<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Weren't UA 1 and 2 direct descendents of Pan Am 1 and 2, which, of course, didn't meet the test of time either?</font>
Yes. United purchased those route rights from Pan Am.
United has twice pulled the true RTW service which UA #1 and #2 certainly were, and to this day no carrier offers a real RTW on its own metal AFAIK.
And Spider is certainly correct about QF #1 and QGF #2.
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Glen ~