, Relativity Space says Terran 1 is 85 percent 3D-printed by mass, which makes it the "largest 3D printed object to exist and to attempt orbital flight." The company aims to build Terran 1 rockets that are 95 percent 3D-printed eventually.
The Terran 1 features nine Aeon engines on the rocket's first stage and an Aeon Vac engine on the second. These are all 3D-printed and will use a combination of liquid oxygen and liquid natural gas as fuel — a combnination that has never been used to reach orbit. Terran 1 has a maximum payload capacity of 2,756 pounds to low-Earth orbit.
The company says its combination of liquid oxygen and natural gas is an ideal combination for eventually carrying out its intended goal of reaching Mars. That's because it is reusable and is "the easiest to eventually transition to methane on Mars."Relativity Space, which was founded in 2015 by former Blue Origin and SpaceX employees Tim Ellis and Jordan Noone, is also working on a reusable rocket called Terran R.
The Terran R launch vehicle will be 216 feet tall and will have a much larger payload capacity of 44,100 lbs. to low Earth orbit, bringing it close to SpaceX's Falcon 9 capabilities.
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