Quobba fins launched in West Oz

Graeme Powell
Design Outline

Two Australian surfing mates who spent almost 40 years researching and producing a new design of surfboard fin believe they are set to revolutionise the world of surfing.

Glenn Miller and Wayne Blakeney have used the opening day of the World Surf League's Margaret River Pro to unveil their creation, after they secured global patents for their design.

The Quobba fins — the name coming from the Aboriginal word meaning "first" or "best" — are designed to give board riders more speed and greater flexibility on the wave.

They were inspired by the movement of the fastest fish in the ocean and have taken 38 years and more than $2.5 million to develop.

Mr Miller, 61, said he first began thinking about the design of the fins in his early 20s.

"Basically being a surfer all my life I just wanted to make a surfboard go faster," he said.

"It's part of my surfing style. I have a need for speed. It was a lot of time thinking about how water moves across a foil."

How the fins work

Mr Miller said the fins were designed to increase a surfboard's speed by giving it lift through the water.

"We are dealing with a foil. A fin is a foil. It's like an aeroplane wing on its side. And foils give lift," he said.

"We are creating a low pressure system around the base of the surfboard to help the fin system get sucked forward into that low pressure system as the surfboard moves through the water.

"The faster the water is moving around our fin, the more the pressure becomes lower.

"We have a saying, 'the faster you go, the faster you go,' because that is what is actually happening. It's like a turbo."

Former pro surfer Jano Belo has been trialling the Quobba fins at his home break of Margaret River (Photo: Anthony Pancia)

Long and expensive development

Mr Miller said the fin was developed by trial and error with each new prototype costing $US900 ($1,160), but he realised he had found the perfect model as soon as he fitted the latest design to his board.

"When I first tried the fins out in reasonable-sized waves I realised we had a game-changer," he said.

"They took off like a rocket. They held. They turned on a dime and the more that people rode them it began to snowball.

Mr Blakeney said surfers who tried the prototypes, including some professionals, had raved about them.

"Most of the guys who try them aren't giving them back. We can't get them back," he said.

Quobba fin developers Wayne Blakeney, Glenn Miller and former pro-surfer Mitch Thorson at Margaret River (Photo: Anthony Pancia)

Former professional surfer Mitch Thorson was so impressed with the fins he became an investor in the company about four years ago.

The trio were soon able to source the material, a new polymer, for their fins from Switzerland and encourage a designer — who used to work for Rolls Royce — to come on board.

It took them another two years searching through China and Asia before they found a company in Taiwan that could produce the fins.

Former professional surfer Jano Belo, who is now based in Margaret River, used the fins when he won the King of the Point surfing competition at Perth's Trigg Beach in March.

"The first time I rode them I felt it straight away," he said.

"I got more speed and more hold and straight away I wanted them. I've been riding them for about five months now and they feel great."

//GRAEME POWELL
© Australian Broadcasting Corporation. All rights reserved.

Comments

james-jay's picture
james-jay's picture
james-jay commented Thursday, 12 Apr 2018 at 7:46am

Similar concept to the wing fin of the 80's, I hope it works out well for them

udo's picture
udo's picture
udo commented Thursday, 12 Apr 2018 at 7:58am

$230 a Thruster set
Why Polymer ?

Ricko2526's picture
Ricko2526's picture
Ricko2526 commented Thursday, 12 Apr 2018 at 8:35am

Would the lift from the boardshape far outweigh any lift that would be generated from such small 'wings' on the fin? The foil boards have really large wings - but are they creating a lot of lift or more using the stability and reduced friction of having board out of water to generate speed. No expert, and I guess if it feels good ....

donweather's picture
donweather's picture
donweather commented Thursday, 12 Apr 2018 at 8:38am

At $230 a pop they'd wanna be something pretty fcking special!!

udo's picture
udo's picture
udo commented Thursday, 12 Apr 2018 at 8:48am

And there designed to break off at the tab if they get a Hard Knock.

fraser-gordon's picture
fraser-gordon's picture
fraser-gordon commented Thursday, 12 Apr 2018 at 9:01am

That's not Jano that's Nato at G-land.

thermalben's picture
thermalben's picture
thermalben commented Thursday, 12 Apr 2018 at 9:17am

Well spotted.. that's how it was supplied at our end. Caption removed.

udo's picture
udo's picture
udo commented Thursday, 12 Apr 2018 at 9:17am

Yes...or Jano is great at Switchfoot

GP's picture
GP's picture
GP commented Thursday, 12 Apr 2018 at 10:22am

You are right.
The caption has been corrected in the original story.

