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Stealth and Speed Americaaposs SR-71 Blackbird Might Be Old But Still the Worldaposs Fastest Plane

Stealth and Speed: America's SR-71 Blackbird Might Be Old (But Still the World's Fastest Plane)The Blackbird’s design reflected the fact that it was pushing the limits. The SR-71’s J58 engines could only start through use of two vehicle-mounted V8 starter engines, and the triethylborane used in the fuel would belch green flames during ignition. The J58s would switch to a partial ramjet mode at high speeds, such that the SR-71 actually became more fuel efficient when it went faster.


Read more: https://www.yahoo.com/news/stealth-speed-america-apos-sr-003000858.html

What Xi Jinping’s New Year’s Speech Means for America

What Xi Jinping’s New Year’s Speech Means for AmericaThe United States must accept the truth that China is now its first superpower rival since the USSR. From commemorating China’s space and military achievements in 2017, to highlighting China’s new international initiatives, Xi has set the stage for a China that is becoming ever more comfortable voicing global ambitions.


Read more: https://www.yahoo.com/news/xi-jinping-speech-means-america-235000015.html



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