FCS / S-plug Installation Template

General Discussion
1

I have one of these templates for installing plugs:

http://www.shapers.com.au/products/S%252dPlug-Installation-Template.html

Have been wondering why the notches for marking fin positions on the side fins are offset to the centre line of the plugs? Is this to accomodate for cant? 

I normally line up the template so that the rear notch is where i want the back of my fin (ie 7 inches forward 1 1/4" in from rail for example) and the front notch toed in to where i want it. Is this the right way to be doing it? or is the offset meaning my fins are closer to the rail than i designed? 

if i draw a line where i want my fin and line up the notches to that, the fin is going to be slightly closer to the rail than the line right?

2

Where you mark side fins should be were you want the edges to be, not the theoretical center of the fin. Think of a standard fin. You draw your fin lines as a guide for the flat side.

So Centr fin is center of plugs/fin tabs

Side fins is the stringer side edge of the fintabs.

It loses its theory a bit in side fins with an inside convex

 

3

ahh great, got it. that makes perfect sense.

so with a quad read with say 30/70 foil, i'd be best to line up beween the notch and centre of the boxes, so the point of the fin is on the line.

cheers