A Review of Some German Developments in Airplane Anti-Icing

The German Air Forces found the heated-wing system of anti-icing to be satisfactory. The empirical design basis used by Junkers is described and found to be very much different from theoretical approaches used by the research groups. The Messerschmidt electrical cycling system is presented and the results of some meteorological measurements are discussed. The theory of electrically anti-icing propellers had been examined and led to a controlling timer whose on and off cycles were responsive to ambient temperature.