Photo: United Launch Alliance
United Launch Alliance has moved its second Vulcan Rocket from their Vertical Integration Facility at Space Launch Complex 41 to the launch mount. Final preparations can now begin for a launch scheduled for NET (not earlier than) Friday morning. Launch time is unofficially expected to be between 06:00 AM – 009:00 AM EDT, but ULA has not yet announced an official time for T-0.
Test Mission
This mission, dubbed “CERT-2” will not carry a customer payload. Originally slated to launch Sierra’s Dream Chaser on its maiden voyage to the International Space Station, ULA and Sierra agreed to remove the payload because Sierra would not have Dream Chaser flight-ready this fall. Instead, ULA will fly an inert “dummy” to simulate a payload with the goal being to further prove out the Vulcan system and also to achieve certification from the Department of Defense for Vulcan to launch national defense payloads.
This mission, dubbed “CERT-2” will not carry a customer payload. Originally slated to launch Sierra’s Dream Chaser on its maiden voyage to the International Space Station, ULA and Sierra agreed to remove the payload because Sierra would not have Dream Chaser flight-ready this fall. Instead, ULA will fly an inert “dummy” to simulate a payload with the goal being to further prove out the Vulcan system and also to achieve certification from the Department of Defense for Vulcan to launch national defense payloads.
In its first launch, Vulcan performed admirably, launching Astrobiotics Peregrine lunar lander to its target orbit, with the lander then traveling to cislunar space.
Vulcan is the first rocket designed wholly by United Launch Alliance. The Delta and Atlas family of rockets were legacy designs created by Boeing and Lockheed Martin respectively prior to the founding of the company in 2006. ULA is a joint venture between the two aerospace giants, and has successfully launched more than 157 missions since its inception.
According to the company, “This second Certification (Cert-2) launch will demonstrate Vulcan’s high-energy rocket architecture by achieving an Earth-escape trajectory and placing the Centaur V with an inert, non-deployable payload into deep space where it will orbit the sun for the rest of time. Cert-2 follows Vulcan’s successful inaugural launch on Jan. 8, 2024.”
Vulcan CERT-2 will be externally identical to the CERT-1 vehicle: along with the methane-oxygen fueled first stage powered by two Blue Origin BE-4 engines (the same engine Blue Origin will use with New Glenn) the first stage will also have two GEM solid-rocket boosters attached to give it additional lifting power. Together, the methane-fueled main engines and SRBs will provide the 2 million pounds (8.9 kilo-Newtons) of thrust generated at liftoff to power Vulcan off the launch pad.
Mark Peller, ULA’s senior vice president, Vulcan Development and Advanced Programs said in a press release that, “After the key objectives necessary for certification are completed, the mission will evaluate additional changes to the design of the upper stage and how it is operated over long coast periods to further increase its endurance.”
In other words, ULA plans to first meet the requirements of DoD certification, and afterwards, work on iterative improvements on the new vehicle.
