The Air Force still hasn’t identified the root cause of why an upper stage engine on a Delta IV rocket failed during an October Global Positioning System (GPS) IIF-3 satellite launch. “The latest is we still don’t have root cause,” Air Force Space Command (AFSPC) chief Gen. William Shelton said yesterday during an Air Force Association breakfast in Arlington, Va. This could lead to further launch delays as the Air Force said in a Oct. 11 release the “launch manifest…
Air Force Still Investigating Engine Failure On GPS IIF-3 Launch, Shelton Says
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