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Contributions to rocket research by German Professor Eugen Sänger in the 1930s
German Professor Eugen Sänger conceived of a rocket-propelled airplane in 1934. View of his sketches and notes.View of a workshop, close to his home, where Sänger developed his ideas. It is a nondescript building with wooden exterior and "Deutsche Raketenflug-Werft, Vien1934" (German Rocketflight shipyard, Vienna,1934) scrawled on its door. Professor Sänger and an assistant are seen in doorway of the workshop. Interior views of machinery. Blueprint cross-section of Sängers first Rocket motor (the S.R.1) from 1932. Drawing of test facility arrangement from 1932. Drawing of the S.R.2 rocket motor from 1933, with high pressure liquid oxygen cooling. Drawing of testing apparatus and arrangement from 1933, including Bosch fuel injection pump.
Rocket engine designs and tests by Professor Eugen Sänger, in 1934
Rocket cooling investigations influenced rocketry pioneer, Professor Eugen Sänger's design for his rocket motor, S.R.3. View of his drawings and notes from 1934. Display of mechanical parts from the S.R.3. Items comprising test apparatus for the rocket motor, with various parts labeled. Mechanical Testing setup in Sänger's work shop and instrumentation, labeled in German, showing things such as motor thrust, pump pressure, liquid oxygen level, etc. The first burn test on March 15, 1934. Sänger stands in doorway of his workshop in Vienna, using a long pole to initiate the burn. Various views of flames emanating from the prototype rocket motor during the burn test. A revised sketch of the S.R.3 prototype rocket motor. Test of this version with flames barely visible due to complete combustion, during start-up and operation.
Drawings and hardware of Professor Eugen Sänger's S.R.6 and 7 rocket motors designed in 1934.
Drawing of "L-Rocket," dated January 5, 1933. Professor Eugen Sänger's S.R.6 Rocket motor from May 23, 1934, in which the combustion chamber is the same design as the slim nozzle of the L-Rocket. Actual parts of the S.R.6 motor. Plan of Rocket motor S.R.7 from May 21, 1934, with fuel inlet cooling by coiled pipe to the nozzle jacket. Second version of S.R.7 from June 5th, with cooling in the outer shell. Drawings of Versions three and four of the S.R.7. and scenes of the actual hardware held in Sänger's hand. He unscrews part and points out the features. He points out the cooling coils around the combustion chamber. Another version is similarily displayed after he removes its outer shell.
Views of Professor Eugen Sänger's S.R.8 Rocket motor and its testing in 1934
Drawings of Professor Eugen Sänger's S.R.8 Rocket motor from July 5, 1934. The actual motor set next to a milimeter scale. Chamber of SR8 with external cooling groove before and after welding. Various views of the S.R.8. on the test stand with instrumentation in place, inside Sänger's workshop, in Vienna, July 19, 1934. Closeups of the test firing of the S.R.8 rocket motor, showing consistent smooth controlled burning.
Comparison of thrust performance of Professor Eugen Sänger's S.R.8 and 9 rocket motors. Experiments with high pressure oxygen
Drawings of Professor Eugen Sänger's S.R.9 Rocket motor from July 24, 1934. Thrust force graphs for the S.R.8 and S.R.9 obtained during burn tests. The S.R.10 rocket motor designs of August 1934, one with a circular combustion chamber and another with cylindrical chamber. Experiments using a high-pressure oxygen tanks. A technician standing near a high pressure tank, and placing a tank into a larger container. Two men pouring liquid oxygen from a tank. High pressure oxygen cylinder and fueling containers standing outside Sänger's workshop in Vienna. A technician filling a container from high pressure tank.
Professor Eugen Sänger's S.R.11 and 12 Rocket motors in 1934
Drawings and pictures of Professor Eugen Sänger's S.R.11 and 12 Rocket motors from August, 1934. He holds a motor in his hand and points out fuel inlet ports and the flame exhaust port. Views of the S.R.12 rocket motor on the test stand in Sänger's workshop in Vienna.
