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United Launch Alliance launch of a Atlas V 551 | AFSPC-11
Atlas V 551 | AFSPC-11

United Launch Alliance launch of a Atlas V 551 Rocket

Launch Status

United Launch Alliance was scheduled to launch a Atlas V 551 rocket as part of the AFSPC-11 mission. The launch window for the Government/Top Secret mission was on Sat, Apr 14th, 2018, 7:13 PM EDT from Space Launch Complex 41 Cape Canaveral, FL, USA. There was a 90% chance for favorable weather conditions. Don’t miss this exciting rocket launch! Watch the launch video of the Atlas V 551 and experience the excitement for yourself.


Space Launch Complex 41

Cape Canaveral, FL, USA


Atlas V 551

Atlas V is an expendable launch system in the Atlas rocket family. It was formerly operated by Lockheed Martin and is now operated by United Launch Alliance (ULA), a joint venture with Boeing. Each Atlas V rocket uses a Russian-built RD-180 engine burning kerosene and liquid oxygen to power its first stage and an American-built RL10 engine burning liquid hydrogen and liquid oxygen to power its Centaur upper stage. The RD-180 engines are provided by RD Amross, while Aerojet Rocketdyne provides both the RL10 engines and the strap-on boosters used in some configurations. The standard payload fairing sizes are 4 or 5 meters in diameter and of various lengths. Fairings sizes as large as 7.2 m in diameter and up to 32.3 m in length have been considered. The rocket is assembled in Decatur, Alabama and Harlingen, Texas.

United Launch Alliance

United Launch Alliance (ULA) is a joint venture of Lockheed Martin Space Systems and Boeing Defense, Space & Security. ULA was formed in December 2006 by combining the teams at these companies which provide spacecraft launch services to the government of the United States. ULA launches from both coasts of the US. They launch their Atlas V vehicle from LC-41 in Cape Canaveral and LC-3E at Vandeberg. Their Delta IV launches from LC-37 at Cape Canaveral and LC-6 at Vandenberg.