Block II
WGS-4, the first of the Block II, was launched by United Launch Alliance from SLC-37B at the Cape Canaveral Air Force Station by a Delta IV Medium+ (5,4) on January 20, 2012, 00:38 AM GMT.
WGS-5 was successfully launched by a Delta IV rocket flying in the Medium+(5,4) configuration, with lift-off taking place from SLC-37B in Florida at 20:27 local time on May 24, 2013.
In May, 2013, Boeing reported the WGS-6 satellite had been shipped to Florida in preparation for a scheduled launch later in 2013.
These satellites represent the Block II WGS satellites.
On Aug. 23, 2010, Boeing was awarded an Air Force contract worth $182 million to begin work on the seventh WGS satellite. The new spacecraft is being procured under the WGS Block II follow-on contract. The contract will ultimately include options for production of up to six WGS satellites.
Read more about this topic: Wideband Global SATCOM System
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