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C4 Monofin!

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spaghetti

Campari Survivor
May 31, 2005
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Italian company C4, famous for its fine bifins, is now aggressing the market of monofins. A prototype has been recently unveiled at the "International scientific convention on apnea training".
Pics are hardly available on internet, but that thing is huge: the C4 Monofin is all made of carbon, with Mustang-Stile footpockets, side "T" shaped water rails and a big "Flap" (same as on the C4 Flap and Mustangs). It looks like two Mustangs put together.
This was just FYI
 
Thanks for posting that! Reminds me of Kirk Krack wishing he could glue his Falcon 40s together way back in 2000. Took them long enough.

It looks like it would be great in a straight line, but perhaps not as good for changing direction. I'd love to try one out, if you have any connections...

Pete
 
Interesting! I've thought about those pockets on a mono before - be interesting to try that.
 
before I got a waterway I was using a finis trainer which is basically footpockets and a rectangular shape fiberglass blade, was very functional but lacked the volume and snape of a full mono, always wondered what it would be like if someone made a high end version of that general idea, guess this is it, be cool to see how they work, price
 
Looking forward to someone giving us a review. C4's Carbon bi-fins were perfection, i wonder if the mono will be as good.. i hope so, i'll save up just incase. Can someone rich test them quick and let me know please, thanks in advance.
 
Interesting! The footpockets have a different look to them. Are they adjustable? Are carbon fins so rare, or is it this company's design that is so unique?
 
Carbon monofins are not that rare. They've been around for quite a long time for finswimming, at least ten years, I think, probably longer.

This design is unique in the fin set-up, by the looks of it, it really is similar to two bi fins fused together. I'm curious to know how the thickness goes from toe to tip and if they have done anything special with the flex characteristics a la Mat Mas or Russian fins.
 
It is Butt ugly. Of course, being sublimely macho, this is of no consequence to me.
 
Well, if Fondueset thinks it's ugly, that's it then, we just can't have it. Get it out of Our sight!
 
Reactions: spaghetti
Ah, my young padoine. You are as yet unschooled in the ways of cosmic machismo. Ugly things, in moderation of course, enhance the density of the testicles. We must have this fin!

What I think is that such a long blade will give more travel with less body movement and that the footpockets will go a ways toward cleaning up the slop with normal full pockets. It could be jolly efficient.

Spaghetti; please send one along at your earliest convenience. In return I shall reward you with a petoskey stone.
 
More travel but at a very low angle of attack at the fin tip. You get equal travel plus a better angle of attack if you have a shorter active (flexed) area placed further from the feet by a rigid spar that has very little water resistance (if you WANT more travel that is, which is debatable. Currently it's only required because material limitations have meant fin makers haven't been able to increase the blade surface laterally). In the case of this C4 fin the entire surface all the way from the toes to the tip of the blade is being flexed and only a small part of it (the trailing edge) will be at an angle sufficient to provide thrust. Not very efficient.

Sorry for the rant, just trying to put some detail around what I see as a key element of fin design... This is why I think the lunocet - a product of the opposite design approach - is such a good idea. I'll go out on a limb and say I'm reasonably sure a fin with the dimensions shown above will be rubbish
 
You are likely right - but doesn't all that depend on how stiff the blade is - and where the stiffness is concentrated? It may be they've tried to make a mono based on the same logic that governs the c4 flap fins - which would seem to be dubious.
 
Hard to imagine a company like that launching something that is both ugly and rubbish. I guess time will tell
 
Quiet boys, that's just a prototype, a starting point. The few people who tried it so far said the same things that have been said here, and mister C4 took it as a feedback for developping further steps of the project.
By the way, and this is curious, I read a debate on the forum of Apnea Academy website (Pelizzari's organization) and one of the guys commented that, being made like it is, this type of mono "would be interesting to try with a Mullins' style double stroke slippering kick" (I'm just just reporting and translating what he said)...
Fondueset: yes please. I'm sure they (petoskey stones) are delicious!
 
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It looks tatally different that all other.. Wow it give so much question Waitnig for the official presentation
 
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