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Bonzer Sups?

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Created by exiled 2 months ago, 6 Mar 2019
exiled
192 posts
6 Mar 2019 10:57AM
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Has anyone out there seen any successful Bonzer shaped sups? With all of the things that have been tried by now, I would have figured that bonzer or two would be out there.

Kami
1352 posts
9 Mar 2019 6:04PM
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Good idea Exiled, I've Just a virtual one I got in a folder waiting to be built


www.shape3d.com/Viewers/Viewer3D.aspx?Board=4780

exiled
192 posts
10 Mar 2019 7:43AM
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Nice looking out line, Is it laid out for a three fin set up or 5? what would the dimensions look like for a 120l board?

Still seems weird that no one has built one yet though. I'd love to hear a ride report.

Kami
1352 posts
10 Mar 2019 4:37PM
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It's three fins set up. The difference from 5 ones is the fact that 3 got a '' venturi effect'' aside of the single fin. 3 fins' Venturi is a kind of funnel where water flow is convergent to the single fin to add drive and therefore planning. And it can be a concave at center of the board as well.

When the 5 fins set up are mostly concaves and fins system hooking water flow along the rail. I personally think about 5 fins that the four leading ones are acting more as a Twinzer... and it's flat to belly at the center of the board.

For instance of 5 fins Bonzer I study that Bonzer 5 fins as a new board for my lucky son. As you can watch above here. BTW the 5 fins Bonzer is looser than the 3 fins.

www.shape3d.com/Viewers/Viewer3D.aspx?Board=5273


For that outline and foil, 120 litres boards the dims are here. Please note that design is an oriented Short SUP and need to ride with a weight ratio of approx 1,1. It can be studied as a longboard oriented SUP.

www.shape3d.com/Viewers/Viewer3D.aspx?Board=4780


scott mckerc
WA, 200 posts
10 Mar 2019 7:21PM
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Agree exiled
should be tried
Had some 5 fin cambell brothers bonzer surf board and wavesailing boards shaped by mick manolas under license that were sweet back in the day. 1991
They definitely producer speed down the line
5 fin set up wasn't in line though? front one further out to the rail than the back one.

Kami
1352 posts
10 Mar 2019 8:46PM
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Select to expand quote
scott mckerc said..
Agree exiled
should be tried
Had some 5 fin cambell brothers bonzer surf board and wavesailing boards shaped by mick manolas under license that were sweet back in the day. 1991
They definitely producer speed down the line
5 fin set up wasn't in line though? front one further out to the rail than the back one.




I use 4 sets of plugs to figure out the 3 Fins Bonzer as the original one was.

As I look around and from my own small experience from a board I built, I better like the 5 fins rather than the 3 fins I had own and surf too long time ago.

Note that there are different concaves bottom shape up to the number of fins. The 3 one get a main divergent concave with a flat outside panel as seen above here


While the 5 fins is a four concaves convergent system.


exiled
192 posts
11 Mar 2019 11:36AM
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The other nice thing about the 5 fin set up is the availability of FCS bozer fins in that format. I've only seen the 3 fin runners as glass-ons, not really an option for the non-traditional build I'm contemplating.

Kami, I'm about 107kg, so the ratio would be close to what you are talking about, but at 8'9 of length, aren't you pretty much at long board lengths any way? My understanding was that bonzers need to be driven from the tail. So no matter how long you make it, you still want to get back there asap, right?

Kami
1352 posts
11 Mar 2019 3:22PM
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Select to expand quote
exiled said..
The other nice thing about the 5 fin set up is the availability of FCS bozer fins in that format. I've only seen the 3 fin runners as glass-ons, not really an option for the non-traditional build I'm contemplating.

Kami, I'm about 107kg, so the ratio would be close to what you are talking about, but at 8'9 of length, aren't you pretty much at long board lengths any way? My understanding was that bonzers need to be driven from the tail. So no matter how long you make it, you still want to get back there asap, right?




You are right about fins Exiled because FCS is doing what they call the B5 fins set. And personally, I would prefer the bottom shape of 5 fins getting fins closed to the rail of that wide board which is a SUP.

