Deep Blue Aerospace rolled a 5-meter-diameter stainless-steel common-bottom
propellant tank off its production line, the company said. The tank is a core
component of Nebula-2, a large liquid reusable rocket and currently the largest
liquid reusable launcher in China’s private sector; its delivery marks
Nebula-2’s entry into intensive engineering development. Deep Blue said the tank
improves its domestic production capability for rocket core components and lays
the groundwork for a planned year-end second-stage propulsion-system test.