General discussion of specific engineering features of freight transportation by airplane as distinguished from passenger transportation; tonnage statistics of freight, passengers and mail transported by airplanes in Germany during April to September months of 1925, 1926 and 1927, showing continued progress.
Freight airplanes
Frachtflugzeuge
Luftfahrt ; 31 , n 24
1927
2 pages
1 Fig.
Aufsatz (Zeitschrift)
Deutsch
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