4 , ▁ 1 8 8 7 , ▁Prag ue ▁– ▁December ▁ 1 2 , ▁ 1 9 7 4 , ▁Bry an , ▁Ohio ) ▁was ▁one ▁of ▁the ▁most ▁important ▁ 2 0 th ▁century ▁air ship ▁engine ers ▁and ▁design ers ▁in ▁Germany ▁and ▁the ▁United ▁States ▁of ▁America . ▁He ▁was ▁born ▁in ▁Prag ue , ▁Boh emia ▁( now ▁the ▁Czech ▁Republic ) ▁to ▁Jewish ▁parents . ▁He ▁developed ▁stress ▁analysis ▁methods ▁that ▁have ▁been ▁incorpor ated ▁into ▁brid ges , ▁air ships ▁and ▁air plane ▁materials . ▁Before ▁his ▁invol vement ▁in ▁air ships ▁he ▁was ▁one ▁of ▁the ▁main ▁engine ers ▁in ▁building ▁the ▁Swiss ▁Lang w ies er ▁Vi ad uct . ▁Arn stein ▁was ▁the ▁chief ▁designer ▁of ▁the ▁U . S . ▁Navy ▁air ships , ▁USS ▁Ak ron ▁and ▁USS ▁Ma con ▁and ▁was ▁employed ▁by ▁the ▁Go ody ear - Ze ppel in ▁Corporation ▁in ▁Ak ron ▁Ohio . ▁ ▁References ▁ ▁External ▁links ▁▁ ▁F inding ▁aid ▁for ▁the ▁Karl ▁Arn stein ▁Pap ers ▁ ▁D ale ▁To pping , ▁Eric ▁Brothers , ▁When ▁Gi ants ▁Ro amed ▁the ▁Sky ▁- ▁Karl ▁Arn stein ▁and ▁the ▁R ise ▁of ▁Air ships ▁from ▁Ze ppel in ▁to ▁Go ody ear ▁University ▁of ▁Ak ron ▁Press , ▁ 2 0 0 0 ▁ ▁Category : 1 8 8 7 ▁birth s ▁Category : 1 9 7 4 ▁death s ▁Category : 2 0 th - century ▁Czech ▁people ▁Category : C