Cape Canaveral, FL. Yesterday’s wet dress rehearsal of the United Launch Alliance (ULA) Vulcan rocket was a significant event in the lead-up to its inaugural launch. The Vulcan rocket was rolled out to Space Launch Complex 41 at Cape Canaveral Space Force Station on December 6, 2023, in preparation for this extensive practice countdown.
The wet dress rehearsal is an integral part of the final processing activities ahead of the Vulcan rocket’s historic inaugural test flight, which is scheduled for 1:49 a.m. EST on Christmas Eve. This rehearsal is crucial for ensuring that all systems and procedures are fully operational and ready for the actual launch. During this rehearsal, the Vulcan rocket was loaded with methane and oxygen propellant, simulating the conditions it will experience during the actual launch. The practice countdown was executed, culminating just before engine ignition. ULA also planned to conduct a flight readiness firing test, which would include igniting the two BE-4 engines to 70% of their thrust capacity for about 3.5 seconds.
These activities are vital for confirming the rocket’s readiness and the team’s preparedness for the launch. Additionally, backup launch attempts are available on Christmas and December 26, should any delays arise.
This wet dress rehearsal is a key milestone for the Vulcan rocket, marking a crucial step towards its first flight and demonstrating ULA’s commitment to ensuring a successful and safe launch.
