In the summer of 1977 Paul MacCready, a California scientist and businessman, won the coveted Kremer Prize. His achievement was to design and build an airplane which completed, unaided, a one-mile figure-eight course entirely under the power provided by the pilot himself. This is the story of those many failures and MacCready's success.
ستظهر التعليقات هنا بمجرد مشاركة الأعضاء لأفكارهم.
لا توجد موسيقى بعد
إضافة موسيقى تصويرية