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DIR: Discuss ScubaPro Fins - Pro Fin vs Jet Fin in the Technical and Specialist Diving Forums forums: Have you had a look at Northen Diver Jet Fins they have stock of XL. Blade is slightly smaller but ...

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  #11 (permalink)  
Old 29-11-04, 09:49 AM
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Quote:
Originally Posted by gunsentry
Have you had a look at Northen Diver Jet Fins they have stock of XL.

Blade is slightly smaller but they are cheaper....£39.00.

I have these with Agir-Brokk springs, very nice.

http://www.diveshop.co.uk/pages/accessories/fins.html
Anyone here can compare the Mares Quattro with the ND XXL ?
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  #12 (permalink)  
Old 29-11-04, 10:10 AM
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Mares Quattro... lightweight, flippery thing vs Jetfin... big, fat, heavy rubber thingie.

I prefer Jetfins for many reasons, I don't like lightweight fins for drysuit diving. Depends what you want/like.

I'll see if I can dig it out, there is a study by an American university's sports science department where they tested 20-odd different fins by looking at how much energy a diver used (i.e how much O2 they consumed) for a given speed. They found that all the fins tested performed exactly the same, despite different designs, vents, channels, etc., and that the differences were subjective, simply down to diver perception of how they felt. Think about that the next time you see a shiney pair of £100 fins in your dive shop!!!
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Old 29-11-04, 11:29 AM
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interesting
Stuart,

That would definately be interesting to see. Can you post a link?

Cheers, Graham
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  #14 (permalink)  
Old 29-11-04, 01:52 PM
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IIRC it was done by NY State University in Buffalo, I had a PDF of it somewhere. I'll dig about for it.
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Old 29-11-04, 07:14 PM
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Quote:
Originally Posted by Fraser
Hi Andy,

Have you got access to a pair of Jets for comparison? The blades seem a little small to me but it's difficult to tell from the pic. Main thing is blade size/stiffness and I've tried a few different types including ND and Turtles. They are not as stiff as the SPro Jets.

I'm sure they'll do for a while though...

Fraser.
Fraser,

I haven't got a pair of Jets handy. I must admit I thought the blades looked a bit small. I will just have to try them in the water and see what they feel like.

Thanks

Andy
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Old 30-11-04, 08:24 AM
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Quote:
I will just have to try them in the water and see what they feel like.
Hi Andy,

Can you make it to the gig at Stoney this weekend? I'm sure there'll be plenty of Jets knocking around for you to make the comparison

Fraser.
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