NASA’s schedule currently calls for the launch of Artemis III in 2027 and Artemis IV in 2028. Kshatriya said he was confident that NASA, working for the European Space Agency, and Airbus, which developed the service module, would be able to solve the valve problem for Artemis IV in time. Production of the Artemis IV service module is largely complete.
“I’m sure that if we don’t fundamentally change how the valve works, we’re going to have to at least tweak the design to prevent the leak rates that we have,” he said.
Valves are a common bugaboo in rockets and spacecraft. Almost every US human spaceflight program has dealt with malfunctioning or leaking valves. Boeing’s Starliner crew capsule developed a helium leak in its propulsion system, among other problems. Test flight to the International Space Station In 2024. Helium valves on the Space Launch System rocket had to be replaced before the Artemis I and Artemis II launches. So is SpaceX purged emissions due to valve problems. The list goes on.
“There are many options on how to solve this problem,” Kshatriya said of the Orion spacecraft problem. “If anything, I would characterize it as a manufacturing redesign risk for the Artemis IV mission that I think we might face, and that’s why we’re paying a lot of attention to it to make sure (we understand) what we’re seeing during this mission.”
A big lesson NASA learned about Artemis I was about the capsule’s heat shield. As the aircraft re-entered the atmosphere, the ablative heat barrier burned unevenly, but Orion was still able to make it safely to the target. NASA officials said they were confident the heat shield would stay on top of Artemis II after adjusting Orion’s path through the upper atmosphere. Artemis III will debut a new heat shield design.
NASA engineers Artemis I. Kshatriya spent two years investigating the heat shield problem after not expecting the valve redesign to take so long.
“It’s not flight safety, it’s not crew safety, it’s not the function that the heat shield study sent us to,” he said. “It’s going to take work to fix it, but it’s not that big of a deal.”
