Gas balloon Zenith crash, Apr 15, 1875 (2 killed), Ciron
Gas balloon Zenith accident on April 15, 1875 near Ciron, Indre, near Le Blanc, France (ascent from the La Villette gasworks, Paris), France with 2...
- Date: April 15, 1875
- Aircraft: Gas balloon Zenith
- Location: Ciron, Indre, near Le Blanc, France (ascent from the La Villette gasworks, Paris), France
- Fatalities: 2
- Phase of flight: En route
- Cause: Hypoxia at high altitude after a rapid ascent, with an inadequate oxygen supply.
The balloon Zenith ascended from Paris on 15 April 1875 carrying Theodore Sivel, Joseph Croce Spinelli and Gaston Tissandier, and reached an estimated 8,600 metres. Sivel and Croce Spinelli died of hypoxia at altitude. Tissandier survived and the balloon landed at Ciron, Indre, about 250 km from Paris.