WALLOPS ISLAND – Orbital ATK conducted a full-power test of the upgraded first stage propulsion system of the Antares rocket using the new RD-181 main engines on May 31.
The 30-second test took place at 5:30 p.m. at NASA’s Wallops Flight Facility.
The primary goal of the test was to verify the functionality of the integrated first stage, including new engines, modified Stage 1 core, avionics, thrust vector control and pad fueling systems in an operational environment.
Wallops officials say initial indications suggest the test was fully successful. The test data will be reviewed over the next few weeks to confirm that all the test parameters were met.
“Early indications show the upgraded propulsion system, core stage and launch complex all worked together as planned,” said Mike Pinkston, Orbital ATK General Manager and Vice President, Antares Program. “Congratulations to the combined NASA, Orbital ATK and Virginia Space team on a successful test.”
The confirmation of a successful test will clear the way for Orbital ATK to resume cargo resupply services to the International Space Station from Wallops, currently scheduled for July.
Wallops says the test also met a number of operational milestones including full propellant loading sequence, launch countdown and engine ignition and shut down commands, as well as multiple throttle settings including full engine power. Additionally, the test validated the launch pad’s operation, including propellant tanking and the use of the water deluge system to protect the pad from damage and suppress noise.
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