Ludomir Danilewicz (1905–1960) was a Polish engineer and, for some ten years before the outbreak of World War II, one of the four directors of the AVA Radio Company in Warsaw, Poland. AVA designed and built radio equipment for the Polish General Staff's Cipher Bureau, which was responsible for the radio communications of the General Staff's Oddział II (Section II, the General Staff's intelligence section).[1]
Ludomir Danilewicz | |
|---|---|
 | |
| Born | 1905 |
| Died | 1960 |
| Nationality | Polish |
| Occupation(s) | inventor and engineer |
Beginning in 1933, after the Cipher Bureau's mathematician-cryptologist Marian Rejewski reconstructed the German military Enigma rotor cipher machine, AVA built Enigma "doubles" as well as all the electro-mechanical equipment subsequently designed at the Cipher Bureau to expedite routine breaking and reading of Enigma ciphers.[2]
AVA's other directors were Edward Fokczyński, Antoni Palluth, and Ludomir Danilewicz's younger brother, Leonard Danilewicz. The company took its name from the combined radio callsigns of the Danilewicz brothers (TPAV) and Palluth (TPVA). When the company was being formed about 1929, the Danilewicz brothers were short-wave "hams" and students at the Warsaw Polytechnic.[3]
See also
editNotes
edit- ^ Władysław Kozaczuk, Enigma: How the German Machine Cipher Was Broken, and How It Was Read by the Allies in World War Two, 1984, p. 27.
- ^ Władysław Kozaczuk, Enigma: How the German Machine Cipher Was Broken, and How It Was Read by the Allies in World War Two, 1984, pp. 26–28 and passim.
- ^ Władysław Kozaczuk, Enigma, 1984, p. 26.
References
edit- Władysław Kozaczuk, Enigma: How the German Machine Cipher Was Broken, and How It Was Read by the Allies in World War Two, edited and translated by Christopher Kasparek, Frederick, MD, University Publications of America, 1984, ISBN 0-89093-547-5.
External links
edit- Laurence Peter, How Poles cracked Nazi Enigma secret, BBC News, 20 July 2009