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The International DN is a class of iceboat.The name stands for Detroit News, where the first iceboat of this type was designed and built in the winter of 1936–1937.. Archie Arrol was a master craftsman working in the Detroit News hobby shop, and together with iceboaters Joe Lodge and Norman Jarrait designed a racing boat they called the "Blue Streak 60", later to become known as the
The DN 60 derives its name from the 1937 request of The Detroit News for a high-performance, inexpensive, home-built iceboat design. Modern DNs share many one-design features with the original boat, including the basic aerodynamic fuselage design, runner configurations and 60 square feet (5.6 m 2) of high-performance sail. [16]
Width in pixels of the created image; the corresponding height is calculated automatically. Predefined values: 1–28 seats, 280px; 29–100 seats, 300px; over 101 seats, 350px. Float If not empty (possible values are "left", "center", and "right"), will generate the diagram in a floating thumbnail, with the number of seats by party listed below.
DN class ice boat Class 3 competition land yacht Sailing employs the wind—acting on sails , wingsails or kites —to propel a craft on the surface of the water ( sailing ship , sailboat , raft , windsurfer , or kitesurfer ), on ice ( iceboat ) or on land ( land yacht ) over a chosen course , which is often part of a larger plan of navigation .
18ft Skiff in Kiel Harbor. High-performance sailing is achieved with low forward surface resistance—encountered by catamarans, sailing hydrofoils, iceboats or land sailing craft—as the sailing craft obtains motive power with its sails or aerofoils at speeds that are often faster than the wind on both upwind and downwind points of sail.
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The vehicle achieved a dead upwind speed of about 2.1 times the speed of the wind. [34] Blackbird has been analyzed a number of times since then, in research papers [37] and on the 2013 International Physics Olympiad, [38] and a working toy model was reconstructed w/ 3d-printing instructions in 2021. [39]
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