Balsa Twin Fin

What works and what doesn't. Share design ideas, references and contacts for paipo board builders.
User avatar
bgreen
Big Wave Charger
Posts: 1090
Joined: Fri Aug 19, 2011 5:17 pm
City: Brisbane
State or Province: Qld
Country: Oz
Contact:

Re: Balsa Twin Fin

Unread post by bgreen » Sat Sep 01, 2012 9:49 am

Uncle G,

Speedwise how does this board compare to the finless alaias?

Bob

User avatar
Uncle Grumpy
Big Wave Charger
Posts: 406
Joined: Mon Sep 19, 2011 12:57 pm
City: San Clemente
State or Province: California
Country: USA
Interests: Surfing, Surfboards, Surf History, Fishing, Boats, Dogs, Books
Contact:

Re: Balsa Twin Fin

Unread post by Uncle Grumpy » Sat Sep 01, 2012 12:17 pm

Hi Bob,
I posted about my first session on another thread http://mypaipoboards.org/forum3/viewtop ... 1644#p1644
but to answer the question,
I was pleasantly surprised to find this board is just a little bit slower then my finless boards.
I suspect the very low profile fins and the lack of any real rocker is the key to that.
Paipo surfer in repose,
Nose on the nose,
No grunting he-man pose.
See how fast he goes!
What is it he knows?

GeoffreyLevens
Big Wave Charger
Posts: 364
Joined: Sat Sep 17, 2011 9:58 am
City: Paonia
State or Province: Colorado
Country: USA
Location: Paonia, Colorado
Contact:

Re: Balsa Twin Fin

Unread post by GeoffreyLevens » Sat Sep 01, 2012 12:51 pm

Loved the ride report! So accounting for actual finished thickness, about 1" rocker in front and nada, totally flat out the back?

User avatar
Uncle Grumpy
Big Wave Charger
Posts: 406
Joined: Mon Sep 19, 2011 12:57 pm
City: San Clemente
State or Province: California
Country: USA
Interests: Surfing, Surfboards, Surf History, Fishing, Boats, Dogs, Books
Contact:

Re: Balsa Twin Fin

Unread post by Uncle Grumpy » Sat Sep 01, 2012 2:13 pm

I put the barest hint of concave from the forward third back, but yes it's dead flat fore and aft in the back.
Paipo surfer in repose,
Nose on the nose,
No grunting he-man pose.
See how fast he goes!
What is it he knows?

User avatar
matt23
Big Wave Charger
Posts: 27
Joined: Mon Jul 09, 2012 9:50 am
City: Rumansville
State or Province: Norfolk
Country: Uk

Re: Balsa Twin Fin

Unread post by matt23 » Mon Sep 10, 2012 5:34 am

Lovely looking board.

User avatar
Uncle Grumpy
Big Wave Charger
Posts: 406
Joined: Mon Sep 19, 2011 12:57 pm
City: San Clemente
State or Province: California
Country: USA
Interests: Surfing, Surfboards, Surf History, Fishing, Boats, Dogs, Books
Contact:

Re: Balsa Twin Fin

Unread post by Uncle Grumpy » Mon Sep 10, 2012 12:29 pm

Thank You & Welcome Aboard. 8-)
It appears you have a bit of a hike to the surf.
Paipo surfer in repose,
Nose on the nose,
No grunting he-man pose.
See how fast he goes!
What is it he knows?

User avatar
matt23
Big Wave Charger
Posts: 27
Joined: Mon Jul 09, 2012 9:50 am
City: Rumansville
State or Province: Norfolk
Country: Uk

Re: Balsa Twin Fin

Unread post by matt23 » Mon Sep 10, 2012 2:01 pm

Cheers, long time lurker. Landlocked now but thats going to change. Ive never used balsa but I might have found a good source, does it have the strength not to be glassed? Just oiled?

User avatar
Uncle Grumpy
Big Wave Charger
Posts: 406
Joined: Mon Sep 19, 2011 12:57 pm
City: San Clemente
State or Province: California
Country: USA
Interests: Surfing, Surfboards, Surf History, Fishing, Boats, Dogs, Books
Contact:

