Author Topic: Kronos Nano - going to try smaller while I can  (Read 24587 times)

surfafrica

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Re: Kronos Nano - going to try smaller while I can
« Reply #15 on: July 16, 2017, 09:40:01 PM »
What kind of rocker and contours are you going to go with?  Rocker is the most important thing on a surfboard.  The contours and how they interact with the outline and rocker are also very important. 

Oh man. That I leave up to the shaper. He said it'll have a moderate rocker. I'm guessing a single to double concave, but that is just a guess. I do know he takes some influence from Donald Takayama on his rail shape. I love the rails he put on my longboard SUP.  But ya, how that all fits together with the foil and outline is all apart of that special sauce that I love to eat but have no idea how to make.
50 years old, 5'7", 150 lbs, intermediate
Infinity RNB: 7'6 x 28, 95 L https://goo.gl/SqlWR4
Kronos LB: 8'10 x 26.5, 84 L https://goo.gl/4iQdps
Kronos Nano: 7'4 x 26, 81 L https://goo.gl/kAM8W6

exiled

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Re: Kronos Nano - going to try smaller while I can
« Reply #16 on: July 16, 2017, 11:00:48 PM »
So I went to Pat Rawson with similar design criteria: High performance with just a little more ease of use. For those requests he has a kinda hybrid version of the Pro-Mo that uses the fuller impala nose seen on the Focus Rawson 8'8. The one he is making for me is 8'3.5x28.25x4.5 ~117L for my 220-225 lbs with a little more wing than normal. you can see how the fuller nose gets you a little more parallel on the rails. His take was that going narrower rather than shorter would get the most performance gains, especially on steep waves.

surfinJ

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Re: Kronos Nano - going to try smaller while I can
« Reply #17 on: July 16, 2017, 11:58:43 PM »
My little one. 8-4x30  120l.


surfinJ

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Re: Kronos Nano - going to try smaller while I can
« Reply #18 on: July 17, 2017, 12:03:20 AM »
This better?

supthecreek

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Re: Kronos Nano - going to try smaller while I can
« Reply #19 on: July 17, 2017, 05:05:00 AM »
Creek, thanks for posting those dims. Cool to see those differences. What are those tail widths on the Speeed and your Creek models? The 7'4 I'm lining up has a tail width of 18.3" at 12" up.

ooops....Sorry I missed this question 1st time around.

I have been reading the next few replies about "performance with an extra margin of stability"
That was the exact goal, when I came up with my design.
I started with the qualities of my most stable board and worked in aspects I like most from my performance boards

I asked Bert to use the exact tail from the 9'2 Speeed, with the exact same tail rocker....then somehow, blend it forward into performance rocker of the Acid. The foils, rocker and how he blended it all together is spectacular.... THAT is where the performance magic is.

The 9'2 Speeed and 9'4 Creek = 12" from the tail are both 18 7/8"

Good thread!
In the last 6 years, we went from big boards to tiny boards.....
now we are looking to add back a margin of the comfort that we all loved about SUP to begin with, while keeping the performance!
They all seem to have similar solutions. Very cool!





anonsurfer

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Re: Kronos Nano - going to try smaller while I can
« Reply #20 on: July 17, 2017, 07:11:35 AM »

Oh man. That I leave up to the shaper. He said it'll have a moderate rocker. I'm guessing a single to double concave, but that is just a guess. I do know he takes some influence from Donald Takayama on his rail shape. I love the rails he put on my longboard SUP.  But ya, how that all fits together with the foil and outline is all apart of that special sauce that I love to eat but have no idea how to make.

Whatever rocker and contours you go with document them fully.  This will give you a reference point for future boards.  If possible get a full plan drawing showing outline, rocker, thickness and vee/concave measurements @ 3", 6", 12", 18", 24" from nose and tail and slices at 12" and center.

If you have a current board that you love try to get these measurements for that board as well.  The more reference points you have the better.

