Lu Zhou wasn't able to help too much with the space shuttle design.
Even though with his current level of engineering, he could self-learn the necessary knowledge, his energy was limited. He had to invest his time and energy into things that had the highest rate of return.
These days, in order to increase the energy density of the reactor as much as possible, Lu Zhou spent his time researching on how to improve the sound fusion machine. Most of the heat generated by the Hall-effect thruster was contained in the ionization chamber, which was then expelled from the spacecraft in the form of high-energy plasma.
Fortunately, because of Xiao Ai, the difficulty of his work decreased greatly.
As long as he had a laptop, he could control the reactor with the help of Xiao Ai's robots and verify some new interesting experiment ideas, which were dozens of kilometers away.