Boeing Hyper-sonic plane

in plane •  7 years ago  (edited)

Boeing has recently released art work of a proposed hyper-sonic plane to replace the already retired SR71 Blackbird.
See the link below.

http://www.popularmechanics.com/military/aviation/a15070935/boeing-hypersonic-concept-replace-sr-71-blackbird/

plane boeing airforce military
7 years ago by

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