The Mitsubishi A6M Zero was a light-weight carrier-based fighter aircraft employed by the Imperial Japanese Navy Air Service from 1940 to 1945.

It is universally known as Zero from its Japanese Navy designation, Type 0 Carrier Fighter (Rei shiki Kanjo sentoki), taken from the last digit of the Imperial year 2600 (1940), when it entered service. In Japan it was unofficially referred to as both Rei-sen and Zero-sen. The official Allied code name was Zeke (Hamp for the A6M3 model 32 variant); while this was in keeping with standard practice of giving boys' names to fighters, it is not definitively known if this was chosen for its similarity to "Zero".

In order to correct the deficiencies of the Model 32, a new version with folding wingtips and redesigned wing was introduced. The fuel tanks were moved to the outer wings, fuel lines for a 330 L (87 US gal) drop tank were installed under each wing and the internal fuel capacity was increased to 570 L (150 US gal). More importantly, it regained its capabilities for long operating ranges, similar to the previous A6M2 Model 21, which was vastly shortened by the Model 32.

However, before the new design type was accepted formally by the Navy, the A6M3 Model 22 already stood ready for service in December 1942. Approximately 560 aircraft of the new type had been produced in the meantime by Mitsubishi Jukogyo K.K.

According to a theory, the very late production Model 22 might have had wings similar to the shortened, rounded-tip wing of the Model 52. One plane of such arrangement was photographed at Lakunai Airfield ("Rabaul East") in the second half of 1943, and has been published widely in a number of Japanese books. While the engine cowling is the same of previous Model 32 and 22, the theory proposes that the plane is an early production Model 52.

The Model 32, 22, 22 kou, 52, 52 kou and 52 otsu were all powered by the Nakajima (Sakae) 21 engine. That engine kept its designation in spite of changes in the exhaust system for the Model 52.

Pictured here is a 1:72 scale replica of an Imperial Japanese Mitsubishi A6M2 Zero fighter that was piloted by Warrant Officer Tetsuzo Iwamoto, who was attached to the 253rd Kokutai during 1944. Now in stock!

Dimensions:
Wingspan: 6-1/2-inches
Length: 5-inches

Release Date: July 2022

Historical Account: "Pacific Ace" - Lieutenant Junior Grade Tetsuzō Iwamoto was one of the top scoring aces among Imperial Japanese Navy Air Service (IJNAS) fighter pilots. He entered the Imperial Navy in 1934 and completed pilot training in December 1936. His first combat occurred over China in early 1938. He emerged as the top ace of the Imperial Japan during WWII, credited with at least 87 aerial victories including 14 victories in China. Subsequently, he flew Zeros from the aircraft carrier Zuikaku from December 1941 to May 1942, including at the Battle of the Coral Sea.

In late 1943, Iwamoto's air group was sent to Rabaul, New Britain, resulting in three months of air combat against Allied air raids.

Subsequent assignments were Truk Atoll in the Carolines and the Philippines, being commissioned an ensign in October 1944. Following the evacuation of the Philippines, Iwamoto served in home defense and trained kamikaze pilots.

As a result of the Japanese use of the British naval practices, the IJNAS scoring system was based on the system the Royal Navy and the Royal Air Force (RAF) adopted from World War I until World War II. This system differed from the scoring system used by some other nations during World War II. Research by academics surnamed Izawa and Hata in 1971 estimated his score at about 80 or more than 87. In December 1993, Izawa wrote that Iwamoto was virtually the top ace of the IJNAS.

As of mid-1944, there remained only two IJNAS fighter pilots who were credited with over 100 victories. Depending on various totals cited, Tetsuzō Iwamoto or Hiroyoshi Nishizawa was Japan's top ace. Iwamoto was known as the Chūtai leader (Flying Company, squadron of 8 to 16 fighters). Iwamoto was one of few survivors of the IJNAS from the early part of the Second World War. He fought over the Indian and the Pacific Ocean from north to south, and trained young pilots even in the last months of the war. Like many Japanese veterans, Iwamoto was reported to have fallen into depression after the war. His diary was found after his death, with claims of 202 Allied aircraft destroyed.