Coil carbon/spectra ''concept'' board

General Discussion
1

As mentioned a couple of times today on other threads, Eric and Kirk Brasington of Coil did a ‘‘concept’’ board

that we decided to take to the trade show this past weekend. Much as automobile companies do ‘‘concept cars’’

for their shows, Coil wanted this one to be unique and feature design and construction elements that could find

their way into production.

This board started with a handshaped EPS blank (shaped last Monday by yours truly), using a staged foil to induce flex

and provide volume in the center. It’s a 6’0’’ x 18 3/8’’ x 2 1/8’', similar to what several of my team guys ride.

Eric had come up with this carbon/spectra hybrid knitted fabric, so along with some E-glass and a little Resin Research

epoxy, it all went into the bag. We had a target finished weight in the high 3’s, but it ended up coming out at 4 lbs. dead.

One of the nice people I’ve met on sways will post some crappy pictures I took of ""the sock’', pro pics might be coming

tomorrow if anyone’s still interested. You’ll see why everyone called it ‘‘the sock’’ when you see the pics.

There’s lots of ways to build a surfboard, they’re all fun…

Mike

2

I’m tripping on the foil. Rocker profile shot?

By the way,

NICE job! You, my friend, are a rocket scientist.

3

Hi Mike - VERY slick!

4

Looks good ! would like to see it in my hands(foil)

5

I’ll try to get a profile shot up later, this one has the most pronounced foil of this type that I’ve done,

so it should show well in pics. Almost all the Coils Kirk and I shape have a touch of it, but it’s usually subtle enough

that it slips by most people. This one you can’t miss.

I forgot to include the volume measurement in the dims posted previously, this one is .68 cubic feet.

Mike

6

Very cool Mike!

If I may ask, what are your durability expectations?

7
Quote:

Very cool Mike!

If I may ask, what are your durability expectations?

At this weight, we know we’re pushing the viability of the structure. Our ‘‘normal’’ board this size would weigh 4 3/4-5 lbs

and they have a proven record of holding up. This board is by design a test of how far we can go, and we’re going to give it to one

of our favorite test pilots, Justin Jones, for a real-world thrashing. I’ll report back.

The light lam schedule, staged foil, and Spectra fiber were also intended to induce flex, and those who handled the board all noticed

the dif. We’ll see what effect that has on the ride also.

Mike

8

Sweet board Mike !

9

Looks brilliant, very keen to hear how it went/goes.

Thanks for sharing !

10

Thanks for the compliments, guys. This board was/is fun to be a part of.

A couple more interesting things about her:

We measured the flex and it came in right on our target, amazingly enough. More flex than the ‘‘normal’’ Coil,

but still nice and tight and twangy.

There is no visible seam anywhere on the board, the cloth appears continuous. It looks like the fabric was made

woven right around the structure. Only Eric and Kirk know how they did this, and they’re not telling.

Oh yeah, thanks to the Future people for loaning us the set of intricately foiled, brand-spankin’-new fins.

Mike

11

Does it have anything to do with its nickname?

Hey, you’re kinda close to Cape Canaveral, aren’t ya.

12

That board looks amazing.How is the durabilty compared to a compsand and what has been your feedback on flex.I have a firewire and sometimes on bigger waves it would overflex and I would lose drive.I read about this tech in ESM a few months ago and it is great that you post on this site.I would be interested in getting a board from you.

13

very very nice. Tell us about the spectra cloth. Strongest material per pound? how does it work with carbon? Why combine the two? thx

14
Quote:

Does it have anything to do with its nickname?

Hey, you’re kinda close to Cape Canaveral, aren’t ya.

maybe and yes

15

Performance is the primary engineering criteria for us, the durability is more of a byproduct of getting the flex and the ‘‘feel’’

right than a stated goal. Kirk and Eric were quoted in the ESM article, ‘‘We’re not trying to build the indestructible surfboard.’’

But the comparisons to compsands are inevitable, and I think we’ll do OK in those comparisons. Truthfully, I’d rather a customer

tell you than me.

Mike

16

It’s almost got the same micro-bubbly dry vac lam that my last bagged Coda has that they did. Is it just the cloth on this one? Is it a pretty tight weave? No pin holes, I’m sure, just those micro-bubbles speckling in the weave centers. Looks good.

17

Hybrid weaves usually combine fibers with complimentary characteristics. Spectra is just the newest fiber to be mixed

with carbon (joining virtually every aramid known to man), providing a tough, ductile component that offset carbon’s inherent ‘‘brittleness’’.

We’re about to see how it works in a surfboard.

Mike

18

The micro-bubbles you refer to are in the finish coating, not the vacuumed portion of the process.

Have you seen what they look like fresh outta the bag? They’re completely sealed, but every pore

in the blank is replicated on the surface.

This board has no microbubbles, but I understand what you’re seeing in the picture, it’s just the nature

of the weave. Knitteds don’t look quite like anything else, and yes, it’s a very tight fabric. We are

obsessed with fiber-to-resin ratios.

Mike

19

Hey Mike

So the spectra/carbon is actually knitted in the shape of the board…

Slide the blank in nose first, stitch it up at the tail…

Sort of like a stretch fabric/lycra sock…yes??

20

well, not a board i’d ever ride('cause i can’t or just plain won’t) but my god it looks awesome! very space-age tech stuff. great job!