Graeme Powell

udo's picture
udo's picture
udo commented Thursday, 12 Apr 2018 at 10:32am

So its Nato using Quobba fins ?

GP's picture
GP's picture
GP commented Thursday, 12 Apr 2018 at 10:47am

Yes he was using an earlier prototype of the fins at G-Land in 2017.
Plenty of other professionals have been using them - some big names among them - but due to sponsorship agreements they can't be named.

crg's picture
crg's picture
crg commented Thursday, 12 Apr 2018 at 10:52am

At $230 a pop I'd suggest supplying trial fins to all shops. If they feel $100 better they'll sell. Without that feeling though, it's a big jump in price for joe average.

donweather's picture
donweather's picture
donweather commented Friday, 13 Apr 2018 at 10:37am

Completely agree!!! Trialling before lashing out $230 is the only way to go.

Rollopost's picture
Rollopost's picture
Rollopost commented Monday, 16 Apr 2018 at 4:45pm

re-sell should be ok with people keen to try?

SNBSROG's picture
SNBSROG's picture
SNBSROG commented Thursday, 12 Apr 2018 at 10:56am

isnt lift created through concave?
interesting design, i would love to try them in my everyday board to see if there is a difference

Ben Dover

Rollopost's picture
Rollopost's picture
Rollopost commented Monday, 16 Apr 2018 at 4:42pm

one thing I know about fluid dynamics is it's complicated. So if it works, I'm in.

ron's picture
ron's picture
ron commented Thursday, 12 Apr 2018 at 11:04am

Surprised the article just mentions 'trial and error' in development and he knew it was done after riding them once. I would have expected to see allot more scientific info or flow tank videos etc. The website only shows one diagram of the high and low pressure theory. Looks either computer simulation or just graphic.

Show us more! Sell me on them. Get some surfers ive heard of to ride them and show it!

ron's picture
ron's picture
ron commented Thursday, 12 Apr 2018 at 11:09am

No info on sizing on the website either, none at all.

quokka's picture
quokka's picture
quokka commented Thursday, 12 Apr 2018 at 12:26pm

I would have thought more lift = less hold due to less fin in the water?

OHV500's picture
OHV500's picture
OHV500 commented Thursday, 12 Apr 2018 at 12:30pm

Be interesting to see what a shaper/designer thinks of how these fins would change up their boards - Sharkman are you out there ?

roachdog's picture
roachdog's picture
roachdog commented Thursday, 12 Apr 2018 at 1:16pm

Hello! I've been involved in the testing of the fins for the past of couple of years. These fins really perform and it is amazing the difference the small keel makes to your board's performance . They are faster and create really good lift once you get them going - especially on clean faces. They also feature incredible hold heading up the face of a wave, through carves and in the barrel. Once you have worked them out you can basically bottom turn in a more critical part of the wave . When I go back to my normal fins it feels like my board has flat tyres.... There has been a huge amount of behind the scenes work go into these fins over past few years. This article has popped up pretty quickly and there is lot more info & extra features to come. I will stop talking it up now but we have already had some great feedback from some pro-level surfers so stay tuned!

philosurphizingkerching's picture
philosurphizingkerching's picture
philosurphizing... commented Thursday, 12 Apr 2018 at 1:31pm

when you say they are faster, can you quantify that with a number.
10 percent ? 20 percent?
How much faster do they make a surfboard go.

udo's picture
udo's picture
udo commented Thursday, 12 Apr 2018 at 1:29pm

Good lift once you get them going .....thought the extra lift was instant ?
Have to call bullshit on 2.5 mill to develop them .

thermalben's picture
thermalben's picture
thermalben commented Thursday, 12 Apr 2018 at 1:33pm

Perhaps it's costed out at $65K worth of annual 'research' over 38 years?

Cacadajy's picture
Cacadajy's picture
Cacadajy commented Thursday, 12 Apr 2018 at 3:32pm

Udo, not having a go but calling bullshit on their development costs is like looking at a Victorior's Secret lingerie model and calling bullshit on how much she invested in bikini line waxes. :)
Had a mate who was involved with developing a marine based hull design. Computer modelling and tank testing costs blew me away when he told me.
Innovation is good, maybe these fins will change fin and board design into the future or maybe they are just another "winged keel" etc.

memlasurf's picture
memlasurf's picture
memlasurf commented Thursday, 12 Apr 2018 at 4:42pm

Which would you rather? A Victoria's Secret Lingerie model waxed and ready to go or a set of fins?

