Worlds of IF (June 1957)
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ROCKET ROTORSHIP by Mel Hunter — Theoretical Mars ship designed ta take advantage of the thin Martian atmosphere. The ship leaves an Earth Satellite Station and arrives in the upper atmosphere of Mars with wings in swept-back position. Using its rotating bank of eight motors in forward braking position, speed is finally slowed to a mushing stall in atmosphere. Wings are moved forward till they oppose, and are angled to become effective rotor blades, whereupon ship lowers like a helicopter to a vertical landing. Return journey is just the reverse, except that whole wing and tail assembly may be left in orbit about Mars for future use, and long nose section goes home alone, on chemical rocket power. Wing and tail section are atomically powered. Long nose section serves double purpose of being lightweight return rocket, and providing shielding for crew by long distance from aft reactor. White areas (see cover) are ceramic to withstand terrific heat.
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