The Dorner monoplane was a well-known sight around Johannistahl. Georg Schendel set a German record for altitude of 2010 meters on 6 June, 1911, and a World Altitude record with passenger, of 1690 meters on 9 June, 1911, in his Dorner.
Type II had a 20 hp Dorner-Motor and cost 13,500 Marks.
Type III came with a 40 hp Dorner-Motor at 15,500 Marks, or 50 hp at 16,500 Marks.
Dorner had entered the T III with 40 hp Körting at the “Zuverlässigkeitsflug am Oberrhein” in April/May 1911, where his light monoplane still was underpowered and could not complete a single stage.
The T. III version had a fatal accident for both passenger and pilot on 9 June, 1911 at Johannistahl.
Variation:
Werntgen Wassereindecker
All Aero 