Cacadajy's picture
Cacadajy's picture
Cacadajy commented Thursday, 12 Apr 2018 at 7:40pm

Set of fins! The enjoyment would last longer than about 3 minutes.
I aint no Gary G.

Gary G's picture
Gary G's picture
Gary G commented Monday, 16 Apr 2018 at 10:01am

Gary promises it doesn't usually happen like that and it was a once off xoxo

We
are
fa-mi-ly:
I got all my Gary's and me

roachdog's picture
roachdog's picture
roachdog commented Thursday, 12 Apr 2018 at 2:20pm

I just wanted to put out there, in my opinion, these fins are bloody great. I am not the guy to go into detail about them via this forum but hopefully they can get them out there for everyone to have a go because I won't be giving my set back! Cheers

udo's picture
udo's picture
udo commented Thursday, 12 Apr 2018 at 2:23pm

So how much faster do you think they make you go ?

3dfins's picture
3dfins's picture
3dfins commented Thursday, 12 Apr 2018 at 4:11pm

is there any CFD testing to show low pressure increase? or better foil performance?

3DFINS

ron's picture
ron's picture
ron commented Thursday, 12 Apr 2018 at 4:18pm

Can anyone explain exactly what lift means in terms of fins? If the fins literally lift making the tail want to lift how does that help in good waves?

Few things i've read say they work particularly well in good waves. My main problem in good surf is trying to slow down and manage speed, last thing you need when its hollow and 4-6 foot is more speed is it? What am i missing here? I want that tail biting in, not lifting. Is this just semantics?

What do they do for you in small surf, this is where everyone needs more speed!

Faunt Leroy's picture
Faunt Leroy's picture
Faunt Leroy commented Thursday, 12 Apr 2018 at 4:35pm

Where have you tested them Roachdog?

blindboy's picture
blindboy's picture
blindboy commented Thursday, 12 Apr 2018 at 4:42pm

My understanding is that lift in surfboards is created by the fact that water has to travel further across the top of the rail than across the bottom. This creates less pressure on the top than the bottom so the net pressure on the board is up, therefore lift. How these fins create additional lift is not clear to me but I definitely don't rule it out. For me the gold standard here would be blind testing so the surfer does not know what fins are in the board he is surfing. In practice, this poses real difficulties but could be done. I am available at my usual rates for consultancy work ie free beer.

freeride76's picture
freeride76's picture
freeride76 commented Thursday, 12 Apr 2018 at 5:31pm

Incorrect understanding BB.

Lift is created by the water flowing across the hull and creating a perpendicular force to the flow direction.

I thought after all your battles on here with Roy you would have a basic understanding of hydrodynamics.

Spuddups's picture
Spuddups's picture
Spuddups commented Friday, 13 Apr 2018 at 5:26am

Both of you are incorrect. I have nothing to back this up with though. Slow day here so I figured I'd try to start an argument.

OHV500's picture
OHV500's picture
OHV500 commented Friday, 13 Apr 2018 at 12:20pm

awesome :))))

blindboy's picture
blindboy's picture
blindboy commented Sunday, 15 Apr 2018 at 4:59pm

How does water flowing across the hull create a perpendicular force?

memlasurf's picture
memlasurf's picture
memlasurf commented Thursday, 12 Apr 2018 at 4:44pm

Wonder how the C drive boys are doing. Those things fly as well but they can' get them moving.

udo's picture
udo's picture
udo commented Thursday, 12 Apr 2018 at 4:56pm

Cant get them moving..What does that mean memla ?

memlasurf's picture
memlasurf's picture
memlasurf commented Thursday, 12 Apr 2018 at 5:23pm

Can't get enough people to buy them as far I know or backing to push the product. I love them, however not enough people do and they weren't $230 a set. Surfers are tight arses by nature, so $230 for a set of fins is $$$$ for the average plugger. Geez, people whinge about a board worth $800 which means these fins are 25% of the cost.

