Alvin H. Parker took off from his hometown, Odessa, Texas, at the controls of the National Air and Space Museum's Sisu 1A and flew 1,042 km (647 miles) on July 31, 1964. This flight also shattered a symbolic and psychological barrier that had defeated sailplane pilots around the world for years. Joseph Lincoln called the 1,000-km milestone "for a good many years …the soaring pilot's four-minute mile on both sides of the Atlantic" in his soaring anthology, "On Quiet Wings," published in 1972.
мубодилот намудан – копӣ, паҳн ва фиристадани асар
ремикс кардан – татбиқи кор
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{{Information |Description=Alvin H. Parker took off from his hometown, Odessa, Texas, at the controls of the National Air and Space Museum's Sisu 1A and flew 1,042 km (647 miles) on July 31, 1964. This flight also shattered a symbolic and psychological ba