History's Largest and Most Expensive Military Aircraft Ever Built

2. The Zero Mitsubishi A6M

Joined the Service in 1940 1945 saw retirement Expense: $3 million * The Mitsubishi A6M Zero, produced by Mitsubishi Aircraft, served the Imperial Japanese Navy during World War II. Between 1940 and 1945, 10,939 Type Zeros were built. While Mitsubishi today is known for SUVs and high-performance cars, the Zero was a far cry from that image.

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