gasman's picture
gasman's picture
gasman commented Friday, 13 Apr 2018 at 9:11pm

I'd love to buy some cdrive fins - always been interested in getting a set of those to try out. But they seem keen to make it virtually impossible to get hold of them. It's like they don't actually want your money. The website's down half the time, and even if it's up they don't seem to sell futures 99.9% of the time. It all just looks unbelievably amateur which hardly inspires confidence. Maybe Quobba have got a better game than cdrive when it comes to the marketing/commerce side of things - although who knows if the product is actually any good.

udo's picture
udo's picture
udo commented Friday, 13 Apr 2018 at 9:33pm

C-drive Futures and Dual tabs Thruster and Quad sets promised by August
Where are you located gasman....you chasing future or dual Tab C-drives ?
Its not only stand up surfers chasing them ...The SUP crowd love them also.

CryptoKnight's picture
CryptoKnight's picture
CryptoKnight commented Thursday, 12 Apr 2018 at 5:25pm

Good lift, really good lift, extra lift, instant lift, literal lift, any lift, lots of lift, created lift. I agree, all this talk of lift is very, very exciting! You can never have enough lift! As has been highlighted, what’s it like without lift? Flattened tires sums it up well.

How fast will lift go? Very, very, very fast no doubt!

simba's picture
simba's picture
simba commented Thursday, 12 Apr 2018 at 5:30pm

jeez its good to see some new developments in the surfboard industry and hats off to these guys for having a go but to make back the 2.5 mil probably wont happen.There going to have to have a pro of high repute on board to pull it off..........anyway good luck fellas.

simba

blindboy's picture
blindboy's picture
blindboy commented Thursday, 12 Apr 2018 at 5:36pm

Reading it more carefully has raised a few issues. If the fins create a "low pressure area" around the base of the board the main question would be low compared to where? I am guessing that what they are trying to say is that the fins create low pressure in front of the fins and high pressure behind, which means the net force would be forward. If so, lift is not involved. Whatever they are thinking they really need to do better than this in explaining the benefits........unless they are so obvious under foot that no explanation is necessary. It would be nice if their hype was true. An extra hundred bucks for a big increase in performance that you can swap between boards sounds like a reasonable deal to me.

kaiser's picture
kaiser's picture
kaiser commented Thursday, 12 Apr 2018 at 6:28pm

‘Lift’ is the new ‘drivey’

udo's picture
udo's picture
udo commented Thursday, 12 Apr 2018 at 6:40pm

Fraser g....did you see Nato surfing with these Fins ?

fraser-gordon's picture
fraser-gordon's picture
fraser-gordon commented Friday, 13 Apr 2018 at 8:25am

No mate but I'm sure he was ripping.Nato South Aussie legend!!!

Wharfjunkie's picture
Wharfjunkie's picture
Wharfjunkie commented Thursday, 12 Apr 2018 at 7:09pm

Interesting really need independent appraisal rather than feedback from those handed these fins for product testing.

tubeshooter's picture
tubeshooter's picture
tubeshooter commented Thursday, 12 Apr 2018 at 8:59pm

For me, yeah, I,m a little skeptical. So many factors and variables determine your speed on a wave ,from board design to personal styles to wind chop etc,, and unless your pretty competitive and are looking for a zero point fuckall increase in your performance level , then I can't see these fins being a sort after commodity for the average surfer at that price .Maybe more for cashed up punters who often get a placebo effect from other performance enhancing products available on the surf market.

indo-dreaming's picture
indo-dreaming's picture
indo-dreaming commented Thursday, 12 Apr 2018 at 9:16pm

Always keen to try out new fins, but the price sounds pretty crazy and $2.5 million to develop?

Ada gula, ada semut!

ron's picture
ron's picture
ron commented Thursday, 12 Apr 2018 at 9:30pm

The price would come down if they can sell more.

When surfing good waves do any of you guys think to yourself that you need more speed?

Small or average waves then of course we all do.

PCS PeterPan's picture
PCS PeterPan's picture
PCS PeterPan commented Thursday, 12 Apr 2018 at 9:39pm

Sorry for sounding negative but as my day job is working on 580 000 kg A380 Airbus Aircraft , please refrain from using "LIFT" in describing the effect of these fins , It may feel like lift but anyone with a physics background will tune out from the start.
On the other hand , your fins may give greater hold/control along with reduced drag , if so you may be on a winner.
Best of luck blokes.

