The unique appearance of the F4U Corsair stemmed from its bent wings, which were necessary to hold up the biggest propeller ever installed, and a very powerful engine. In this episode, the scrappy fighter plane is scrutinized, and archival footage is used to illustrate its capabilities. The Japanese referred to it as "the Whistling Death," due to the noise from its engine. Many experts agree that the F4U was able to outfight and outmaneuver most planes of the war, and at war's end, it racked up a kill ratio of 11:1 against the enemy