Helicopters before helicopters
Auteur :
Liberatore, E.K.
Éditeur :
Liberatore, E.K.
ISBN :
9781575240534
Date de publication :
31 déc. 1998
Dimensions :
23,0 cm
Langue :
Anglais
Pays d'origine :
USA
Covering vertical-rising aircraft as envisioned from the earliest concepts to the period when the helicopter became a practical machine in the 1930s. This illustrated text focuses on the ideas and efforts that led to the creation of the modern helicopter and explores possibilities for the future.