the used market but to no avail.
I based the design on regular surfskis, leaning toward beginner/intermediate model as I wanted a kayak that was no too unstable. Final dimensions are 52 cm X 5,95 m (20,5'' X 19,5 ').
I have only tested it on a pond for now and the results were promising. More testing in the next few weeks.
Above and below are pictures of the final product with the Java for comparison. The rear deck is removable (for loading big tunas!!! :D ).
Attachments
P5230220 (300x225).jpg
P5230220 (300x225).jpg (99.72 KiB) Viewed 470 times
Feathercraft Java and K2
Homemade sectional hardshell
Homemade inflatable surfski
Rigid surfski (Epic V10sport)

kayakspearo
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Posts: 25
Joined: Wed May 17, 2017 6:17 am

Re: Completed inflatable surfski

Post by kayakspearo »

Feathercraft Java and K2
Homemade sectional hardshell
Homemade inflatable surfski
Rigid surfski (Epic V10sport)

Jeremiah
faltbootemeister
Posts: 157
Joined: Tue Feb 05, 2013 1:15 pm

Re: Completed inflatable surfski

Post by Jeremiah »

Wow! You did an amazing job. That's some winter project! Beautiful to look at, I hope it paddles the way you want it to.

It's hard to imagine going after tuna on such a long and narrow platform but you certainly know what you're doing.

It would be interesting to read a few more details on how it came all together. Again, great job!

kayakspearo
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Posts: 25
Joined: Wed May 17, 2017 6:17 am

Re: Completed inflatable surfski

Post by kayakspearo »

Thanks Jeremiah,
Here are a few pictures of the making of (more to come) :
Attachments
P1270144 (225x300).jpg
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P1240140 (300x225).jpg
P1240140 (300x225).jpg (74.61 KiB) Viewed 462 times
PC100521 (300x225).jpg
PC100521 (300x225).jpg (58.69 KiB) Viewed 462 times
Feathercraft Java and K2
Homemade sectional hardshell
Homemade inflatable surfski
Rigid surfski (Epic V10sport)

kayakspearo
forum fanatic
Posts: 25
Joined: Wed May 17, 2017 6:17 am

Re: Completed inflatable surfski

Post by kayakspearo »

More pictures, skinning. The hull is PVC, the deck is cordura 1000D.
Attachments
P1270150 (300x225).jpg
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P1290153 (300x225).jpg
P1290153 (300x225).jpg (73.14 KiB) Viewed 452 times
P3110167 (225x300).jpg
P3110167 (225x300).jpg (72.99 KiB) Viewed 452 times
Feathercraft Java and K2
Homemade sectional hardshell
Homemade inflatable surfski
Rigid surfski (Epic V10sport)

Jeremiah
faltbootemeister
Posts: 157
Joined: Tue Feb 05, 2013 1:15 pm

Re: Completed inflatable surfski

Post by Jeremiah »

That is such a unique design that I had to keep scrolling back and forth between all of your photos. You can see the Java influences but there is so much more going on. Solid ribs (lots of them) and no chine bars, I keep thinking it's a sit-in but it's a sit-on-top which leads to a whole bunch of "why" and "how" questions. But the reality is that I would not build something similar to it. I'm just admiring the hard work and ingenuity behind it the way I enjoyed seeing the work of Mr. Yost on this forum.

kayakspearo
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Posts: 25
Joined: Wed May 17, 2017 6:17 am

Re: Completed inflatable surfski

Post by kayakspearo »

Thanks again Jeremiah!
Actually, there is no crossribs. The ones you see in the pictures are made of corrugated plastic and are temporary. I used them to get the right shape for the hull.
The basics design (but not the shape) is really the same as the Java. Inside four chambers are inflated sponsons and yes, it is a sit-on-top. There is also 3 aluminum tubes for longitudinal stiffness.
Here is a couple picture of one of the sponsons:
Attachments
P2240165 (225x300).jpg
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P3180181 (225x300).jpg
P3180181 (225x300).jpg (72.2 KiB) Viewed 443 times
Feathercraft Java and K2
Homemade sectional hardshell
Homemade inflatable surfski
Rigid surfski (Epic V10sport)

kayakspearo
forum fanatic
Posts: 25
Joined: Wed May 17, 2017 6:17 am

Re: Completed inflatable surfski

Post by kayakspearo »

Here are two more pictures. At the bottom is the Epic V8Pro, on wich I based the shape and dimensions.
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P5250221 (500x251) (400x201).jpg
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V8-Pro-Right-Side avec fond (3000x420) (2000x280) (640x90).jpg
V8-Pro-Right-Side avec fond (3000x420) (2000x280) (640x90).jpg (41.32 KiB) Viewed 442 times
Feathercraft Java and K2
Homemade sectional hardshell
Homemade inflatable surfski
Rigid surfski (Epic V10sport)

Jeremiah
faltbootemeister
Posts: 157
Joined: Tue Feb 05, 2013 1:15 pm

Re: Completed inflatable surfski

Post by Jeremiah »

Some things are familiar and some things are very unique. Very cool!

I was lucky to be able to paddle an Epic Pro. A rep from the company will sometimes paddle one where I often kayak. He said give it a try. It was a lot of fun!

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