Saturday, 23 June 2018

20 years later, construction photos of Toroa. Better late than never?

I finally acquired a 35mm colour slide scanner.

I've enjoyed reviewing these photos. they have brought back many happy memories of my collaboration with my lifelong friend Mike Toy.

We set up two heavy timber rails, parallel, straight and true. We then crossed them with rungs at each station. Finally we set up the station forms, each transferred from our lofting board. Each form is trued to a taut string line.

The stem was wired to the forms at each end, then the sheer line batten is fixed in place.

the remaining jig battens are fitted. These battens are part of the jig not the hull so they are not connected to the stem or keel.

Jig is now fared, keel and stem are shaped ready for the first layer of plywood planking.

This close up reveals the planing that went into faring prior to planking

We chose to use a recycled 4 mm hardwood exterior plywood which we sourced from a demolished skateboard half pipe. the sheets were damaged at the edges so we cut strips across the panel to maximise the amount of planking. Traditionally double diagonal cold moulding is done with the planks laid diagonally across the jig at 45 degrees from horizontal and 90 degrees to each other. we figured that the individual plywood veneers are already at right angles to each other so vertically overlapped planks should work just as well. This turned out to be true as Toroa is as sound now as when he was built. the glue we chose is resourcinol resin glue which is water based and suited to this type of lamination provided your connections and fitting are fair and true.
Planking begins. Cling film was applied over the jig to prevent the planks from adhering to the stringers.
The planks are glued to the keel, stem and gunwale stringer only.

Tens of thousands of staples were used to temporarily hold the two layers of planks whilst the glue cured. Before a second layer of planking could be fitted the staples had to be taken out one by one and the surface faired ready for glue application and second plank stapled in place over lapping the joint seem of the first layer.

The final stem capping is fitted, glued and faired.

Shell of Toroa's hull removed from the jig and turned over to reveal the hull shape for the first time. An exciting moment for us. No one pretends that this is an easy or quick way to build a hull. This construction technique was chosen because of the materials we had to hand. Mike and I were determined to build as much of Toroa from recycled materials as we possibly could.

Decking completed

Dash boards in place.

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Toroa by Harmen Hielkema & Mike Toy.

Header Photo: Toroa at Rawene by Julie Holton.

This blog is dedicated to the memory of my father Roelof Hielkema who instilled in me the willingness to learn.
These pages are intended to inform and add to the growing body of knowledge concerning the Canoe Culture of the Pacific, past, present & future, from the Tupuna, the Ancestors of the Pacific cultures to the people of the world.

These pages contain Images and text relating to our two proas, Toroa & Takapu, some history relating to our experiments & experiences.

The dissertation that I posted on this blog in April 2008 "Takapu The Proa" was written by me in 1997 in response to an assignment that I was set whilst studying for my design degree. The dissertation covers many issues that a proa enthusiast may benefit from reading about.

Waka define culture as culture defines waka

Waka reflect the individuality and uniqueness of a society which in turn is governed by the geography, geology, topography, climate, location, resources, isolation, origin, flora, fauna, flotsam, jetsam, etc.

Waka are our link to the past, they have shaped our present and define our future.

Waka are the vessels of knowledge, physical and mental development, freedom of bondage to the land, key to our inquisitiveness, expressions of our ingenuity and courage, our love of shape and form, the seat of our power.

Waka are the source of our material culture, from which all processes are derived.

Waka are who and what we are.