Le Cygnet de Viking aircraft
https://en.wikipedia.org/wiki/Viking_SF-2A_Cygnet…
Le cargo Convair XC-99
https://en.wikipedia.org/wiki/Convair_XC-99 The US Air Force determined that it had no need for such a large, long-range transport at that time, and no more were ordered. The sole XC-99 served until 1957, including much use during the Korean War. It made twice weekly trips from Kelly AFB to the aircraft…