The Flettner Rudder

Flettner Rudder

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Recent Developments of the Ship Rudder with particular reference to "The Flettner Rudder"

Overgaard, Olav
New York, Society of Naval Architects and Marine Engineers, 1926.
11 page article from the Transactions of the Society of Naval Architects and Marine Engineers. plus a series of 8 plans and photographs.
good clean condition in a plastic sleeve.