A Colorado company is fabricating powerful engines with names like Hadley and Ripley. Here's why.
Like Laurienti, Relativity founder Tim Ellis noticed a reluctance to fully embrace 3D printing tech at traditional space companies. At Blue Origin, his former employer, Ellis was the first person to do metal 3D printing; he was an intern desperate to finish creating a turbo pump assembly before his apprenticeship was over. Later, as a full employee, Ellis would go on to start and lead a metal 3D printing division at the company.
But then an early customer—whose name Laurienti did not share—approached the company about a different application: hypersonics. These vehicles are designed to fly within Earth’s atmosphere at. Usually, when people discuss hypersonics, they’re talking about fast-moving, maneuverable weapons. Just like rubbing your hand on fabric warms both up, rubbing a hypersonic vehicle against the air raises the temperature of both. “The atmosphere around you is glowing red, trying to eat your vehicle,” says Laurienti. That heat, which creates a plasma around the craft, also makes it hard to send communications signals through. Sustaining high speeds and a working machine in that harsh environment remains a challenge.
To intercept these fast-moving weapons, a country might need its own hypersonics, so there’s a defensive element and an offensive one. That’s partly why the Department of Defense has investedin hypersonics research, in addition to its desire to keep up with other countries’ technological abilities. That, of course, often makes other countries want to keep pace or get ahead, which can lead to everyone investing more money in the research.
Today, in general, the development of missile technology has been decoupled from space-launch technology, as the rockets intended for orbit have been built specifically for that purpose. But it’s important not to forget where they came from. “They still all descend from the V-2 and from these military rockets,” says Rand. “And also most of them still launch DOD payloads.”
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