Economic and safety factors are discussed in relation to a switch from hydrogen to helium in airships.
Use of helium in airships
1923-06-01
Miscellaneous
No indication
English
Engineering Index Backfile | 1921
The employment of helium in airships
Engineering Index Backfile | 1923
|Helium and its value for airships
Engineering Index Backfile | 1925
|Engineering Index Backfile | 1945
|Engineering Index Backfile | 1919
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