Difference between revisions of "Dirigibles"
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A '''dirigible''' (or "dirigible balloon", "''Ballon dirigeable''" etc.) is an LTA aircraft which can be actively piloted. | A '''dirigible''' (or "dirigible balloon", "''Ballon dirigeable''" etc.) is an LTA aircraft which can be actively piloted. | ||
| + | Ratio of power to speed: | ||
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| + | <blockquote>[...] ''the power necessary to communicate increasing speeds to the same airship increases proportionately to the cube of the speed''. This law has been demonstrated by calculation and verified by experience. It is of vital importance, for it leads to various conclusions of the utmost moment. Thus to double the speed of a dirigible balloon, we must give it a motor power not ''twice'', but ''eight'' times greater (8 is the cube of 2; 8=2x2x2).<ref>[[Berget, 1909, Conquest of the Air]], pp. 20–21.</ref></blockquote> | ||
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| + | === Links === | ||
See ''[[w:fr:Ballon dirigeable|Ballon dirigeable]]'' on Wikipédia; also [[w:Airship]] and [[w:de:Luftschiff]]. | See ''[[w:fr:Ballon dirigeable|Ballon dirigeable]]'' on Wikipédia; also [[w:Airship]] and [[w:de:Luftschiff]]. | ||
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| + | === References === | ||
| + | <references /> | ||
{{Techtype | {{Techtype | ||
| − | |Enclosing categories=LTA | + | |Enclosing categories=LTA |
| − | |Affiliated concepts=balloon; navigation; propulsion | + | |Affiliated concepts=balloon; navigation; propulsion; aerostat |
}} | }} | ||
Revision as of 16:44, 29 June 2018
A dirigible (or "dirigible balloon", "Ballon dirigeable" etc.) is an LTA aircraft which can be actively piloted.
Ratio of power to speed:
[...] the power necessary to communicate increasing speeds to the same airship increases proportionately to the cube of the speed. This law has been demonstrated by calculation and verified by experience. It is of vital importance, for it leads to various conclusions of the utmost moment. Thus to double the speed of a dirigible balloon, we must give it a motor power not twice, but eight times greater (8 is the cube of 2; 8=2x2x2).[1]
Links
See Ballon dirigeable on Wikipédia; also w:Airship and w:de:Luftschiff.
References
- ↑ Berget, 1909, Conquest of the Air, pp. 20–21.
| Enclosing categories | LTA |
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