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Rival powers jockey for the lead in hypersonic aircraft

प्रस्तुत
 
This British company is building engines that can operate at dizzying speeds, under conditions that would melt existing jet engines. The firm wants to reach hypersonic velocity, beyond five times the speed of sound, around 4,000mph (6,400km/h) or Mach 5. (www.bbc.com) और अधिक...

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लॉगिन

क्या आपका कोई खाता नहीं है? अनुकूलित विशेषताओं, फ्लाइट अलर्टों,और अधिक के लिए अब(नि:शुल्क) रजिस्टर करें!
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