Best Yellow Split Fin?

[midwayman]

I have the aeris velocity duo split fins in yellow and love em. Stiffer than the biofins, but still moves through the water nice and easy.

 

[CrazyScuba]

I love the Atomics and the TUSA. You can read many other posts about this "hot" subject!

Good luck and Happy Diving,

Britt
CrazyScuba.com :fish:

 

[SparticleBrane]

I was not aware that the color of a fin impacted the performance...

 

[bradshsi]

I was not aware that the color of a fin impacted the performance...

In many cases the color does affect the performance to a degree. This holds true for items made from plastics or rubbers

In this case I presume the original poster wants a pair of fins that are high viz yellow. In performance change due to the color is incidental.

 

[ChrisA]

Looking for opinions based on actual experience, from those who have yellow split fins. Brands would include the usual suspects. Trying to determine which of these high-viz fins, has the stiffest blades and offers the best performance.

Depends on how to define "performance". Is it the ratio of forward speed per effort expended or is it the ability to transmit the most power from your legs to the water.
If the first you want very long flexible split fins if the later you want Jets or turtles.
Or if you want stiff split fins what about scubapro twinjest? I have used these and can say they have more power than the Tusa split fins

The fin that needs to least effort is the slowest off the line

I know you said "split" but I think Mares Volos are about the same thing

 

[pescador775]

The yellow Apollo Biofin is the highest performance that I have seen. Tiburon, you did prejudice the discussion by equating performance to stiffness. The Scubatoys guy is correct in noticing that bit of fluff. I thought your intro was uninformed and your response was defensive.

 

[bradshsi]

Dr Greer found a correlation that stiffness does play a factor in fin performance. However to say that floppier is better or that stiffer is better, is an oversimplification (at least for split fins). This is because for split fins there appears to be an optimum stiffness. The following are excepts from his report, the full version of which can be found at http://www.ndsu.nodak.edu/instruct/grier/fins-in-depth-2002.html

As you can see split fins have an optimum stiffness. Interestingly the Apollo Biofins in yellow or blue appear to be very close to optimum (with the black fins being a little too floppy and the XT fins being a little too stiff).

Interestingly, most paddle fins appear to be too stiff based on the testing (see above graph).


Disclaimer: I happen to own a pair of pretty yellow Apollo Biofins but no lemmings were harmed in the writing of this forum post

 

[SparticleBrane]

My previous post was sarcasm.
For me, a black pair of JetFins just just fine...

In fact I'll probably never have to buy another pair of fins. If I do, though, you can be assured they'll be Jets.

 

[ChillyWaters]

As you can see split fins have an optimum stiffness.

Actually, looking at the points within the split's stiffness graph, I'm not sure that can be concluded. Most of the points are between about 2.25 and 2.75, and those points seem all over the map with respect to speed!

Only 3 points lie outside that range, so the optimal stiffness seems a little misguided.

- ChillyWaters

 

[bradshsi]

Actually, looking at the points within the split's stiffness graph, I'm not sure that can be concluded.

True, it is something of an extrapolation (as Dr Greer admits in his report). The line drawn on the graph is strongly biased by the result for the Apollo XT fins (the point with a stiffness of 5 and a speed of about 2.45).

That said I think he's made the best curve fit possible with the limited amount of data. If and when he manages to test some more fins we will know with better certainty. A lot of engineering is like that. You have to make the best interpretation you can from incomplete data or data that has multiple influences. Ceteris Paribus is usually not an option