Ellen's clam's picture
Ellen's clam's picture
Ellen's clam commented Friday, 13 Apr 2018 at 4:44pm

It looks like they have employed wing fences and aspiration of the boundary layer via the little breathing holes at the base of the fin.
Would be interested to try just for shits and gigs. Next time I see Jano, I’ll try to borrow a set.

tubeshooter's picture
tubeshooter's picture
tubeshooter commented Thursday, 12 Apr 2018 at 10:35pm

38 years in the making? A designer from Rolls Royce ?Polymer from the Swiss, And made in Taiwan .A more informative product launch backing the physics and hydrodynamics might have been a little more effective

SurferSam's picture
SurferSam's picture
SurferSam commented Thursday, 12 Apr 2018 at 11:10pm

A lot of counterintuitive statements - more lift plus more hold?? Eh it's one or the other.

John Eyre's picture
John Eyre's picture
John Eyre commented Friday, 13 Apr 2018 at 2:12am

Why are they wearing dark sunglasses?

loungelizard's picture
loungelizard's picture
loungelizard commented Friday, 13 Apr 2018 at 9:23am

nailed it ! and at 2 in the morning..

John Eyre's picture
John Eyre's picture
John Eyre commented Friday, 13 Apr 2018 at 9:37am

Yeah it was too.....hahaha

udo's picture
udo's picture
udo commented Friday, 13 Apr 2018 at 7:56am

Plenty of other Proffesionals have been using them - Some big names among them but due to sponsorship agreements they can't be named....
Why can't they be named...they have been trailling your product while being sponsored by FCS Futures or another Fin Company....is what you mean ? ?
A naughty move by those surfers...but fucking Fantastic for Quobba Fins

That there is the best FREE Exposure your ever going to get........!

savanova's picture
savanova's picture
savanova commented Friday, 13 Apr 2018 at 12:12pm

The big names ride whoevers boards work wherever they are so the sponser thing is BS. Sounds to me like old mans Buttonshaws late 80's revolutionary leg rope plug that would make your board come up deck up after every wipeout.

ron's picture
ron's picture
ron commented Friday, 13 Apr 2018 at 8:54am

They should send a set to one of the decent surf review youtube channels. Noel Silas is a good surfer and could talk about them honestly.

John Eyre's picture
John Eyre's picture
John Eyre commented Friday, 13 Apr 2018 at 9:21am

Udo what do you mean.......who is getting the exposure...?
There is no photographs of the fins.....just some guys wearing dark sunglasses...

Faunt Leroy's picture
Faunt Leroy's picture
Faunt Leroy commented Friday, 13 Apr 2018 at 11:48am

Secret Agent Men

udo's picture
udo's picture
udo commented Friday, 13 Apr 2018 at 9:53am

Meaning that big name pro surfers have been using there Product.....and any photo /vid footage captured is theres to use
Sponsored surfers error if there caught out testing another brand fin .

ljkarma's picture
ljkarma's picture
ljkarma commented Friday, 13 Apr 2018 at 10:13am

whooutthereisgunnatelllhim?

John Eyre's picture
John Eyre's picture
John Eyre commented Friday, 13 Apr 2018 at 11:22am

As if............who cares if someone uses another brand of fin............who do you think they are......... has anyone ever heard of this Pro Surfer "Former pro surfer Jano Belo" ???

Ellen's clam's picture
Ellen's clam's picture
Ellen's clam commented Friday, 13 Apr 2018 at 4:12pm

I’m pretty sure a fin sponsor will care big time if one of their trained monkeys is documented having a good time on the competition’s product.
Jano is a Brazilian ex pro who has made Australia home. He’s got some serious air skills.

John Eyre's picture
John Eyre's picture
John Eyre commented Sunday, 15 Apr 2018 at 3:03am

Thanks for explaining who jano is eclam

southey's picture
southey's picture
southey commented Friday, 13 Apr 2018 at 11:36am

The extra drag that they will exhibit whilst paddling in is a big question from me . However i can see the extra hold in and speed increase . ( Lets not get " ...Lift " back ) as mentioned previously its all about lift , when infact the Physics of large masses flowing is never correct . John i think your being baited . As for money spent on research , its hard to quantify though i can say Scientists never come cheap . Unfortunately Surfing is full of gimmicks and often from the most revered , i hope this isn't another . Send me a set and a ticket to Panaitan .

