Utley, Steven, and Howard Waldrop. "Custer's Last Jump"
Divergence: c 1750 CE
What if: Ben Franklin invented the internal combustion engine and the Civil War was fought with mechanized transport.
Summary: Info about the airplane Crazy Horse inherited from the Confederacy and later flew at the Little Bighorn.
Published: In Universe 6 (ed. Terry Carr), Doubleday 1976 and Popular Library 1977 (0445040343); The Best Science Fiction of the Year #6 (ed. Terry Carr), Holt, Rinehart & Winston 1977 (0030207169); Best Science Fiction Stories of the Year, Sixth Annual Collection (ed. Gardner Dozois), Dutton 1977 (0525064958), Ace 1978 (044105482X); Science Fiction A to Z: A Dictionary of the Great SF Themes (eds. Isaac Asimov, Martin H. Greenberg and Charles G. Waugh), Houghton Mifflin 1982 (039531285X); Alternative Histories: Eleven Stories of the World as It Might Have Been (eds. Charles G. Waugh and Martin H. Greenberg), q.v.; Space Dogfights (eds. Charles G. Waugh and Martin H. Greenberg), Ace 1992 (0441531679); Custer's Last Jump, Ticonderoga 1997 (0958685606); and Custer's Last Jump and Other Collaborations, Golden Gryphon 2003 (1930846134BUY).
Original in: English.
Translation: German by Werner Fuchs as "Custers letzter Absprung", in Die grosse Uhr (ed. Wolfgang Jeschke), Heyne 1977 (3453304349).
Translation: Italian by Edmondo Masuzzi as "L'ultimo lancio di Custer", in I mondi del possibile (ed. Piergiorgio Nicolazzini), q.v.