Is there a way to make functioning, preferably electric, propeller engines in the stock game, without having them be a separate craft? I know of one youtuber who built a cool fan boat, but his design required stage separating the propeller assembly and controlling it as a separate craft. I'm looking for a way to propel an amphibious base on Eve's bodies of explodium, so jet engines are out of the question, and rockets would be extremely inefficient.