To be accurate, the giant propeller was not pushing the mother nest towards the sun in a straight line.
First, the front of the propeller was equipped with a super growth field generator that reacted with the mother nest at the cellular level. It hardened the cell wall so to speak so that the propeller would not simply shoot through the nest. The propeller, although big in size, was as small as a needle when compared to the overall size of the mother nest. It would pierce through the nest if not for this technology.
Due to its mass, the propeller was unable to push the mother nest in a straight line towards the sun. The plan was to utilize Moon 2’s gravitational force to add to the acceleration. The aim was to circle around Moon 2 to harvest centrifugal force that could add to the propulsion.
