Boeing's futuristic X-48C makes final flight

The aerospace giant &#097;&#110;&#100; NASA say &#116;&#104;&#101; distinctive "blended wing body" design flew &#108;&#105;&#107;&#101; &#097; champ &#105;&#110; low-speed tests &#097;&#110;&#100; holds promise &#102;&#111;&#114; quieter, &#109;&#111;&#114;&#101; fuel-efficient aircraft yet &#116;&#111; come. <a

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