China Shows Plans to Develop Starship Copy

The only thing surprising about that is that they announced it publicly.  Eric Berger at Ars Technica (that link) has been following them for years and reports on the changes to what has been called the Long March 9 since the initial concept was released about 10 years ago. The initial design concept drawings were a pretty conventional-looking rocket. It was fully expendable, with three stages and solid motors strapped onto its sides. That sounds like the US Space Launch System (or SLS).  

All that changed. Two years ago, China had re-imagined the design with a reusable first stage.

Now, based on information released at a major airshow in Zhuhai, China, the design has morphed again. And this time, the plan for the Long March 9 rocket looks almost exactly like a clone of SpaceX's Starship rocket.

Let me be clear that the Long March 9 is not a direct copy of Starship and Superheavy.  It's smaller and less powerful. 

Based on its latest specifications, the Long March 9 rocket will have a fully reusable first stage powered by 30 YF-215 engines, which are full-flow staged combustion engines fueled by methane and liquid oxygen, each with a thrust of approximately 200 tons. By way of comparison, Starship's first stage is powered by 33 Raptor engines, also fueled with methane and liquid oxygen, each with a thrust of about 280 tons.

The quick multiplication is that the Long March 9 will have 6000 tons of thrust while Starship Superheavy has 9240 tons of thrust, over 1.5 times the thrust of the Long March 9.

The new specifications also include a fully reusable configuration of the rocket, with an upper stage that looks eerily similar to Starship's second stage, complete with flaps in a similar location. According to a presentation at the airshow, China intends to fly this vehicle for the first time in 2033, nearly a decade from now.

A translated slide from a presentation on China's latest plans for the Long March 9. Credit: Weibo 

Note the Total Length of 114 meters; the Starship web site shows 121 m. On the other hand, this slide shows the diameter of the LM9 body to be 10.6m, while Starship is 9m. A direct comparison is difficult. Eric Berger adds:

In related news, last week, a quasi-private Chinese space startup, Cosmoleap, announced plans to develop a fully reusable "Leap" rocket within the next few years. An animated video that accompanied the funding announcement indicated that the company seeks to emulate the tower catch-with-chopsticks methodology that SpaceX successfully employed during Starship's fifth flight test last month.

Let's be real for a minute. These are not the first times Chinese rocket programs have emulated SpaceX, such as when Space Pioneer planned to develop a Falcon 9 clone. Both the state-run rocket agency and the company's private industries are copying the best practices of SpaceX as they seek to catch up. At this point, China's launch industry is basically hanging out in the SpaceX waiting room to see which ideas it should swipe next.

The idea that the Chinese are embedding people in American companies to return design information is practically as widespread as one could get. The big thing I notice here is that the Chinese (party) Space Agency recognizes that reusability is the key, while the NASA and the US congress still seem to want cost-plus jobs like the SLS. This excess cost, which some have noted seems to simply flow around between the space industry and the regulators, could be directed toward the kind of technological advances that might keep the US civil space program ahead of China.

A miniature model of the Long March 9.  Image credit Weibo.