1789 experimental aerospace flying space craft. old found 1789 footage, experimental spacecraft, example document evidence of old world space travel in metal-work technology prototype deep-space space craft, vintage photograph, document papers. observable Earth. inefficient ion engine propulsion system. heavy thick plum exhaust. spruce goose-like size, Caspian Sea Monster Ekranoplan inspired styling above the moon, landing on the moon surface black and white photograph that has been edited and manually colorized after printing