@ post #2, yes its indeed a step, but a very small step, China needs at least 500 tons thrust Semi-Cryogenic rocket engine for that kind of project, yanks got 679 tons thrust f-1 for their 40 years ago manned moon mission and for your information, after 40 years, China is currently DEVELOPING yf-100, which its a 122 tons thrust Semi-Cryogenic rocket engine
very clear here, just not in the same league.
very clear here, just not in the same league.