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

Wednesday, December 24, 2014

Stem and forefoot

stem and forefoot assembled with epoxy,
the framework will be covered by a cloth tent, and the heater will speed things up

heater and tent for a faster cure

epoxy has cured,
shape of forefoot is from 3" squares shown on Lock Crowther drawing,
and transferred to cardboard cutout,
then traced around  

using the electric plane to taper the leading edge down to 5/8"

2 coats of epoxy on non-glue areas,
the stem and forefoot are now ready to be installed on the strongback

Saturday, December 20, 2014

Daggerboard Case construction


 port side interior face glassed,
note taper on inside ends to accommodate future glass overlap into the trunk

starboard side glassed inside,
fillets were spread on inside corners before laying the cloth

 daggerboard trunk halves assembled,
note long handled spatula for spreading the inside fillets on the port side

ready for glass cloth on exterior

 exterior port side and end are glassed,

flipped over and exterior starboard side glassed,
planks support the trunk and keep the wet underside from touching the table

top, keel, and rail pieces
exterior of trunk sanded ready for finish coat

finish coat rolled on 

how the support pieces install

laminated keel pieces are curved

 finished daggerboard trunk

the support pieces will be epoxied in place after the trunk is installed in the setup

Monday, December 8, 2014

Mainhull stringers, gunnels, keel

10 stringer scarfs clamped at once

epoxy has cured, clamps removed,
strips of wax paper separate the stringers


finished scarfs have been belt sanded 

stringers scarfed to full length are fed through the router with a round-over bit

rounded side will face inboard



two coats of epoxy on each stringer, gunnel, keel piece