Rhön-Rossitten Gesellschaft
Encyclopedia
The Rhön-Rossitten Gesellschaft (RRG) or Rhön-Rossitten Society was a German
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 gliding
Gliding
Gliding is a recreational activity and competitive air sport in which pilots fly unpowered aircraft known as gliders or sailplanes using naturally occurring currents of rising air in the atmosphere to remain airborne. The word soaring is also used for the sport.Gliding as a sport began in the 1920s...

 organization, the first one in the world that was officially recognised. The Rhön-Rossitten Gesellschaft was mainly responsible for establishing gliding as a sport, not only in Germany but eventually throughout the world.

Because the Treaty of Versailles
Treaty of Versailles
The Treaty of Versailles was one of the peace treaties at the end of World War I. It ended the state of war between Germany and the Allied Powers. It was signed on 28 June 1919, exactly five years after the assassination of Archduke Franz Ferdinand. The other Central Powers on the German side of...

 forbade any form of powered flight in Germany, many young pilots and aircraft designers turned to gliding as a sport. Under Oskar Ursinus
Oskar Ursinus
Carl Oskar Ursinus was a pioneer of German aviation and is remembered mainly for his contributions to sailplane designs and the sport of gliding...

 and Theodore von Kármán
Theodore von Karman
Theodore von Kármán was a Hungarian-American mathematician, aerospace engineer and physicist who was active primarily in the fields of aeronautics and astronautics. He is responsible for many key advances in aerodynamics, notably his work on supersonic and hypersonic airflow characterization...

, hobbyists and serious university study groups began building gliders
Glider (sailplane)
A glider or sailplane is a type of glider aircraft used in the sport of gliding. Some gliders, known as motor gliders are used for gliding and soaring as well, but have engines which can, in some cases, be used for take-off or for extending a flight...

. The first contest was held in 1920 on the mountain of the Wasserkuppe
Wasserkuppe
The Wasserkuppe is a high plateau , the highest peak in the Rhön Mountains within the German state of Hessen. Between the first and second World Wars, during the era of the so-called Golden Age of Aviation, great advances in sailplane development were made there.Remark: The German wording takes its...

 in the Rhön region of Hesse
Hesse
Hesse or Hessia is both a cultural region of Germany and the name of an individual German state.* The cultural region of Hesse includes both the State of Hesse and the area known as Rhenish Hesse in the neighbouring Rhineland-Palatinate state...

. While many of the entering designs were no more than kites and many of the 'flights' were no more than stumbles ending in a crash, Kármán and his team from the RWTH Aachen
RWTH Aachen
RWTH Aachen University is a research university located in Aachen, North Rhine-Westphalia, Germany with roughly 33,000 students enrolled in 101 study programs....

 with their glider Schwarzer Teufel (Black Devil)
pioneered the bungee-launching method and regularly managed flights of over a minute followed by a crash-free landing. The event was then repeated annually with a constant improvement in the gliders and the results.

Simultaneously another gliding group formed at the Rossitten sand dunes at the Curonian Spit
Curonian Spit
The Curonian Spit is a 98 km long, thin, curved sand-dune spit that separates the Curonian Lagoon from the Baltic Sea coast. Its southern portion lies within Kaliningrad Oblast, Russia and its northern within southwestern Lithuania...

 in East Prussia
East Prussia
East Prussia is the main part of the region of Prussia along the southeastern Baltic Coast from the 13th century to the end of World War II in May 1945. From 1772–1829 and 1878–1945, the Province of East Prussia was part of the German state of Prussia. The capital city was Königsberg.East Prussia...

. Although far apart, the enthusiasts from the Wasserkuppe and Rossitten frequently met and compared ideas, designs and techniques. One big organization was suggested to coordinate the activities at the Rhön and the Rossitten dunes, and every other gliding club that might be founded. In 1924, 'Rhönvater' (Rhön father) Oskar Ursinus convinced the then Secretary of Air Transport for the Ministry of Transportation, Dr. Brandenburg, to found a national gliding organization, the Rhön-Rossitten Gesellschaft.

From the start, the new society did everything to provide an all-round service to gliding enthusiasts: it organized yearly gliding competitions; it managed flying schools at Rossitten and the Wasserkuppe; it had its own workshops for constructing gliders and its own research team to develop newer and better gliders. There was also a meteorological work group which investigated thermal
Thermal
A thermal column is a column of rising air in the lower altitudes of the Earth's atmosphere. Thermals are created by the uneven heating of the Earth's surface from solar radiation, and are an example of convection. The sun warms the ground, which in turn warms the air directly above it...

s and ridge-lift
Orographic lift
Orographic lift occurs when an air mass is forced from a low elevation to a higher elevation as it moves over rising terrain. As the air mass gains altitude it quickly cools down adiabatically, which can raise the relative humidity to 100% and create clouds and, under the right conditions,...

.

In 1925, Ursinus took yet another bold step by appointing Alexander Lippisch
Alexander Lippisch
Alexander Martin Lippisch was a German pioneer of aerodynamics. He made important contributions to the understanding of flying wings, delta wings and the ground effect. His most famous design is the Messerschmitt Me 163 rocket-powered interceptor.Lippisch was born in Munich, Kingdom of Bavaria...

 as head of the technical branch of the RRG. Lippisch advanced the work of RRG by designing and building ever more sophisticated gliders
Glider (sailplane)
A glider or sailplane is a type of glider aircraft used in the sport of gliding. Some gliders, known as motor gliders are used for gliding and soaring as well, but have engines which can, in some cases, be used for take-off or for extending a flight...

. Also in 1925 the ban on powered aircraft was partially lifted and soon the RRG started experimenting with motor glider
Motor glider
A motor glider is a fixed-wing aircraft that can be flown with or without engine power. The FAI Gliding Commission Sporting Code definition is: A fixed wing aerodyne equipped with a means of propulsion ,...

s. In addition to the 'traditional' way of bungee-launching gliders, the RRG also developed winch launching and aerotowing to get gliders airborne.

In 1933 with the Nazis
Nazi Germany
Nazi Germany , also known as the Third Reich , but officially called German Reich from 1933 to 1943 and Greater German Reich from 26 June 1943 onward, is the name commonly used to refer to the state of Germany from 1933 to 1945, when it was a totalitarian dictatorship ruled by...

 in power, the RRG as an independent society could no longer exist in a uniform National Socialist Germany. Therefore the RRG was broken up, and the flying club was partly absorbed by the Hitler Youth
Hitler Youth
The Hitler Youth was a paramilitary organization of the Nazi Party. It existed from 1922 to 1945. The HJ was the second oldest paramilitary Nazi group, founded one year after its adult counterpart, the Sturmabteilung...

. The design and research section was preserved under the new name of "Deutsche Forschungsanstalt für Segelflug
Deutsche Forschungsanstalt für Segelflug
The Deutsche Forschungsanstalt für Segelflug, or DFS was formed in 1933 to centralise all gliding activity in Germany...

" (DFS), the German Research Society for Gliding. In the new society, Lippisch was allowed to retain his post as chief designer. Under his leadership the DFS continued to turn out a series of successful sailplanes. Up to World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

, RRG and DFS were major forces in German aeronautical design.
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