The Behm acoustic sounder for aircraft enables the barometric determination for the altitude by night or fog and therefore promises to prove of great importance in safeguarding air traffic.
Behm Acoustic Sounder for Aircraft
1926-01-01
Miscellaneous
No indication
English
Behm acoustic sounder for aircraft
Engineering Index Backfile | 1926
Engineering Index Backfile | 1922
|Alexander Behm und 100 Jahre Echolotpatente
HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2013
|Alexander Behm − Der Erfinder des Echolots?
HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2013
|Behm altimeter for airplanes and its accuracy
Engineering Index Backfile | 1930
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