The H.D. 40 has a compound structure in which metal has been used at stress points. It is powered by one BMW IV 460 H.P. engine.
The Heinkel commercial airplane, H.D. 40
01.12.1927
Sonstige
Keine Angabe
Englisch
Engineering Index Backfile | 1929
The high-speed Heinkel He 70 mail airplane
TIBKAT | 1934
|Heinkel airplane H.D. 39 for carrying newspapers
NTRS | 1926
The High-speed Heinkel He 70 Mail Airplane
NTRS | 1934
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