" SA's Reserve Capacity "

tubeshooter's picture
tubeshooter's picture
tubeshooter commented Friday, 13 Apr 2018 at 7:39pm

If they want me to fork out $230 then they should provide a bit more technical data about the product. I,m personally not sold on the low pressure thing being stable enough to have a quantative effect ,through all turns and transitions , through all water conditions, current , wind , foam etc and given the variables that affect water flow around a fin, yet alone 3 of them.
Show us the science... here is a link to some technical stuff about surfboard fins and bio inspired design. Its lengthy pdf I think but interesting nonetheless.. https://digitalcommons.mtu.edu/cgi/viewcontent.cgi?article=2003&context=...

blindboy's picture
blindboy's picture
blindboy commented Friday, 13 Apr 2018 at 7:59pm

Well that's how you do it of you are serious tubeshooter but it only considers single fin set ups so not sure it contributes much to modern design.

tubeshooter's picture
tubeshooter's picture
tubeshooter commented Friday, 13 Apr 2018 at 8:23pm

Agreed BB,,The assimilation I made with that link was to the modelling designs based on marine life. This link would go to more modern designs.. again another pdf..
https://eprints.qut.edu.au/16824/1/c16824.pdf

blindboy's picture
blindboy's picture
blindboy commented Friday, 13 Apr 2018 at 8:52pm

Interesting though I am not sure that there would be general agreement that thrusters are faster in small waves.

indo-dreaming's picture
indo-dreaming's picture
indo-dreaming commented Saturday, 14 Apr 2018 at 7:36am

Video on fins

Introducing Quobba Fins from Quobba on Vimeo.

Ada gula, ada semut!

ljkarma's picture
ljkarma's picture
ljkarma commented Saturday, 14 Apr 2018 at 8:05am

This is so much rubbish. The modelling they show at 30 sec is just one example IMHO.
The coloured lines flowing of the rear of the fin at the base could only be disturbed turbulent water flow created and magnified by their base flanges and wings.
That would be induced DRAG, plain and simple.
This must have been released on April 1st and just posted on SW late!

lostdoggy's picture
lostdoggy's picture
lostdoggy commented Saturday, 14 Apr 2018 at 8:17am

If I want speed and hold in good waves I will surf a channel bottom.

udo's picture
udo's picture
udo commented Saturday, 14 Apr 2018 at 3:52pm

Why the use of Polymer ?

CryptoKnight's picture
CryptoKnight's picture
CryptoKnight commented Saturday, 14 Apr 2018 at 11:50am

Boy, most are just simply asking far too much! The end result of a better fin and more lift has already been introduced! Highly advanced googlers want more, experts demand more! How in the blazes are expert designers, scientists, developers and technicians supposed to keep track of all of their experimentation, procedures, measurements, testing, results etc! Further more, why would experts even bother! That approach is the realm of complete idiots and amateurs! Sure, it’s realistic to provide a better fin, and produce lift, but it’s just plain ridiculous to expect Quobba to keep track of the thinking, ideas and steps it took to reach that point. Again that approach is for knuckle heads. That applies to any expert in any field for that matter.

ron's picture
ron's picture
ron commented Sunday, 15 Apr 2018 at 11:25am

Is this sarcasm? Its so close to the edge i cant tell.

blindboy's picture
blindboy's picture
blindboy commented Saturday, 14 Apr 2018 at 12:16pm

crypto, the thinking here seems to be more that it is ridiculous to expect people to pay that much more for their fins without substantial evidence that they are worth it. I haven't noticed any closed minds on the issue. If the manufacturers claim that they have done the research then we are entitled to see it if they want us to part with our money.

crg's picture
crg's picture
crg commented Saturday, 14 Apr 2018 at 1:17pm

As much as detailed research numbers are important for those knowledgeable enough to understand and promote the product, I still think any proper scientific data and modelling is mostly irrelevant to joe public. Trial fins for prospective purchasers. If they're noticeably better they'll sell. Period.

CryptoKnight's picture
CryptoKnight's picture
CryptoKnight commented Saturday, 14 Apr 2018 at 1:54pm

So I guess, in a nutshell,
people are asking to see runs on the board. Evidence of expertise, the track record, even the markers of the trail of this long term project. References so to speak.

