4 Reasons Why The A6M Zero Quickly Became Mediocre

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Japan’s fast expansion in the Pacific was bolstered by its formidable navy, staunch army, and the swift Mitsubishi Zeros. However, the rapid rise of the Zeros also led to its steep decline. Here’s why:
1. There’s Barely Any Armor
The Zero’s agility and speed came at a cost—thin armor plating left little margin for error, rendering it highly susceptible to ground fire.
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Furthermore, the absence of self-sealing fuel tanks made the Zeros prone to catastrophic explosions from even minor damage, a vulnerability exploited by Allied forces during Japanese air raids.
2. It Had Inferior Weapons
As the war progressed, the Zero’s initial advantages in speed and firepower were eclipsed by the introduction of superior Allied fighter planes.
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With only two machine guns and two cannons, the Zero paled in comparison to American aircraft like the Corsair, equipped with six machine guns and four cannons.
3. The Engines Were Outpaced By Newer Ones
The weaker Nakajima Sakae-12 engine further compounded its shortcomings, unable to match the power of Allied engines like the P-51 Mustang’s Merlin, which boasted a significant horsepower advantage and higher potential maximum speed.
4. Deterred By Better Strategies
The implementation of aerial combat strategies such as the Thach Weave proved instrumental in deterring Zeros and shifting the tide of aerial warfare in favor of the Allies during WWII.
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The legacy of the Mitsubishi Zero serves as a cautionary tale, illustrating the delicate balance between technological prowess and tactical innovation on the battlefield.