The Dornier Do 335 Pfeil ("Arrow"), unofficially also Ameisenbär ("anteater"), was a World War II heavy fighter built by the Dornier company. The Pfeil's performance was much better than other twin-engine designs due to its unique "push-pull" layout. 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.