Re: Balsa Twin Fin

Unread post by Uncle Grumpy » Mon Sep 10, 2012 6:25 pm

It depends on the balsa a smidge and mostly on the use of the board.
I'm a longtime volunteer at the Surfing Heritage Foundation and we have several old boards in the collection that are balsa without glass.
Usually topped with varnish of one sort or another, or paint and in at least one case a heavy coat of shellac.
Many of them have rails of another wood with balsa used as the center; typically with the stringer of the same wood as the rails; redwood, cedar, doug fir...
I think if I went that route I would give the balsa a good coat of epoxy warmed up with a heat gun for extra penetration and then a varnish topcoat to protect the epoxy. I don't think you could put enough straight oil finish on balsa to waterproof it.
As long as you are not banging rails with the competition, surfing leashless on a rocky shore, or are particularly rough on your gear it ought to work out fine, just needing preventative maintenance on occasion..
Some balsa is very light and that stuff is absorbant but you can find balsa that is fairly stout that water will bead up on for a few moments before it sinks in.
I've heard it depends on the sex of the tree. :oops:
My 2¢.
Paipo surfer in repose,
Nose on the nose,
No grunting he-man pose.
See how fast he goes!
What is it he knows?

User avatar
matt23
Big Wave Charger
Posts: 27
Joined: Mon Jul 09, 2012 9:50 am
City: Rumansville
State or Province: Norfolk
Country: Uk

Re: Balsa Twin Fin

Unread post by matt23 » Wed Sep 12, 2012 12:12 pm

Thanks for the explanation UG, Ive only used paulownia and wr cedar. Its gonna be a while until I can get my hands on the balsa. Ill post some stuff Im working on. Cheers

User avatar
nomastomas
Big Wave Charger
Posts: 525
Joined: Thu Nov 17, 2011 2:30 am
City: Ojai
State or Province: CA
Country: USA
Interests: Surfing, cycling and fishing
Location: Ojai, CA
Contact:

Re: Balsa Twin Fin

Unread post by nomastomas » Mon Sep 17, 2012 12:45 am

Very nice, UG. I've been wanting to do a balsa build, maybe even chamber it. Just haven't made the time, but your build has re-kindled the flame. How much does the board weigh?
"This is a paipo site...isn't it?"
www.tp4surf.com

User avatar
Uncle Grumpy
Big Wave Charger
Posts: 406
Joined: Mon Sep 19, 2011 12:57 pm
City: San Clemente
State or Province: California
Country: USA
Interests: Surfing, Surfboards, Surf History, Fishing, Boats, Dogs, Books
Contact:

Re: Balsa Twin Fin

Unread post by Uncle Grumpy » Mon Sep 17, 2012 9:53 am

I chambered the three inner balsa planks, this batch of balsa was particularly dense and hard, the board weighs 9 lbs..
Paipo surfer in repose,
Nose on the nose,
No grunting he-man pose.
See how fast he goes!
What is it he knows?

User avatar
nomastomas
Big Wave Charger
Posts: 525
Joined: Thu Nov 17, 2011 2:30 am
City: Ojai
State or Province: CA
Country: USA
Interests: Surfing, cycling and fishing
Location: Ojai, CA
Contact:

Re: Balsa Twin Fin

Unread post by nomastomas » Mon Sep 17, 2012 3:28 pm

Where did you get your balsa? Anyone know of a good source for balsa lumber in the Ventura area?
"This is a paipo site...isn't it?"
www.tp4surf.com

User avatar
Uncle Grumpy
Big Wave Charger
Posts: 406
Joined: Mon Sep 19, 2011 12:57 pm
City: San Clemente
State or Province: California
Country: USA
Interests: Surfing, Surfboards, Surf History, Fishing, Boats, Dogs, Books
Contact:

Re: Balsa Twin Fin

Unread post by Uncle Grumpy » Mon Sep 17, 2012 4:33 pm

It came from Austin Hardwood and Hardware in Santa Ana but it's been in my lumber stash for a couple years;
I just discovered I have some more too. :)
I don't know where to tell you to go up there.
There's these guys http://woodsurfboardsupply.com/ but their prices are pretty steep........
Paipo surfer in repose,
Nose on the nose,
No grunting he-man pose.
See how fast he goes!
What is it he knows?

cxk
Forum Grommet
Posts: 2
Joined: Tue Oct 02, 2012 4:37 pm
City: Los Angeles
State or Province: California
Country: USA

Re: Balsa Twin Fin

Unread post by cxk » Wed Oct 03, 2012 2:00 pm

holy smoke that's gorgeous work man.

User avatar
krusher74
Big Wave Charger
Posts: 790
Joined: Wed Nov 07, 2012 3:53 pm
City: easkey
State or Province: co sligo
Country: Ireland
Interests: Surfing, vintage cars and motorbikes
Location: Easky, Co sligo , ireland
Contact:

Re: Balsa Twin Fin

Unread post by krusher74 » Sat Nov 10, 2012 8:54 am

Beautiful looking creation!

Post Reply

Who is online

Users browsing this forum: No registered users and 2 guests