English: Dornier Do 335 Pfeil (Arrow) in the National Air and Space Museum, Steven F. Udvar-Hazy Center, Washington DC. The Dornier Do 335 Pfeil was a World War II heavy fighter built by the Dornier company. The two-seater trainer version was unofficially also called Ameisenbär ("anteater"). The Pfeil's performance was much better than other twin-engine designs due to its unique "push-pull" layout and the much lower drag of the in-line alignment of the two motors. The Luftwaffe was desperate to get the design into squadron use, but delays in engine deliveries meant only a handful were delivered before the war ended. The Do 335 of the NASM is the only one left. The aircraft was the second preproduction Do 335 A-0, designated A-02, with construction number (Werknummer) 240102, and factory radio code registration, or Stammkennzeichen, of VG+PH. In 1975 the aircraft was restored by Dornier employees, many of whom had worked on the airplane originally.