Testing of the first upgraded C-5M Super Galaxy transport began at the Air Force Flight Test Center at Edwards AFB, California, in mid October 2011. The aircraft (Air Force serial number 85-0002) features the new Block 3.5 software, which introduces an enhanced Identification Friend or Foe Mode S enhanced surveillance capability and thrust reverser modifications as well as hardware changes. The C-5M already had Mode S elementary surveillance capability, but needed an upgrade to continue to operate in the crowded European theater. The upgrade increases the number of downlink airborne parameters available to air traffic control facilities. The C-5M, assigned to Dover AFB, Delaware, will be at Edwards for approximately two months. The test program will include approximately 100 flying hours.
