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B-2 Spirit Stealth Bomber Completes 18.5-Hour Polar Test Mission

Under contract to the U.S. Air Force, Northrop Grumman Corporation’s  B-2 Spirit stealth bomber has completed its first 18.5-hour sortie over the North Pole to validate new flight management software. The computer upgrade system, which is the cornerstone for all future B-2 upgrades, is now ready to enter low-rate initial production.The Extremely High Frequency (EHF) Increment 1 system verification review ...

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