World's Most Massive and Costly Military Aircraft Ever Built

2. The Zero Mitsubishi A6M

Entered Service in 1940 Retired in 1945 Cost: $3 million The Mitsubishi A6M Zero, manufactured by Mitsubishi Aircraft, served the Imperial Japanese Navy during World War II. Between 1940 and 1945, 10,939 of these Type Zeros were produced. While Mitsubishi is now known for its SUVs and high-performance cars, the Zero was a far cry from that image.

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©Wikimedia.org Mitsubishi A6M Zero The Zero was a fearsome dogfighter that initially dominated Allied forces during WWII. However, as the Allies developed new strategies and improved equipment, they overcame the Zero's advantages. By 1944, the aircraft, also known as "Zeke," struggled to compete against the superior Allied forces.