Utah’s ATK marks milestone in work on nation’s newest warplane

Clearfield • For a decade, Alliant Techsystems in Utah has been providing Lockheed Martin with critical components for the F-35 Lightning II Joint Strike Fighter, which is America’s newest warplane. ATK on Wednesday celebrated the completion of what it described as a significant milestone in its work on the F-35 — the completion of its 150th set of wing skins that encase the aircraft’s wings in a carbon-composite material that is lighter than aluminium and stronger than steel. “Reaching the 150...

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