Augusto Severo de Albuquerque Maranhão was a Brazilian politician, journalist, inventor and aeronaut.
ASAM Musee de l'Air, SEVERO+
Augusto Severo's Pax airship, 1902
A semi-rigid airship is an airship which has a stiff keel or truss supporting the main envelope along its length. The keel may be partially flexible or articulated and may be located inside or outside
Internal structure of semi-rigid airship
Italian explorer Umberto Nobile crossed the North Pole in his semi-rigid airship Norge in 1926.
Goodyear Zeppelin NT at Mast