Outline is important but I have found that small changes in rocker and contour make a big difference in how a board performs.  For example, my Lazy Boy has 0.1" less rocker and 0.09" less vee at 12" from tail than my Hypto and it is a totally different board. 
Home Break: Doheny
Tic Tac v3 (Hoglet): 6' 6" x 23" x 3.6" x 67L
Omni: 6' 9" x 23" x 3.75" x 68L
Tic Tac (OG): 7' 0" x 22.75" x 3.5" x 70L
In The Pink (Incoming): 8' 0" x 22.9" x 3.25" x 70L

Blackproject Surge S77 (Soft Flex Shaft, T-Grip, +0" OH)

surfafrica

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Re: Kronos Nano - going to try smaller while I can
« Reply #21 on: July 17, 2017, 11:00:22 AM »
So I went to Pat Rawson with similar design criteria: High performance with just a little more ease of use. For those requests he has a kinda hybrid version of the Pro-Mo that uses the fuller impala nose seen on the Focus Rawson 8'8. The one he is making for me is 8'3.5x28.25x4.5 ~117L for my 220-225 lbs with a little more wing than normal. you can see how the fuller nose gets you a little more parallel on the rails. His take was that going narrower rather than shorter would get the most performance gains, especially on steep waves.

I took your Rawson and scaled it to the same size of image as the plans for my Kronos (see pic below).  Pretty similar outlines!

The 9'2 Speeed and 9'4 Creek = 12" from the tail are both 18 7/8"

Looks like my new one is going to be close to those with 18.3" @ 12" up. I was pretty pumped hearing your review of your new one actually...a bit of confirmation on the goal of the this project.

Whatever rocker and contours you go with document them fully.  This will give you a reference point for future boards.  If possible get a full plan drawing showing outline, rocker, thickness and vee/concave measurements @ 3", 6", 12", 18", 24" from nose and tail and slices at 12" and center.


I've been playing around with such a wide variety of different shapes (SIMS, aysm tail RNB, cornice shape with sidecut) that I'm not sure those measurements would really help me out....yet.  I think if I locked into a general shape and then started refining, that would be a different story.  Though, that is one of the reasons I like working with a shaper.  He helps me keep tabs on this.  He listens to my feedback and experiences on the different boards (and sees the odd pic or vid) and then offers his suggestions and refinements. He does send over the final CAD image for me to geek out on which is really cool.  I do like looking at all those specific little details (though don't pretend to know exactly how they all interact).

I attached the general image of what the rocker will look like.
50 years old, 5'7", 150 lbs, intermediate
Infinity RNB: 7'6 x 28, 95 L https://goo.gl/SqlWR4
Kronos LB: 8'10 x 26.5, 84 L https://goo.gl/4iQdps
Kronos Nano: 7'4 x 26, 81 L https://goo.gl/kAM8W6

anonsurfer

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Re: Kronos Nano - going to try smaller while I can
« Reply #22 on: July 17, 2017, 12:23:07 PM »
I attached the general image of what the rocker will look like.

I like it :-)  When scaled it is very similar to my Bean Bag rocker but with a touch more kick in the last 3".   

Let us know what your bottom contours are going to be.  It looks like it is going to be a super fun board!
Home Break: Doheny
Tic Tac v3 (Hoglet): 6' 6" x 23" x 3.6" x 67L
Omni: 6' 9" x 23" x 3.75" x 68L
Tic Tac (OG): 7' 0" x 22.75" x 3.5" x 70L
In The Pink (Incoming): 8' 0" x 22.9" x 3.25" x 70L

Blackproject Surge S77 (Soft Flex Shaft, T-Grip, +0" OH)

surfafrica

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Re: Kronos Nano - going to try smaller while I can
« Reply #23 on: July 17, 2017, 12:34:59 PM »
Another choice I have (had) to make is what type of construction to go with. He's been playing around with two that he's been happy with: 

1.) Vacuum bagged epoxy with kevlar weave and carbon strips.  This is the same one I used on my longboard SUP (white one below) and is pretty light and really tough.  For my buddies who are hard on boards, I'd recommend this one. 

2.) Full carbon.  He's made some full carbons lately that have received some high praise.  They aren't quite as tough as the method above, but are super light.  The carbon 8'8 longboard below is only 9-10 pounds.

