Etrich Taube - Design and Development

Design and Development

The Taube was designed in 1909 by Igo Etrich of Austria-Hungary, with its first flight in 1910. It was licensed for serial production by Lohner-Werke in Austria and by Edmund Rumpler in Germany, now called the Etrich-Rumpler-Taube. Rumpler soon changed the name to Rumpler-Taube, and stopped paying royalties to Etrich, who subsequently abandoned his patent.

Despite its name, the Taube's unique wing form was not modeled after a dove, but was copied from the seeds of Zanonia macrocarpa, which float to the ground in a slow spiral caused by a single wing. Similar wing shapes were also used by Karl Jatho. Etrich had tried to build a flying wing aircraft based on the Zanonia wing shape, but the more conventional Taube type, with tail controls, was much more successful.

Etrich adopted the format of crosswind-capable main landing gear that Louis Blériot had used on his Blériot XI cross-channel monoplane for better ground handling, and gained biplane-like strength for the Taube's monoplane wing with a cable cross-braced, orthogonal-layout Brücke, or "bridge", beneath each wing panel, which often carried small wire-spoke wheels or skids at its outboard ends, for wingtip protection. Later Taube-type aircraft from other manufacturers would eventually replace the Blériot-style crosswind main gear with a simpler V-strut main gear format, and also omitted the underwing "bridge" structure for somewhat better aerodynamic efficiency.

Like many contemporary aircraft, especially monoplanes, the Taube used wing warping rather than ailerons for lateral (roll) control, and also warped the rear half of the stabilizer for use as an elevator control surface's function. Only the vertical, twinned triangular rudder surfaces were usually hinged.