Hyperfin from Triton equipment

[Mullins]

Kind of, but the flyer and chen bin (which is similar) don't have much angle and also don't have the blade set back from the footpockets nearly as far as the hyper style fins do. They're also heavy and have footpockets which flex... so on reflection they're a pretty long way from what I was talking about.

[OceanMan]

I am not sure that footpocket bending is pure rubber elasticity.
Indeed, the blade goes at least half way through the footpocket and I think that what we call footpocket bending is the blade bending inside the footpocket and at the bullet like shape of the footpocket.
If I am right, you would need a rather soft rubber to avoid decreasing the fiberglass properties.

[Mullins]

Originally Posted by OceanMan

I am not sure that footpocket bending is pure rubber elasticity.

It is in mine!

vlcsnap-420248.jpg

I've got photos of my Leaderfins mono doing the same thing.

[salibandy]

Woah. That's a wicked bend. Like the one Ben posted.

[Fondueset]

I had a look at a Chen Bin but none of us were able to get it on our feet. It did seem to have more angle than the waterway Nemo (12degrees) but probably less than the Hyper.

I'd think the Freeflyer would be fairly rigid - the blade goes back into those pockets nearly to the heel. May be having thicker fiberglass under the foot and extending it all the way back would be a step in the right direction.

[ADR]

Originally Posted by Mullins

Also, Max is saying above that v-bend is caused by the blade being too long and soft. This seems rather strange. The short hyperfins like mine seem to be among the worst culprits. My Leaderfins Hyper Freediving is an unusually long fin and doesn't v-bend at all. It's also soft due to its length.

I agree as I've never seen bifins/stereo fins v-bend and they have to be a great example of long and soft

[salibandy]

I believe he means too wide and soft.

[Fondueset]

Yes, what with english not being the first language a little semantic flexibility seems in order
I'll try and get my fin to bend like the picture - but frankly I don't think I have the mass/power to pull it off.

[OceanMan]

Originally Posted by Mullins

It is in mine!

Attachment 20237

I've got photos of my Leaderfins mono doing the same thing.

Apart from the very bad bending of the footpockets, I can see something that's REALLY disturbing : Dave, I don't know how to say that, but your face seems upside down !! It must be a very bad neck bending or some weird optical illusion.

[salibandy]

Oh my gosh, you're right!

[Fondueset]

Nah, he just rotated his neck 180 degrees to the rear - then arched his head back through another 180 to exploit the ramjet effect of water compressing into his nose. Its called the naso-sphynctronic-hydrodynamic-thrust-effect and is based on squid propulsion. I got a copy of the manual with my hyperfin.

[OceanMan]

The ultimate equalisation&diving technique : He's diving head down but face up.
Dave, you're going too far in diving adaptation.

[Mullins]

It's quite simple - I find that if my head begins the ascent very early in the dive while the rest of me is still in the early stages of the descent, the overall dive time is shortened. As soon as I turn at the baseplate, my body just has to catch up with my face and I'm already at the surface

[Fondueset]

Reduces the risk of SWB as well, I'll bet.

[ADR]

Daves ability to also breathe through his toes as he duck dives also shortens the overall dive time he needs as those that have met him know that he is at least 4m tall