2 Ergebnisse für: 1.818.837
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Swiss Air Force Evaluation German audio - YouTube
https://www.youtube.com/watch?v=zKNMMVK7ym4
Swiss Air Force Evaluation German audio
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Variable span wing, 1931 - YouTube
https://www.youtube.com/watch?v=Vwv5CdKh-8g&feature=player_embedded
This is a boring video, except to true aviation buffs, but it shows that there are fewer new ideas in aviation than one might think. The concept of variable-...