Final NSSL Mission Flies On Atlas V, Fulfilling Decade-Old RD-180 Ban

United Launch Alliance Atlas V

A United Launch Alliance  Atlas V rocket lifts off from Space Launch Complex-41 on July 30 for the United States Space Force-51 mission. 

Credit: United Launch Alliance
A decade after Congress began a series of bans on Russian rocket engines for U.S. military missions, the final national security payload to be carried aboard a United Launch Alliance (ULA) Atlas V lifted off July 30. The booster’s Russian-made RD-180 engine ignited at 6:25 a.m. EDT to begin a...
Irene Klotz

Irene Klotz is Senior Space Editor for Aviation Week, based in Cape Canaveral. Before joining Aviation Week in 2017, Irene spent 25 years as a wire service reporter covering human and robotic spaceflight, commercial space, astronomy, science and technology for Reuters and United Press International.

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