Professor Czesław A. Marchaj (born in Słomniki, Poland, on July 9, 1918) is a Polish Yachtsman whose published scientific study of the aerodynamics and hydrodynamics of sailing boats has been hugely influential on yacht, sail and rig designers since the publication of his classic work "Sailing Theory & Practice" in the mid 1960s.

Sail Performance: Theory and Practice: C.A. Marchaj: Amazon.co.uk: Books ... This item is not eligible for Amazon Prime, but millions of other items are.

Amazon.com: Aero-Hydrodynami cs of Sailing: Czeslaw A. Marchaj: Books ... Product Description The international classic work of reference for anyone wishing to understand the ...

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T hese lines were provided by Bill Beaver through the North American Canoesletter.

Aerohydrodynamic s of Sailing: C.A. Marchaj: Amazon.co.uk: Books ... This item is not eligible for Amazon Prime, but millions of other items are.

Marchaj shows that an elliptic sail is about 30% superior to the Bermudan sail. This can get you hoping that the Juganda sail will be more than 30% superior to that of the Bermudan

A good teacher will always make sure that the challenges are presented." play video

... original webcast produced at Zen Mountain Monastery, consisting of talks by the teachers: Abbot John Daido Loori, Roshi; Geoffrey Shugen Arnold, Sensei and Konrad Ryushin Marchaj ...