Contrary to the methods used by the Reich Air Ministry (RLM) for the allocation of aircraft designations, the designers and manufacturers of sailplanes and gliders in Germany enjoyed the freedom of choosing their own designations for their products up until 1945. 
Thus a bird name like "Habicht" could be used, or a number combined with two or more letters, stemming from the designer's or factory's name, such as DFS, RRG or Göppingen. The RLM assigned every design a separate number to provide a common basis for an exchange of drawings in the event of an intended production under license by firms, clubs or individuala and to secure the provision of spare parts. A rigid system of rules for the form and order of drawings was applied.
Whereas RLM aircraft designations were prefixed by the number 8, glider references began with "108-", for example 108-53 referred to the DFS Habicht.
In a relaxation of the regulations regarding allocation of aircraft designations, the designers and manufacturers of sailplanes and gliders in Germany enjoyed the freedom of choosing their own designations for their products up until 1945, but some of the more common aircraft were issued RLM designations in the 108 series.
Gliders with unknown or not issued RLM designator.
After the Second World War, gliding was prohibited in Germany, but when the sport began again in 1951, glider types were allocated a Geräte-Nummer (Type Approval number).
New designs were given numbers from 101, but the following older types used their RLM designation as the Geräte-Nummer:
References.
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