Sébillot, 1902, Mémoire sur les navires aériens à air dilaté
Sébillot, who, it was seem had been known in the past for the "Système Sébillot" of aerial navigation, now begins by discussing what he considers the two most fundamental advances in aeronautics in recent years. These are improvements in metallurgy which have enabled the construction of new physical elements of aircraft (as well as automobiles and bicycles); and the development of light motors. He observes that the main fact enabling air travel is the weight of the atmosphere, and comments that submarine travel and air travel differ only in the density of the fluid medium.
He goes on to divide aircraft into two categories, the dirigible aerostat and the flying machine (l'aviateur mécanique). In the former class, Sébillot discusses the introduction of inflammable gas by Jacques-Alexandre-Cesar Charles: its merits and its large risks. Then he moves onto the alternative system, used originally by the Montgolfiers: hot air, or as he calls it, dilated air. Contrary to what some might think, he states that dilated air has been made newly possible by the progress of industry.
Then, focusing on dilated air, he presents a table with data on air temperature, air density, and ascensional force at sea level, followed by a table showing how falling pressure at higher altitudes requires the balloonist to use higher temperatures to achieve the same ascensional force, taking 300 g/m3 as standard (p. 239).
| Original title | Mémoire sur les navires aériens à air dilaté |
|---|---|
| Simple title | Memorandum on dilated-air vessels |
| Authors | A. Sébillot |
| Date | 1902 |
| Countries | FR |
| Languages | fr |
| Keywords | LTA, theory, aerodynamics, history, Jacques-Alexandre-Cesar Charles, Frères Montgolfier, hydrogen, gas, hot air, Henri Dupuy de Lôme, safety |
| Journal | L'Aéronaute |
| Related to aircraft? | 1 |
| Page count | 19 |
| Word count | |
| Wikidata id |
- same as LTA?
Sources
- Brockett 1910, page 761, entry 11024: Sébillot, A. Mémoire sur les navires aériens à air dilaté. L'Aéronaute, 35e année, No. 9 (sept. 1902), Paris, pp. 234-252. S (11024
- Scan at BNF/Gallica
