<\/span><\/h3>\nDevenus inutiles pendant la Seconde Guerre mondiale, ils vont \u00eatre d\u00e9tr\u00f4n\u00e9s \u00e0 la fin de celle-ci par l’aviation qui a connu des progr\u00e8s techniques d\u00e9cisifs pendant cette p\u00e9riode, permettant les premiers vols transatlantiques commerciaux d\u00e8s les ann\u00e9es 1950 puis ensuite l’apparition et la g\u00e9n\u00e9ralisation des avions de ligne \u00e0 r\u00e9action sur de grandes distances durant les Trente Glorieuses.<\/p>\n
On doit mentionner cependant que la marine am\u00e9ricaine, mettra en \u0153uvre comme stations radar volantes, pour la veille \u00e9loign\u00e9e de la d\u00e9fense a\u00e9rienne du territoire, de gros ballons dirigeables, notamment le ZPG-3W mis au point en 1953 (27 000 m3, 2 moteurs de 8 900 cv, vitesse de 136 km\/h).<\/p>\n","protected":false},"excerpt":{"rendered":"
L’histoire et la d\u00e9finition du ballon dirigeable Section 1 : Histoire et typologie du ballon dirigeable I) Historique du ballon dirigeable a) D\u00e9finition du ballon dirigeable Un ballon dirigeable est un a\u00e9ronef plus l\u00e9ger que l’air, \u00e9galement appel\u00e9 a\u00e9rostat, renfermant des dispositifs destin\u00e9s \u00e0 assurer la sustentation1 ainsi que des 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et la d\u00e9finition du ballon dirigeable Section 1 : Histoire et typologie du ballon dirigeable I) Historique du ballon dirigeable a) D\u00e9finition du ballon dirigeable Un ballon dirigeable est un a\u00e9ronef plus l\u00e9ger que l’air, \u00e9galement appel\u00e9 a\u00e9rostat, renfermant des dispositifs destin\u00e9s \u00e0 assurer la sustentation1 ainsi que des 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