The photo above is a Twiggy Mk1 from France

This presentation documents the construction of a modified version of Lock Crowther's famous Twiggy Mk 2 trimaran

Tuesday, March 27, 2018

Rudder Blade

Rudder Blade
 clear cedar boards, 1-11/16" x 2-3/4" x 54"
epoxy glued with alternating cross grain
 before assembly, each board was tapered from waterline to tip,
every board has different taper based on the plan tapered foil section,
when assembled they form the approximate foil section shape,
this reduces the amount of material to be removed by planing 
 end view from aft
 aft perspective
 fully assembled
 assembled and the perimeter is trimmed
 aft view, ready for planing and sanding
forward view ready for planing

Monday, March 26, 2018

Daggerboard

Daggerboard construction


clear cedar boards 1.5" x 3.125" x 8ft
epoxied together with alternating cross grain
- note that before gluing the portions below the keel near 
the leading and trailing edges have been cut down close 
to the final foil thickness for each board, 
to minimize planing to the final shape