Stealth and Speed: America's SR-71 Blackbird Might Be Old (But Still the World's 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.




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