"Tora! Tora! Tora!"
- Predetermined Japanese signal indicating they had achieved complete surprise leading up to the aerial assault at Pearl Harbor, December 7th, 1941

The Nakajima B5N (Allied reporting name: Kate) was the Imperial Japanese Navy's standard torpedo bomber for the first years of World War II. While the B5N was substantially faster and more capable than its Allied counterparts, the TBD Devastator and Fairey Swordfish, it was close to obsolescence by the time of the Pearl Harbor Attack. Nevertheless, the B5N operated throughout the whole war. Although primarily used as a carrier-based aircraft, it was also used as a land-based bomber on occasions. The B5N had a crew of 3: pilot, navigator/bombardier/observer, and radio operator/gunner.

The B5N was designed by a team led by Katsuji Nakamura in response to a 1935 specification by the Navy for a torpedo bomber to replace the Yokosuka B4Y. Internally designated Type K by Nakajima, it successfully competed with the Mitsubishi B5M for a production contract. The first prototype flew in January 1937 and was ordered into production soon afterwards with the full designation Type 97 Carrier Attack Bomber.

The B5N soon saw combat, first in the Sino-Japanese War, where combat experience revealed several weaknesses in the original B5N1 production model. These were mainly concerned with the lack of protection that the design offered its crew and fuel tanks. Keen to maintain the high performance of the type, the Navy was reluctant to add weight in the form of armour, and instead looked to obtaining a faster version of the aircraft in the hopes of out-running enemy fighters. The B5N2 was given a much more powerful engine, and various modifications were made to streamline it. Although its performance was only marginally better, and its weaknesses remained unremedied, this version replaced the B5N1 in production and service from 1939. It was this version that would be used by the Navy in the attack on Pearl Harbor. Apart from this raid, the greatest successes of the B5N2 were the key roles they played in sinking the US Navy aircraft carriers Yorktown, Lexington and Hornet.

The B5N served as the basis for a follow-on design, the Nakajima B6N, which eventually replaced it in front-line service. The B5N continued to fly in secondary roles, such as training, target towing, and anti-submarine warfare. Some of the aircraft used for this latter purpose were equipped with early radars and magnetic anomaly detectors. B5Ns were also used as bombers during the unsuccessful defense of the Philippines in October 1944.

Pictured here is a 1:72 scale replica of an Imperial Japanese Navy Nakajima B5N1 "Kate" torpedo bomber that was piloted by Sanzao Dao, who was attached to the 14th Kokutai, then operating in South China from 1938-1939. #HA2013

Dimensions:
Wingspan: 8-1/2-inches
Length: 5-3/4-inches

Features:
- Diecast construction
- Accurate markings and insignia
- Opening canopy
- Comes with seated pilot figure
- Spinning propeller
- Interchangeable landing gear
- Comes with display stand

Historical Account: "The Second Sino-Japanese War" - The Second Sino-Japanese War (1937-1945) was a military conflict that was primarily waged between the Republic of China and the Empire of Japan. The war made up the Chinese theater of the wider Pacific Theater of the Second World War. The beginning of the war is conventionally dated to the Marco Polo Bridge Incident on July 7th, 1937, when a dispute between Japanese and Chinese troops in Peking escalated into a full-scale invasion. This full-scale war between the Chinese and the Empire of Japan is often regarded as the beginning of World War II in Asia.

In 2017, the Ministry of Education in the People's Republic of China decreed that the term "eight-year war" in all textbooks should be replaced by "fourteen-year war", with a revised starting date of September 18th, 1931, provided by the Japanese invasion of Manchuria. According to historian Rana Mitter, historians in China are unhappy with the blanket revision, and (despite sustained tensions) the Republic of China did not consider itself to be continuously at war with Japan over these six years. The Tanggu Truce of 1933 officially ended the earlier hostilities in Manchuria while the He-Umezu Agreement of 1935 acknowledged the Japanese demands to put an end to all anti-Japanese organizations in China.

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