One small spacecraft secretly shuttles supplies from one earthlike planet to another,?
completing 8 round trips without replenishing its chemical rocket fuel. You inform the writer that the spacecraft will barely be able to leave a planet even once using chemical rockets, unless that spacecraft is allowed to eject stages. Why are you right?
Eight round trips on one tank of gas (chemical rocket fuel)??
That would require a huge initial supply of fuel (mass) that would have to accelerated again and again. I doubt that any chemical rocket engine could produce anywhere near the thrust required.
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