fin positions for quad

[Marky V]

I am have taken the fins off one of my boards with the intention of changing from a tri to a quad.
Reason?
I have never ridden a quad and there seems to be much discussion on this site regarding the differences, so want to find out for myself.
The board is an aussie style tri, 5'11" x 23" swallow,
side fins 17" up, 1 1/4 " in from rail
Toed 1/4" and cant 6 degrees.
Trailer fin at 9".
Would any of you quad guys mind taking a tape measure to your boards and giving me a starting point for the quad fin set up.
Most interested in:
distance from tail (rear of fins)
distance from rail and centre line.(rear of fins)
Toe and cant.
I have made a couple of pairs of fins, front fins 4 3/4" foiled one side
Rear fins 3 3/4" foiled both sides.
Any help would really be appreciated and will get me back in the water much quicker.
Cheers
Mark

[scoop]

Marky

My 6' Parkes has FCS setup with 2 positions for the rear inner fins
The rear forward position (what I prefer) are 34cm (13 1/2") from back of fins to straight line between swallow tails
The forward fins are 46cm (18 1/4"0and measured same as above and both pointing to the nose so not parallel
Hope this is of help

Tony

[scoop]

Sorry
forgot to add rear are 13" apart at rear and forward are 16 1/4" at rear
cheers
Tony

[Marky V]

Thanks scoop and headwax, gives me something to start with
Cheers
Mark

[skansand]

does john mel buy his fcs fins or shape them himself??? they dont say fcs on the sides.....i have the plastic ones and one of the front fins(5") has warped so the tip points farther in and probably interfering with the trailor(4")...im gonna try using just the trailors as a twin and thinking about adding a finbox on the stringer.....i could try it tri or 5 fin ....

[Beeline2.0]

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[skansand]