Bottom turns

[bgreen]

Rather than hijack Krushers board design thread, here are a couple more bottom turn photos - the bottom photo doesn't have much board in the water at all

Bells_closeup2.jpg (8.77 KiB) Viewed 3049 times

Bells_closeup (420 x 600).jpg (33.27 KiB) Viewed 3049 times

[krusher74]

On my own board I stole the back corner design for the alaia, it seems the role from the concave to the V being not a sharp edge grips the water and give you fin like traction with out the drag of a fin.

Its talked about by tom wegner in this video on the design of his seaglass tuna model http://www.youtube.com/watch?v=Wq_Y3GOWM40

[Uncle Grumpy]

On my own board I stole the back corner design for the alaia, it seems the role from the concave to the V being not a sharp edge grips the water and give you fin like traction with out the drag of a fin.

Its talked about by tom wegner in this video on the design of his seaglass tuna model http://www.youtube.com/watch?v=Wq_Y3GOWM40

That's essentially the bottom I have on all my finless stuff to date and they all work.
Re: comments on the other thread
Aside from the influence of leg and body drag(ing) a surf "board" ( & mat) follow the rules of hydrodynamics regardless of surf style.
The inside back corner is the "Sticking Point" both literally and figuratively.
The rest is personal choice or fashion following (or both).

[krusher74]

I really find my foam and fiberglass paipo to be superior in the hold and control department, and after thinking about this I wonder if they have basic bodyboard design all wrong?

If i ever get another bodyboard I will try a custom and get an alaia tail.

[Uncle Grumpy]

I designed this custom bodyboard with lines and concave similar to my alaia and had it made up by Kenu Hawaii (Ken Brown)
I like it better than a typical bodyboard but it still has too much flotation for my taste which is my complaint with most BB's.
I wish it was half as thick. IMNSFHO fat BB style rails are slower than a thin alaia type rail.

[bgreen]

Uncle G,

How thick is this board with too much floation?

Bob

[krusher74]

I designed this custom bodyboard with lines and concave similar to my alaia and had it made up by Kenu Hawaii (Ken Brown)
I like it better than a typical bodyboard but it still has too much flotation for my taste which is my complaint with most BB's.
I wish it was half as thick. IMNSFHO fat BB style rails are slower than a thin alaia type rail.

DSCF1691.jpg

Toobz bodyboards in central cal will shave a bodyboard core down to any thickness you like. I'm 165/170 lbs and i ride a 41"/41.5" bodyboard, a 42" and above feels like a boat, if that board you have in the pic is like 50" can see why it would be far to boyant!
You can also get the PP core which is stiffer and 1,2 or 3 stringer rods if you like a real stiff board, that would get a bodyboard closer to a wood/fiberglass paipo.