Northrop To Test New Solid Rocket Booster Nozzle | Aviation Week Network

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Irene Klotz
March 31, 2026

United Launch Alliance webcast

Credit: United Launch Alliance webcast

CAPE CANAVERAL—Northrop Grumman plans to test a new nozzle for the Graphite Epoxy Motors (GEM) used on United Launch Alliance’s (ULA) Vulcan and Atlas rockets, a redesign that could be part of Vulcan’s return to flight following a malfunction of one of four GEM solid rocket boosters in February….

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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