1946–1978 Early years. The San Francisco 49ers, an original member of the new AllAmerica Football Conference (AAFC), were the first major league professional sports franchise based in San Francisco, and one of the first major league professional sports teams based on the Pacific Coast. In 1946, the team joined the Los Angeles Dons of the AAFC and the Los Angeles Rams of the rival National ...The Northrop YB49 was an American prototype jetpowered heavy bomber developed by Northrop Corporation shortly after World War II for service with the United States Air Force.The YB49 featured a flying wing design and was a turbojetpowered development of the earlier, pistonengined Northrop XB35 and YB35.The two YB49s actually built were both converted YB35 test aircraft.
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Thursday, November 19, 2020