Boat in a Box

This project is inspired by the life and work of Sven Yrvind, legendary sailor, boat designer and builder.

One incident in particular literally shaped this boat. Sven was interviewed in Madeira. He had to turn back from a single handed attempt to sail to New Zealand, round Cape Horn.

The boat he built was good, made with the best materials, but he realised it was not good enough to risk the worst conditions there are. Sven was very despondent, usually he is very positive. He did not have enough money to ship the boat back to Sweden, nor to scrap it, craneage, transport and disposal cost.

As good starting point, I thought, was to design everything to fit into a standard 20 ft. shipping container, the red box represents the internal dimensions.

The drawings are 3D CAD turned into illustrations, life size and show the core of the structure. No plugs, moulds, wastage and minimum sanding. All surfaces to be covered in high strength organic composites. The very minimum use of hydro-carbon based materials is the major target.

There are printers, at present, big enough to produce this design, so this is not sci-fi, nor photoshop fantasy.

This is not a racing boat.

As with the 1 metre pond yacht, the aero profile is Eppler 347. It is used for the hull sails, masts, keels and modified for the superstructure.

There are two small sails, so one person can manage the power and handle the reduction of area (reefing).

Aerodynamics are as important as hydrodynamics, so there are no drag inducing handrails, standing or running rigging nor lines. All controls for sail management and steering are internal.

The yellow ovals are hatches and are pneumatically sealed.

Here is the boat leaning at 38.7 degrees, there is no change to the under-water shape, so there will be no change in handling characteristics.

It is designed to exist in the water like a fish, not fight the element, but carefully divert the water with minimum disturbance. It should go through the waves not climb over them. Sealed against leakage rather than trying to cope with the after effects of deluge and soaking clothing and bedding.

Dried out on a sandy beach, waiting on the tide. The figure is included to give scale to what is really quite a small boat. There is enough clearance under the hull to land on a beach of small rocks.

The keels act as a jig, in construction, to align the 1 metre sections for bonding

The tail is the full extent of the Eppler 347 to complete the flow around the hull with as little disturbance as possible.