Who needs that kind of flamin’ rubbish! What kind of knucklehead would even have it, let alone provide it! Certainly not experts. That’s what google is for.

blindboy's picture
blindboy's picture
blindboy commented Saturday, 14 Apr 2018 at 3:05pm

With the technology available today in terms of sensors etc they should be able to justify the speed claim. Don't some of the watches give speed read outs these days? Even Joe Public understands speed data!

sharkman's picture
sharkman's picture
sharkman commented Sunday, 15 Apr 2018 at 8:14am

how would you gauge the speed , as every surfer has a different style and technique , all waves are different , perhaps Kelly's wave pool ?
After reading all the comments here , makes you realize why surfing is still in the dark ages from a technical understanding and application point of view.
I have a novel idea , create a surfboard hull that goes faster , then adapt /R&D the fins that go with it , try them out in big hollow surf at high speeds!

blindboy's picture
blindboy's picture
blindboy commented Sunday, 15 Apr 2018 at 9:19am

Put a sensor on the board. Find a down the line wave and tell the surfer to build as much speed as possible. Change fins do it again. Repeat numerous times with different surfers. Analyse your data to see if Quobba fins make a difference.

Snuffy Smith's picture
Snuffy Smith's picture
Snuffy Smith commented Sunday, 15 Apr 2018 at 6:50pm

Put a senior?

Balls of fire

udo's picture
udo's picture
udo commented Saturday, 14 Apr 2018 at 3:20pm

Wish they would at least change there Vimeo speed settings to Normal

ljkarma's picture
ljkarma's picture
ljkarma commented Saturday, 14 Apr 2018 at 3:26pm

Crypto, if your sold, just go buy some, all sorted.
Also if you like products that make big claims, I have a can Quak branded striped paint you can have for $200.
BTW Quak is aboriginal for someone with a thick skull and a bit wacky. Sorta like a nutshell I guess.

CryptoKnight's picture
CryptoKnight's picture
CryptoKnight commented Saturday, 14 Apr 2018 at 3:29pm

Yes! you are right! Cranking up the speed, being a speed freak is often the key to claims (no one claims in surfing though), along with google!

http://www.buffalomusic.org/joe-public.html

Is this Joe Public the band that swellnet's Ben fronts?

blindboy's picture
blindboy's picture
blindboy commented Saturday, 14 Apr 2018 at 3:37pm

I am assuming that the graphic in the video clip is showing water speed. Could be wrong but it seems to fit with what would be expected. It would be a lot more interesting if there was a comparison to other fins.

tubeshooter's picture
tubeshooter's picture
tubeshooter commented Saturday, 14 Apr 2018 at 8:26pm

I,m gathering so far that the fins are designed with the side flange based on high speed fish such as mako sharks , tuna etc. The problem for me there is that flared bit is basically part of the fishes propulsion efforts and are forward of highly flexible tail fins. Its not seen on dorsal fins nor generally along the lateral line of the the body , or does it precede pectoral fins .
I,m 'guessing some investors might be looking to recoup some of their losses by launching the product knowing full well all they have to market is a gimmick.
As for how scientists and technicians etc keep track of the testing , measurements , results ,,, I guess the same way anyone with any credibility does.

tubeshooter's picture
tubeshooter's picture
tubeshooter commented Saturday, 14 Apr 2018 at 8:48pm

Another consideration to make regarding the flares preceding pelagic fish tail fins is that this area for the fish gets flooded with very warm red blood cells when the the fish exerts itself. The flared skin allows the blood to cool more rapidly around the tail muscles where there is less surface area to do the job.

udo's picture
udo's picture
udo commented Saturday, 14 Apr 2018 at 9:28pm

No response from anyone from Quobba yet !
John Dutton How about some feedback from you ?

uncle_leroy's picture
uncle_leroy's picture
uncle_leroy commented Saturday, 14 Apr 2018 at 11:58pm

The tail flukes on pelagic fish are there for stability purposes only, not speed creating
All their speed comes through tail propulsion and aerodynamics in pulling back pectoral fins and dorsal fins to literally become a bullet, thus tail flukes only thing keeping them upright, not speed generating

simba's picture
simba's picture
simba commented Sunday, 15 Apr 2018 at 10:15am

Crickets..........yawn ......might be relegated to the dodo section.

simba

tubeshooter's picture
tubeshooter's picture
tubeshooter commented Sunday, 15 Apr 2018 at 5:35pm

