
The Air Force is pushing back the launches of two Lockheed Martin [LMT]-built satellites that were supposed to lift off this fall.Each spacecraft – the fourth Advanced Extremely High Frequency (AEHF-4) protected-communications satellite and the fourth Space Based Infrared System (SBIRS) geosynchronous Earth orbit (GEO Flight-4) missile-warning satellite – is slated to ride on a United Launch Alliance (ULA) Atlas 5 rocket from Cape Canaveral Air Force Station in Florida. ULA is a joint venture of Boeing [BA] and Lockheed Martin.The…