F-35's 11-year flight test phase comes to an end

stlbeacon.org - 4/13/2018

A Lockheed Martin F-35C on 11 April completed the final test flight of the programme’s system development and demonstration (SDD) phase, capping off an 11-year-long saga spanning 9,200 sorties and 17,000 flight hours for three major variants.

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