Mitsubishi A6M2 Zero. Top Speed: 331mph/533kph. Armament: 2x Cannons 2x Machine Guns. The Zero or "Zeke" (Which was the Allied reporting name) was the Imperial Japanese Navy's primary fighter aircraft during WW2. It dominated the skies during the first years of the war, being extremely maneuverable and fast. Later on however, it's lack of armor and comparatively weak armament became a serious handicap as more advanced and powerful allied aircraft were developed and pitted against it.