After talking with both Kronos and the owner of the carbon boards below, I decided on the full carbon.  I know I appreciate light boards, so let's see what super light feels like.  I was a bit concerned about the stiffness and chatter and what not, but the feedback I've received says it hasn't been an issue.  ...and I've always been diligent about keeping my boards out of the sun (and caring for them in general).  I'm guessing this board will come in between 8-10 pounds or so (but we'll see).

50 years old, 5'7", 150 lbs, intermediate
Infinity RNB: 7'6 x 28, 95 L https://goo.gl/SqlWR4
Kronos LB: 8'10 x 26.5, 84 L https://goo.gl/4iQdps
Kronos Nano: 7'4 x 26, 81 L https://goo.gl/kAM8W6

surfafrica

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Re: Kronos Nano - going to try smaller while I can
« Reply #24 on: July 17, 2017, 12:45:34 PM »
Sorry Creek....I couldn't resist!
50 years old, 5'7", 150 lbs, intermediate
Infinity RNB: 7'6 x 28, 95 L https://goo.gl/SqlWR4
Kronos LB: 8'10 x 26.5, 84 L https://goo.gl/4iQdps
Kronos Nano: 7'4 x 26, 81 L https://goo.gl/kAM8W6

supthecreek

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Re: Kronos Nano - going to try smaller while I can
« Reply #25 on: July 17, 2017, 01:32:10 PM »
ha ha.... I was working on the same thing  :)

Sunova is an "open source" company that is happy to openly share design info, and participate in discussions.

I immediately saw the same thinking going on in your design.... except your boards are so much smaller than mine..... but in relative terms, they are quite similar.

surfafrica

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Re: Kronos Nano - going to try smaller while I can
« Reply #26 on: July 18, 2017, 11:32:25 AM »
Ah, thanks for posting that.  Cool to see the differences.  Here's another take on it with the Creek lined up with the bottom of the board.
« Last Edit: July 18, 2017, 11:34:17 AM by surfafrica »
50 years old, 5'7", 150 lbs, intermediate
Infinity RNB: 7'6 x 28, 95 L https://goo.gl/SqlWR4
Kronos LB: 8'10 x 26.5, 84 L https://goo.gl/4iQdps
Kronos Nano: 7'4 x 26, 81 L https://goo.gl/kAM8W6

surfafrica

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Re: Kronos Nano - going to try smaller while I can
« Reply #27 on: July 18, 2017, 08:57:53 PM »
Let us know what your bottom contours are going to be.  It looks like it is going to be a super fun board!

It's going to be a single concave.
50 years old, 5'7", 150 lbs, intermediate
Infinity RNB: 7'6 x 28, 95 L https://goo.gl/SqlWR4
Kronos LB: 8'10 x 26.5, 84 L https://goo.gl/4iQdps
Kronos Nano: 7'4 x 26, 81 L https://goo.gl/kAM8W6

mrbig

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Re: Kronos Nano - going to try smaller while I can
« Reply #28 on: July 29, 2017, 11:12:00 AM »
Just for fun in the spirit of design outlines here is a pic of a King's. Accelerator 8'4" x 30.75" x  3.75" x  104 liters. The step wing helps a lot.

Given my Tipi Wan Ken Obi balance issues, this beauty is at my current limit..

Surf Africa I am envious of your skills on crazy low literage equipment!!

The Blue Planet vid with the Boize under water freakin' far out!
« Last Edit: July 29, 2017, 11:20:53 AM by mrbig »
Let it come to you..
SMIK 9'2" Hipster Mini Mal
SMIK 8'8" Short Mac Freo Rainbow Bridge
SMIK 8'4" Hipster Twin
King's 8'2" Accelerator SharkBoy

surfafrica

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Re: Kronos Nano - going to try smaller while I can
« Reply #29 on: July 30, 2017, 01:49:43 PM »
I love the look of that King's. Don't be fooled...my boards aren't that small compared to my size. I'm only 5'7 and sub-150 pounds.
50 years old, 5'7", 150 lbs, intermediate
Infinity RNB: 7'6 x 28, 95 L https://goo.gl/SqlWR4
Kronos LB: 8'10 x 26.5, 84 L https://goo.gl/4iQdps
Kronos Nano: 7'4 x 26, 81 L https://goo.gl/kAM8W6

 


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