The Dornier Do 335 Pfeil (“Arrow”) was a World War II heavy fighter built by the Dornier company. The two-seater trainer version was 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 engines. The Luftwaffe was desperate to get the design into operational use, but delays in engine deliveries meant only a handful were delivered before the war ended.