The first operational C-5 was delivered to the 437th Airlift Wing, Charleston Air Force Base (now known as Joint Base Charleston, S.C.) in Jun. 1970
Taken on Jun. 30, 1969, the interesting photo in thiS article features the first U.S. Air Force (USAF) Preliminary Evaluation flight of the C-5A Galaxy conducted by the C-5A Test Force, that composed of Air Force Flight Test Center and Military Airlift Command personnel.
The first operational C-5 was delivered to the 437th Airlift Wing, Charleston Air Force Base (now known as Joint Base Charleston, S.C.) in Jun. 1970.
In Mar. 1989, the last of 50 C-5Bs was added to the 76 C-5As in the Air Force’s airlift force structure. The C-5B included all C-5A improvements as well as more than 100 additional system modifications to improve reliability and maintainability.
Based on a study showing 80 percent of the C-5 airframe service life remaining, Air Mobility Command (AMC) began an aggressive program to modernize the C-5 in 1998. The C-5 Avionics Modernization Program included upgrading the avionics to improve communications, navigation and surveillance/air traffic management compliance. The upgrade also added new safety equipment and installed a new autopilot system.
Another part of the C-5 modernization plan is a comprehensive Reliability Enhancement and Re-engining Program (RERP). The centerpiece of this program is the General Electric CF6-80C2 (F-138) commercial engine. This engine delivers a 22 percent increase in thrust, a 30 percent shorter take-off roll, has a 58 percent faster climb rate and will allow significantly more cargo to be carried over longer distances. With its new engine and other system upgrades, the RERP modified C-5A/B/Cs become C-5Ms, Super Galaxy. This modernization program will make the C-5 much quieter (FAA Stage 4 Compliant) and enhance aircraft reliability and maintainability, maintain structural and system integrity, reduce cost of ownership and increase operational capability well into the 21st century.
Photo credit: Undated Edwards History Office file photo
Artwork courtesy of AircraftProfilePrints.com
Source: U.S. Air Force