A new configuration of the Delta IV rocket has launched on its maiden flight. The new Medium+ (5,4) variant was used to orbit the Wideband Global SATCOM 3 (WGS-3) satellite for the US Air Force. Weather and a technical issue with the Ground Launch Control system put pay to the opening attempt two days ago – as the United Launch Alliance (ULA) finally launched the vehicle at the end of the window at 01:47 GMT.
