Tag Archives: WGS-9

Delta IV (5,4) launches WGS-9 successfully

Delta IV pulled off another flawless launch from Cape Canaveral today, placing the Wideband Global SATCOM-9 satellite into geosynchronous transfer orbit.  WGS-9 is a military commsat operated by the United States Air Force but jointly procured by five other nations: Canada, Denmark, the Netherlands, Luxembourg, and New Zealand.  This was not the first WGS satellite paid for by a foreign power; WGS-6 was contributed by Australia.  And ground stations have been paid for partially by partner nations, who, again, receive bandwidth in proportion to their investment.  USAF is moving towards launch of WGS-10 later this year, but that is expected to be the final element of the constellation, at least int the forseeable future.

This was the 35th flight of Delta IV, and the 108th successful Delta program launch in a row.  This flew in the 5,4 configuration — 5 meter fairing, 4 solid rocket motors.  Single-core Delta IV is expected to retire by the end of 2018, with only the Delta Heavy continuing on, alongside the Vulcan rocket that will be ULA’s next offering (intended to replace both Delta IV and Atlas V).


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