The first Boeing airliner, a , registered as NU, made its first flight at Renton, Washington. The was a development of. chiralitycentre.eu: Pins for Sale by Owner: The Starship, NU (S/N: ), was the first Boeing built. It was delivered to United Airlines on October and . This machine with the serial number NU was delivered to United Airlines and was used by it on internal routes from to In famous former.