stringer 6 installed with daggerboard case brace frame

stringer 6 installed

daggerboard case brace frame fitted to stringer 6

brace frame viewed from aft

cutting stringer notches

5/8" spade drill bit used to drill out bottom curve of notches,

carefully aligned with stringer direction,

usually not at right angles to frames 

saber saw used to make upper and lower cuts to complete notches,

usually not at right angles to frames so the saw has to be held freehand and steady

custom notch sander made from sandpaper wrapped over stringer stock,

each notch was sanded to the correct depth, 

and for a loose fit on the sides leaving room for epoxy filler

notches complete on the starboard side 

 a stringer was temporarily fitted dry to each row of notches,

to confirm that notch depths and overall fit was good

Main hull stringer notches marked, ready for cutting

200 notches to be cut !

Main hull stringer layout - string lines

 using string lines to check the fairness of stringer alignment,

in preparation for notching

 first divided by tape measurement and pencil between the keel and waterline +3"

as per plan notation

 then put a small screw at each stringer/frame crossing pencil mark,

then ran a string line for each stringer between the screws

by eyeballing the string lines, small corrections needed to fair the alignment could be easily made,

and the symmetry of taper of several stringer alignments checked  simultaneously

Daggerboard case support struts

- struts between daggerboard case and gunnels add support

Gunnel breasthook

 - reinforcing breasthook on gunnels at stem

- gunnels had to be cut down the middle and glued back together to accomodate heavy curvature near the bow