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Old 7th February 2008, 04:55 AM   #2
Dream Team - School Guru
Join Date: Aug 2006
Posts: 2,177

Hi again Roly,
OK, some things you need to ponder when selecting a fin.
First, fin size is not just about sail size.
Sailor weight and size can figure into the overall geometry.
Tail width of the board is another factor.
I would think that you could fairly easily use a 40 cm fin with
your 6.5 m2 rig.
For the 7.8 m2 rig the stock 52 might be better, and I'm pretty sure you
will find that you have to develop some pretty blazing speed before the
little 40 cm "feels" as solid as the 52 cm vertical fin.
Also, how "powered up" you are is going to make some difference also.
If you are really "powered up to overpowered, you can use a smaller fin.
If you are only reaching back and forth across the true wind, a smaller fin
can work.
If you have to get upwind alot (or stay upwind) then you'll want a larger
So, lots of factors here, and you really need to go out and try all your fins with
all your different size rigs.
If you are "easy" with your back foot on the 40 cm, it could work with your 7.8 m
Conversely if you are a "fin pusher" or a big heavy guy (these two seem to go hand in hand) then you may find that the stock 52 cm fin works better with your 3 larger rigs and you only need the 40 cm for the 5.0 in nukin' conditions.
Hope this helps,

Last edited by Roger; 7th February 2008 at 09:43 PM.
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