Cutbacks on a longboard

[Roy_Stewart]

That's a 'modern' design from the middle of last century.

Here's a postmodern design from 2011.





http://olosurfer-woodensurfboardsatpipe ... -wood.html

[kayu]

It's an exact replica of a Joe Larkin '63 pig , regardless of what arty-farty term you want call it. It has 2 big advantages over yours 1. It performs better 2. A lot of people will buy one

[Cuttlefish]

Humour me please Roy...
With the deck of the above board you've made the pieces of the deck jointed diagonally as far as I can see.
How can this flex evenly when riding waves in both lefts and rights?

[Roy_Stewart]

The bottom has opposing diagonal planking.

[Dingus]

So there was no pick-up from the passing asteroid? Cheap tin-foil always has had a problem with reception.

[Cuttlefish]

Ok.
Why?
Also wouldn't the forces acting upon the bottom of the board be different to the deck?
I assume there's more area in the wood cross-sections on the bottom than the deck due to rocker so how do you achieve even flex patterns for bottom and deck without twisting?
Just basic questions but I've never read anything about how you've arrived at this kind of construction so be patient.

[WANDERER]

faarg me dead, I don't know whether anyone answered your original question Buzzy, it seemed to degenerate pretty quickly...
Anyway, if you want that foam bounce thing you wanna go as light as you can and make sure you are aiming your re-entry correctly, ie turning just under the top of the section then into the foam.
Light board, 2+1 with a squash, diamond or round tail. That'll do the trick...
It's okay to admit you want a longboard to surf like a shortboard, it aint my bag and IMO it's not what the longboard contest criteria should be about, but thats an argument for another day (again)

[offshore1]

It's an exact replica of a Joe Larkin '63 pig , regardless of what arty-farty term you want call it. It has 2 big advantages over yours 1. It performs better 2. A lot of people will buy one

nice board kayu. Would love to do a cutback on it.
I'm assuming you're keeping the price under a quarter million?

[Roy_Stewart]

Ok.
Why?
Also wouldn't the forces acting upon the bottom of the board be different to the deck?
I assume there's more area in the wood cross-sections on the bottom than the deck due to rocker so how do you achieve even flex patterns for bottom and deck without twisting?
Just basic questions but I've never read anything about how you've arrived at this kind of construction so be patient.

It's easy, there's no twist even if deck and bottom differ in thickness as well as being laid diagonally.

[Trev]

It's an exact replica of a Joe Larkin '63 pig , regardless of what arty-farty term you want call it. It has 2 big advantages over yours 1. It performs better 2. A lot of people will buy one

nice board kayu. Would love to do a cutback on it.
I'm assuming you're keeping the price under a quarter million?

I think I owe kayu an apology. Ithought he was posting a pic of one of Joe's boards under construction.
kayu, are you making that board? If so, great work.
I might have to sell something and commission one.

[Cuttlefish]

Roy,
Other board builders are working symmetrically with their materials while you're working assymetrically?
If that's the case I assume it's your "secret sauce" (or part thereof) of the boards performance which is why you side-stepped my question by saying "it's easy" but it still doesn't make any more sense to me.
Just trying to figure out what makes your boards tick while looking at a 10.1" netbook screen.

[Roy_Stewart]

Roy,
Other board builders are working symmetrically with their materials while you're working assymetrically?
If that's the case I assume it's your "secret sauce" (or part thereof) of the boards performance which is why you side-stepped my question by saying "it's easy" but it still doesn't make any more sense to me.
Just trying to figure out what makes your boards tick while looking at a 10.1" netbook screen.

No doubt it sucks to be you.

.

[Cuttlefish]

The best person I can be is myself!
My netbook is sufficent for my requirements too.
What you think of me is in-consequential to the questions I've posed which have been asked out of simple curiousity about why you've used the diagonal technique.

[Roy_Stewart]

Theoretically it increases flex slightly, in reality I've found that there is no noticeable difference between fore and aft planking ( which i also do ) and diagonal planking in that respect.

Diagonal planking is convenient for the builder and I like the look of it. The convenience is the reason for doing it diagonally, the looks are really inconsequential either way.

There is one other structural reason for diagonal planking: it crosses the diagonal framing at closer to 90 degrees than fore and aft planking.

[kayu]

It's an exact replica of a Joe Larkin '63 pig , regardless of what arty-farty term you want call it. It has 2 big advantages over yours 1. It performs better 2. A lot of people will buy one

nice board kayu. Would love to do a cutback on it.
I'm assuming you're keeping the price under a quarter million?

I think I owe kayu an apology. Ithought he was posting a pic of one of Joe's boards under construction.
kayu, are you making that board? If so, great work.
I might have to sell something and commission one.

I do a few when Joes too busy to do them himself Trev( under strict instructions). Apart from that , they are all original , with a trim-lapped volane glass job, and a hand laminated and foiled wooden "popes-hat" fin.....

[Trev]

It's an exact replica of a Joe Larkin '63 pig , regardless of what arty-farty term you want call it. It has 2 big advantages over yours 1. It performs better 2. A lot of people will buy one

nice board kayu. Would love to do a cutback on it.
I'm assuming you're keeping the price under a quarter million?

I think I owe kayu an apology. Ithought he was posting a pic of one of Joe's boards under construction.
kayu, are you making that board? If so, great work.
I might have to sell something and commission one.

I do a few when Joes too busy to do them himself Trev( under strict instructions). Apart from that , they are all original , with a trim-lapped volane glass job, and a hand laminated and foiled wooden "popes-hat" fin.....

I've been promising myself to get down there and say "hi" and check out his current set up. He was a great friend and support to all us young guys way back then.

I can't remember whether this was my Joe Larkin or the Woosley which replaced it. The art work was mine. Wish I had both the board and the car now.

[Trev]

And while I'm posting old pics. I wonder how many know where this was taken?

[Davros]

Seriously, how many boards have you sold this year Roy?