[MHml] About sheer beauty: 6m proa with Flettner rotor

[Dave Culp]

And in (Google-derived) English:

Ten times better than a conventional cloth gel

The boat is 6.10 meters long and 4.50 meters wide. Actually no unusual mass,
particularly since if it concerns a construction with two trunks. But both
the ship type, the Proa, and the drive, the Flettner rotor, are also
separately rare for itself regarded into domestic Gefilden most. The unique
construction, which was developed under the direction of Professor Dr. Lutz
Fiesser at the University of Flensburg, is baptized on Sunday, 20 August, in
the context of the Flensburg Nautics and introduced to the public.

The ship baptism takes place at 15 o'clock at the Schiffbrücke Flensburg, on
the height of the I. - C. - Möller place. Will be present among other
things: Professor Dr. Lutz Fiesser, rector Professor Dr. Heiner Dunckel as
well as a representative of the Flensburger savings bank; geldinstitut
supported the project from the outset.

Even if or other Segler on the Flensburger Förde still sceptically the
forehead run tent - it drives. A cylinder, propelled of an electric motor,
turns, diverts the wind and the Proa moves forward. "The Flettner rotor
makes strictly speaking nothing else as a conventional sail. But its
efficiency is much better, approximately around the factor ten ", explains
Professor Dr. Lutz Fiesser of Institut for physics and chemistry and their
didactics. Which the rotor needs, is river. Highly effective solar cells,
which are attached on the Proa, supply it. Electrical Aussenborder is
reserved on and placing maneuvers.

Before 15 years Professor Dr. Fiesser began to be occupied with this drive.
Ole Hillenbrand and Jürgen climb, students of the University of Flensburg,
were considerably involved in the conversion of the idea beside boat farmer
Robert Schmidbauer. The Proa, a ship type of the South Seas, is suitable
outstanding for this drive, since the tail can become the nose - ideally for
this drive system.

Into the 1920er years was the rotor on two ships use, conceived by Anton
Flettner, but could not it not when drive to intersperse; the Diesel engine
had the nose in front. Opposite conventional sails the cylinder, so
Professor Dr. Fiesser, has clear advantages: It must not be gerefft, if
strong wind arises. Only one humans, who change the peripheral speed of the
rotor, are sufficient. And then there still the efficiency, stop ten times
is better than a conventional sail.

Contact:

Prof. Dr. Lutz Fiesser, Institut für Physik und Chemie und ihre Didaktik,
Universität Flensburg, Tel.: 0461 – 805 2303, E-Mail:
fiesser at uni-flensburg.de

Dr. Helge Möller, Presse- und Öffentlichkeitsarbeit, Universität Flensburg,
Tel.: 0461 – 14 44 916, E-Mail: presse at uni-flensburg.de

Dave Culp

On 8/31/06, Claus C Plaass <plaass at foni.net> wrote:
>
> Adding to the recent discussion here on
> "what causes the feeling of *a beauty* in a boat lover:
> Scientists at the University of Flensburg, Northest town of Germany,
> have developped, built and test sailed a 6,20m / 20` proa
> driven by a solar-battery-electric driven Flettner rotor assy.
> Here`s the link http://www.uni-flensburg.de/presse/
>
> and here`s the web text plus foto - a pdf is downloadable.
>
> ++++++++++++++
> Zehn Mal besser als ein herkömmliches Tuchsegel
> (Ten times more efficient than a cloth sail, Chris ...)
>
> Das Boot ist 6,10 Meter lang und 4,50 Meter breit. An sich keine
> ungewöhnlichen Maße, zumal wenn es sich um eine Konstruktion mit zwei
> Rümpfen handelt. Doch sowohl der Schiffstyp, die Proa, als auch der
> Antrieb,
> der Flettner-Rotor, sind auch separat für sich betrachtet in heimische
> Gefilden höchst selten. Die einmalige Konstruktion, die unter der Leitung
> von Prof. Dr. Lutz Fiesser an der Universität Flensburg entwickelt wurde,
> wird am Sonntag, 20. August, im Rahmen der Flensburg Nautics getauft und
> der
> Öffentlichkeit vorgestellt
> +++++++++++++++
>
> I`ll have a test sail on Oct 1st, before she will be exhibited
> during the party for the Day of German Unity (Oct 3rd)
>
> maybe as an example for beauty AND functionality ...
> (from the viewpoint of scientists, not sailors)
>
>
> Chris
> Kiel, Germany
>
>
>
>
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