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ULA delays Vulcan test-firing to troubleshoot engine ignition system

May 26, 2023 Stephen Clark

United Launch Alliance called off a test-firing of the company’s first flight-rated Vulcan Centaur rocket at Cape Canaveral Thursday to troubleshoot a problem with the booster’s engine ignition system.

First Vulcan rocket rolls back to hangar for ‘adjustments’ prior to test-firing

May 16, 2023 Stephen Clark

United Launch Alliance’s first Vulcan rocket was filled with methane and liquid oxygen propellants at Cape Canaveral last week for a tanking test, but managers decided to move the rocket back inside a hangar for a few adjustments before proceeding with an engine test-firing.

United Launch Alliance nears first fueling test on Vulcan rocket

May 21, 2021 Stephen Clark

United Launch Alliance could load cryogenic methane and liquid oxygen propellants into a Vulcan rocket test article at Cape Canaveral for the first time in the coming weeks, timing key tests for the next-generation rocket in between flights of Atlas 5 rockets that will share the same launch complex for the next few years.

Photos: ULA’s Atlas 5 rocket lifts off from Cape Canaveral

May 19, 2021 Stephen Clark

Carrying a sophisticated billion-dollar missile detection satellite for the U.S. military, a United Launch Alliance Atlas 5 rocket lifted off from Cape Canaveral on Tuesday with 1.6 million pounds of thrust from a Russian RD-180 main engine and twin solid rocket boosters.

Atlas 5 rocket launches infrared missile detection satellite for U.S. Space Force

May 18, 2021 Stephen Clark

An upgraded, cyber-hardened $1 billion satellite to support the U.S. military’s missile defense systems rode into orbit from Cape Canaveral Tuesday at the tip of a United Launch Alliance Atlas 5 rocket.

Problem during fueling preps forces Atlas 5 launch delay

May 17, 2021 Stephen Clark

United Launch Alliance called off a launch attempt Monday after hitting a snag during preparations to fill an Atlas 5 rocket with cryogenic propellants at Cape Canaveral, delaying the liftoff of a new U.S. Space Force infrared surveillance satellite until no earlier than Tuesday.

Live coverage: Atlas 5 launches with missile warning satellite for U.S. military

May 17, 2021 Stephen Clark

United Launch Alliance launched the U.S. military’s SBIRS GEO 5 early warning satellite into orbit aboard an Atlas 5 rocket from Cape Canaveral Space Force Station. A launch attempt Monday was scrubbed during fueling preps due to a faulty temperature sensor. Liftoff of ULA’s workhorse rocket, fitted with two strap-on solid-fueled boosters, occurred at 1:37 p.m. EDT (1737 GMT).