The B5 set is looser than the 3 fins with runners set and allows to ride the board more from the front foot. That B5 system would fit on the kind of board I recently designed to Hoppo.
www.shape3d.com/Viewers/Viewer3D.aspx?Board=5447

Would I suggest to you that combo, mixing the same kind of Hoppo's board outline with the Bonzer 5?

scott mckerc
WA, 200 posts
12 Mar 2019 8:22AM
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Select to expand quote
Kami said..

scott mckerc said..
Agree exiled
should be tried
Had some 5 fin cambell brothers bonzer surf board and wavesailing boards shaped by mick manolas under license that were sweet back in the day. 1991
They definitely producer speed down the line
5 fin set up wasn't in line though? front one further out to the rail than the back one.





I use 4 sets of plugs to figure out the 3 Fins Bonzer as the original one was.

As I look around and from my own small experience from a board I built, I better like the 5 fins rather than the 3 fins I had own and surf too long time ago.

Note that there are different concaves bottom shape up to the number of fins. The 3 one get a main divergent concave with a flat outside panel as seen above here


While the 5 fins is a four concaves convergent system.



Gotcha
so the four fin box's were for for /aft movement of a thruster set up.

So a quad concave 5 fin as opposed to the deep double. very interesting.

Have you shaped that one yet? would love to see.

Would you be thinking a 5 fin deep double would be running less rocker than a traditional thruster?

IN time I actually ended up with thrusters running with the eclipticals for windsurf, but reckon for sup the 5 fin super squirt model probably still the go

Kami
1352 posts
23 Mar 2019 8:37AM
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Select to expand quote
scott mckerc said..


Kami said..



scott mckerc said..
Agree exiled
should be tried
Had some 5 fin cambell brothers bonzer surf board and wavesailing boards shaped by mick manolas under license that were sweet back in the day. 1991
They definitely producer speed down the line
5 fin set up wasn't in line though? front one further out to the rail than the back one.







I use 4 sets of plugs to figure out the 3 Fins Bonzer as the original one was.

As I look around and from my own small experience from a board I built, I better like the 5 fins rather than the 3 fins I had own and surf too long time ago.

Note that there are different concaves bottom shape up to the number of fins. The 3 one get a main divergent concave with a flat outside panel as seen above here


While the 5 fins is a four concaves convergent system.




Gotcha
so the four fin box's were for for /aft movement of a thruster set up.

So a quad concave 5 fin as opposed to the deep double. very interesting.

Have you shaped that one yet? would love to see.

Would you be thinking a 5 fin deep double would be running less rocker than a traditional thruster?

IN time I actually ended up with thrusters running with the eclipticals for windsurf, but reckon for sup the 5 fin super squirt model probably still the go



I've been waiting the Bonzer 5 fins to deliver from the CNC. As you can see the Bonzer bottom on picture, this one is what I called up here a convergent system. It's running as concaves on Thruster does plus an elliptic vee around the fin base. These 2 components (convergent concave and elliptic vee) create the specific look of the Bonzer 5 fins.
To speak about the rocker needed by this specific bottom shape, i would say that all concaves increase the tail lift and the one I design here is doing it also.
In the case of the convergent Bonzer 3 with runners ( see up here) the rocker would do an S ... but would need a all topic to speak about!

BTW, my son is so lucky to have a shaper/designer Dad







scott mckerc
WA, 200 posts
26 Mar 2019 6:35PM
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Definitely interesting how the concave shallows out toward the box and V's only out of the tail
The cambell brothers ones I had ran all the way out through the tail.
Going to go for the five finner as well.
When I get her shaped will post.
Quite excited about the squirty acceleration sensation.
definitely a more drawn out out cutty to them though but smooth.
Like the retro beak nose too. stylish

Bender
WA, 2055 posts
27 Mar 2019 7:27AM
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Scotty your welcome to borrow this little stick to see how the Campbell Bros blend the bottom with the 5 fin set up. it surfs so fast and smooth

scott mckerc
WA, 200 posts
31 Mar 2019 8:39AM
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Select to expand quote
Bender said..








Scotty your welcome to borrow this little stick to see how the Campbell Bros blend the bottom with the 5 fin set up. it surfs so fast and smooth


obviously you got one bender. '
retro king.

Kami
1352 posts
6 Apr 2019 5:44AM
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Finally, I can spend an hour to give some finish to that shaped blank completed file.
This is a shorty but this is the same principles of design to do a SUP.
Then after it's a matter of measurements, adjustments to do stand-up paddling boards.







To had a close look at what I'm doing cause I wear eyed corrective glasses, I got the help of the S3D program to see where I have to finish up by hand







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