Lockheed Martin delivers last upgraded C-5

Air Mobility Command began a programme to modernize the C-5s in 1998 after a study concluded the decades-old aircraft had 80 percent of their service life remaining. Since, Lockheed Martin upgraded 52 C-5s for the USAF with new engines, avionics and diagnostics systems – upgrades which will extend the service life of the fleet out until the 2040s.

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