Global Hawk Needs $1.9 BN in Upgrades Before U-2 Can Retire

The Northrop Grumman RQ-4 Global Hawk unmanned surveillance aircraft still needs nearly USD 2 billion in upgrades so that it can complete all the missions done by the manned Lockheed U-2, which the US Air Force (USAF) wants to retire to save money, a top service official said on 9 June. “We can only afford […]

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