Udet U 12b Flamingo (Spezial) (Special) - D-822 Ullrich Auriga FT - N512EA Ultimate 20-300S - N8UB Ultralight Aviation SkyDart SD-2 - 19-4286 Ultravia Pelican PL - PH-VKL Umbaugh 18 - CF-SIU - N106U - (see also Air & Space and Fairchild U-18) United Consultants UC-1 Twin Bee - N87589 Utva      66 - C-FMIG - C-GEQV - N404RC      75 - YU-DEW      Aero-3 - Yugoslav AF: 40101