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A fully-modernized Lockheed Martin C-5M Super Galaxy test aircraft made its first flight last week from Dobbins Air Reserve Base, Ga. This is the third of three test aircraft that are being used to test and demonstrate the modifications to the original C-5A.

According to George Shultz, vice president of the Lockheed Martin C-5 modernization program, the C-5A models have approximately 70% of their useful structural life remaining and have been validated as structurally sound for decades to come by the Air Force Fleet Viability Board. These aircraft are operated by the National Guard and Air Force Reserve.

The C-5 modernization program is being implemented in two phases — an avionics modernization program and an engine replacement program. The avionics modernization program adds a new, modern cockpit that includes a digital all-weather flight control system and autopilot, a new communications suite, flat panel displays and enhanced navigation safety equipment.

The centerpiece of the C-5 modernization program is the installation of the General Electric CF6-80C2 commercial engines on the aircraft. These engines have accumulated more than 300 million flight hours on more than 229 commercial and military aircraft, including the 747, 767 and Air Force One. This engine is said to be more fuel efficient and reliable than the legacy system and complies with international noise reduction regulations.

The C-5M will serve the military through 2040. It includes a dedicated passenger compartment that enables troops and their equipment to arrive in an area of operation simultaneously when such requirements are essential.