Comparison of operating expenses and carrying capacity of flying boat and airship; figures for annual budget show that for same pay load each dollar spent on helium would save about $14 in fuel. (p. 55 and 214, 216, 218 and 220)
The economics of the metalclad airship
Aero Digest
Aero Digest ; 17 , n 1
1930
Article (Journal)
English
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Engineering Index Backfile | 1931
|Engineering Index Backfile | 1931
|Engineering Index Backfile | 1931
|AIAA | 1977
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Engineering Index Backfile | 1926
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