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So I may have asked this before, but I was wondering-are steam-powered aircraft possible? If so, would they be feasible/practical? How would they differ from similarly-designed aircraft with internal combustion engines (in appearance and performance)? Would they be cheaper to make than oil-powered planes, or more expensive? Also, would a steam turbine-powered aircraft be possible as well? How would such aircraft compare to aircraft from OTL and/or aircraft powered by reciprocating steam engines?
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