André-Jacques Garnerin

From Inventing aviation
Revision as of 07:44, 4 January 2018 by LTA (talk | contribs) (Created page with "thumb|Garnerin commemorated in the 1890s '''André-Jacques Garnerin''' was a prominent balloonist and inventor. Garnerin is often credi...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
Garnerin commemorated in the 1890s

André-Jacques Garnerin was a prominent balloonist and inventor.

Garnerin is often credited with inventing the parachute, the patent for which (Patent FR-1802-185) bears the name of his wife, Jeanne-Geneviève Garnerin. In this matter he was advised by the astronomer Jérôme Lalande, who apparently came up with the idea of cutting a small hole ("le trou de Lalande") in the top of the parachute and attaching a tube for a limited stream of air to escape.[1]



References

  1. Banet-Rivet, 1898, L'Aéronautique, p. 185. "Notons qu'après sa premiere descente, au parc Monceau, le 22 octobre 1797, Garnerin, sur le conseil de Lalande, apporta au parachute un perfectionnement indispensable, qui lui donna toutes les conditions nécessaires de sécurité. Il pratiqua, à son sommet, une overture circulaire assez étroite, le trou de Lalande, surmontée d'un tuyau de 1 mètre de hauteur, qui permit à l'air qui s'accumulait dans la concavité du parachute, de s'échapper. De cette manière, sans nuire aucunement à l'effet de l'appareil, on évite les oscillations dangereuses auxquelles Garnerin n'avait échappé que par miracle dans ses premières expériences."

Links