Not exactly uncle_leroy,,,, sharks don't pin their pectoral or dorsal fins in for extra speed and many of them have those flares at the tail. But they are mostly used for high speed torpedo shaped pelagics and serve multiple purposes, and straight line stability is one of them , but they are also pretty rigid and this also helps to direct the energy of the muscle contractions to the tail flukes without excessive movement of the forward part of the fishes anatomy,, ie stealth in an attack.. But unlike surfboards , what they don't have is a planing surface above those flares. Submersible and planing hydrodynamics are two totally different worlds.

southey's picture
southey's picture
southey commented Sunday, 15 Apr 2018 at 6:56pm

In no way is this an endorsement , but i believe Brute touched on this a long time ago when i first started mentioning the mini keels on slalom waterski fins . His post went onto to discuss how often water passes the fins on angle slightly shifted from the hull bottom shape . Hence the base of the fins interaction with the boards underside can create an extra lift especially when the board is being chine walked to speed . From the limited vision i've seen of this seen of these fins the flukes could add a second interaction as the lifted side maintains it even when the base of the fin is lifted from the water . Past efforts on keels even those little 3D fins of recent years is lost at the tip of the fin . Which leads them to be shorter in length as the fin itself is obviously shorter at the tip . Increasing their front to back length here would only add significantly to the wetted surface drag . I'd love to hear an impartial word from Bruce McKee , McCoy or GW on these fins .

" SA's Reserve Capacity "

udo's picture
udo's picture
udo commented Sunday, 15 Apr 2018 at 7:18pm

Bruce McKee..... McSki

southey's picture
southey's picture
southey commented Sunday, 15 Apr 2018 at 7:33pm

I believe he had a lot to do with Quad development also .

" SA's Reserve Capacity "

southey's picture
southey's picture
southey commented Sunday, 15 Apr 2018 at 7:49pm

Double Post .

" SA's Reserve Capacity "

southey's picture
southey's picture
southey commented Sunday, 15 Apr 2018 at 7:48pm

.Triple Post

" SA's Reserve Capacity "

tubeshooter's picture
tubeshooter's picture
tubeshooter commented Sunday, 15 Apr 2018 at 7:45pm

At $230 a hit they only need to sell 10870 units globally to make their $2.5m back.

udo's picture
udo's picture
udo commented Sunday, 15 Apr 2018 at 7:55pm

A Few units more to get to $2.5 mill back...there offering Free Shipping
About $10 Aust wide

tubeshooter's picture
tubeshooter's picture
tubeshooter commented Sunday, 15 Apr 2018 at 8:36pm

Mitch Thorson obviously has connections. I wouldn't be surprised if they extended to our postal services.

MidWestMonger's picture
MidWestMonger's picture
MidWestMonger commented Sunday, 15 Apr 2018 at 8:00pm

I'm developing similar fins made of a titanium manganese alloy that for $300 a set guarantee never to fall out, you will either cut granite reef to shreds or stall immediately, anyone interested?

memlasurf's picture
memlasurf's picture
memlasurf commented Sunday, 15 Apr 2018 at 9:32pm

They'd be handy in a crowd situation with a heap of mals in your way. Slice em' in half.

Spuddups's picture
Spuddups's picture
Spuddups commented Monday, 16 Apr 2018 at 5:46pm

In thirty years of surfing I've seen a lot of gimmicks come and go. Too numerous to list here. They generally promise the earth with all sorts of pseudo science and gushing testimonials from various people. In practice they deliver very little for the average Joe surfer and often involve convoluted and expensive production methods. From my experience the best breakthroughs in surfboard design have all been quite simple ideas well executed. The fin, The foam blank, The shortboard, The Thruster, The Fish etc. I'd love to be proven wrong here with this one, but I'm sceptical.

tubeshooter's picture
tubeshooter's picture
tubeshooter commented Monday, 16 Apr 2018 at 7:06pm

No testimonials so far from the elite. surely some of them don't have fin contracts??.

simba's picture
simba's picture
simba commented Monday, 16 Apr 2018 at 7:34pm

yeah bit strange,pretty much free advertising and its all quiet on the western front.

simba

udo's picture
udo's picture
udo commented Monday, 16 Apr 2018 at 7:52pm

Did the FAQ only just get put up on there site ?
Yeh no testimonials..?
Dave Delroy - Carr used them yesterday in a Tow session
Nat Hosier at Gland last year...now theres a testing ground....

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