Hans Seehase

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Hans Heinrich Friedrich Seehase (born March 5, 1887 in Rostock , † September 19, 1974 in Schalksmühle ) was a German engineer and inventor .

biography

Hans Seehase was born as the son of the train station host Johann Joachim Friedrich Seehase in the Rostock Baltic Sea resort of Warnemünde . He attended elementary school in Warnemünde and then the secondary school in Rostock, which he completed in 1907 with the Abitur. After an internship at the Neptun shipyard , Hans Seehase went to sea and studied mechanical engineering at the TH Charlottenburg until 1912 and worked as an assistant at the university until 1914. In 1914 he received his doctorate with distinction on "The experimental determination of the course of the impact force and the determination of the deformation work in the compression test" and got a job as a private lecturer. During the First World War he met Joseph Sablatnig . Seehase became technical director in his aircraft company in 1916. For Sablatnig's airline, both developed various civil aircraft from 1918, such as the SAB P III airliner , which operated on the Berlin – Warnemünde – Copenhagen route. The line belonged to Sablatnig. Seehase's principles - safe, simple and dismantlable - had already been applied during the development. The wings and tail unit could be folded in, making transport by train possible without any problems. Already in 1921 Seehase developed a collapsible small car with 10 HP and a consumption of only 6.5 liters per 100 km, a little later a collapsible motorcycle.

During the period of the motor aircraft construction ban, he helped students at the TH Charlottenburg with the construction of the “ Charlotte ” glider . For his ongoing support in the construction of the successor model " Charlotte II ", he was offered honorary membership of the Academic Aviation Group .

After the bankruptcy of the Sablatnigs company in 1923, Seehase founded the company Dr. Lightweight sea hare , in which he mainly produced slide rules and drawing implements . Through this production he was able to finance further technical projects. During this time, Seehase constructed and developed a kite parachute, which he tested for the first time on April 23, 1923 on the Tempelhofer Feld in Berlin. By 1923 filed patent no. 398388 lumpfish was certainly the first dragon paragliders . The license for the replica was given to the Navy. In 1936 he undertook test flights in a muscle power aircraft he had developed , with which he undertook flights of up to 90 meters. However, he did not receive any further starting permits for places with a solid surface, since the attempts shortly before the start of the war were "militarily unimportant".

Sea hare owned 200 patents, some of which were recognized worldwide.

In 1938 Hans Seehase married the poet Charlotte Grüber (1907–1993). After the end of the Second World War , Seehase moved to Warnemünde with his family. Here he continued the manufacture of slide rules and drawing templates. In 1970 he moved to West Germany.

Honors

A plaque commemorates the sea hare on his home at Warnemünder Anastasiastraße 42 and since 2010 a street in the Rostock district of Südstadt has been named after him.

literature

Web links

Individual evidence

  1. ^ Carsten Karge: Report Historical Archive . In: Akademische Fliegergruppe (Ed.): Annual Report 2013/2014 . Berlin 2015, DNB  013347667 , p. 52-54 .
  2. ^ The Rucksackflieger Ostsee-Zeitung of October 21, 2006 about the aviation pioneer Hans Seehase
personal data
SURNAME Sea hare, Hans
ALTERNATIVE NAMES Seehase, Hans Heinrich Friedrich (full name)
BRIEF DESCRIPTION German engineer and inventor
DATE OF BIRTH March 5, 1887
PLACE OF BIRTH Rostock
DATE OF DEATH September 19, 1974
Place of death Schalksmühle