07 August 2014 0 comments
John Dalziel gives a summary of his series of experiments on his proa C. L. Brock with a Bolger-type rig. Note: Frequent references are made to Philip C. Bolger’s proa "cartoon", which first appeared in an issue of the late Small Boat Journal, and was later published in Boats with an Open Mind; International Marine, 1994.
The Bolger proa rig echos the unique symmetry of the proa: the airflow reverses direction during a shunt, just…
06 August 2014 1 comments
A report on the 2014 Proa Raid in Poland
We are a group of friends sailing proas from Poland and Germany. Every year we meet to share our experience and to raid together to gain some more experience. Last year we were sailing on the Baltic Sea. We had the same idea this year, after the Proa Conference at Jamno Lake in Poland. But we had to change our plans. The channel between the lake and sea was closed, what we had discovered in the…
23 July 2014 3 comments
An overview of the potentials and problems of the remarkable rig of the native Pacific proa.
The Traditional Oceanic sprit rig (aka crab claw) has, in Western eyes, been considered a romantic if not particularly effective rig that most likely compared to the Mediterranean lateen in aerodynamic performance. That is, until famed sailboat aerodynamics researcher C. A. Marchaj published this startling graph in his research paper Planform…
18 July 2014 1 comments
The proa has unique requirements for a sailboat rig, the main one being that it is reversible fore and aft. Since no Western craft have this ability, we who are developing the proa for use here in the West are truly in uncharted waters.
The obvious place to look for inspiration is with the traditional proa rig: the Oceanic sprit, developed over thousands of years of ocean voyaging by the Pacific Islanders. This rig, often called the…
08 July 2014 0 comments
The illustrated glossary of bilaterally asymmetrical sailboats.
aerohydrofoil Sailboat concept pioneered by Bernard Smith in the 1960’s and described in his seminal work The 40-Knot Sailboat. Smith’s analysis of sailboat kinetics led him to a groundbreaking design involving no traditional sail or hull, instead utilizing solid airfoils and buoyant hydrofoils, arranged in a proa-like formation. Many of today’s proa advocates credit the…
24 April 2014 0 comments
Yann Quenet has come up with a design for an 18’ sailing outrigger with some features we really like for a minimal multihull pocket cruiser.
Bit&Kontell 5.50: “Not really a cat or a tri or a proa, cruise freely combining storage volumes and light, and space for a kayak or various boards.”
He’s put the outrigger ama to good use, with the daggerboard and mizzen mounted there, as well as providing a big hatch and enough volume to carry…
18 April 2014 0 comments
Russell Brown at Port Townsend Watercraft is now offering posters of CHEERS to benefit the Newick family. It is a painting by Bruce Alderson depicting the proa in action, racing singlehanded across the North Atlantic in 1968. This is my favorite image of the most famous modern proa in history. The posters belonged to the late Richard C. Newick, and are in limited supply. Find out more here.
24 December 2013 0 comments
Quick on the heels of the proa Madness, John Harris of Chesapeake Light Craft has announced the new Outrigger Junior as the latest member of the CLC stable. A 15’ plywood stitch-n-glue sailing outrigger, OJ is car-top-able, beach-able, tack-able, build-able and afford-able, so maybe not so crazy after all. Special thanks to Proafile reader Brian P. for the submission!
Inspired by Warren Seamen’s Malibu Outrigger, this boat is truly a…
23 December 2013 0 comments
Paul Bieker has announced that study plans are now available for the 32’ Jester class proa - a collaboration between himself and Russell Brown. This design has already got the interest meter pegged in the forums and this will only turn it up to eleven.
25 November 2013 0 comments
This intriguing Pacific proa is from the board of French naval architect Julien Marin. LIttle is known about the design except it is 50’ long and the cassette rudders sit in rotating cylinders, permitting an adjustable draft while maintaining rudder control.