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was a
Japanese Japanese may refer to: * Something from or related to Japan, an island country in East Asia * Japanese language, spoken mainly in Japan * Japanese people, the ethnic group that identifies with Japan through ancestry or culture ** Japanese diaspor ...
aviator An aircraft pilot or aviator is a person who controls the flight of an aircraft by operating its directional flight controls. Some other aircrew members, such as navigators or flight engineers, are also considered aviators because they a ...
. Iinuma was born in Toyoshina (now part of Azumino,
Nagano Prefecture is a Landlocked country, landlocked Prefectures of Japan, prefecture of Japan located in the Chūbu region of Honshu. Nagano Prefecture has a population of 2,007,682 () and has a geographic area of . Nagano Prefecture borders Niigata Prefecture ...
), and was a graduate of the
Imperial Japanese Army The Imperial Japanese Army (IJA; , ''Dai-Nippon Teikoku Rikugun'', "Army of the Greater Japanese Empire") was the principal ground force of the Empire of Japan from 1871 to 1945. It played a central role in Japan’s rapid modernization during th ...
flying school at
Tokorozawa is a Cities of Japan, city located in Saitama Prefecture, Japan. , the city had an estimated population of 343,298 in 168,939 households and a population density of 4761 persons per km². The total area of the city is . Geography Tokorozawa is ...
. At age 24 he gained fame as the pilot on the , a
Mitsubishi The is a group of autonomous Japanese multinational companies in a variety of industries. Founded by Yatarō Iwasaki in 1870, the Mitsubishi Group traces its origins to the Mitsubishi zaibatsu, a unified company that existed from 1870 to 194 ...
Ki-15 ''Karigane'' aircraft, ( registration J-BAAI) sponsored by the
newspaper A newspaper is a Periodical literature, periodical publication containing written News, information about current events and is often typed in black ink with a white or gray background. Newspapers can cover a wide variety of fields such as poli ...
''
Asahi Shimbun is a Japanese daily newspaper founded in 1879. It is one of the oldest newspapers in Japan and Asia, and is considered a newspaper of record for Japan. The ''Asahi Shimbun'' is one of the five largest newspapers in Japan along with the ''Yom ...
''. It became famous on April 9, 1937 as the first Japanese-built aircraft to fly from Japan to
Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...
, making the flight between
Tokyo Tokyo, officially the Tokyo Metropolis, is the capital of Japan, capital and List of cities in Japan, most populous city in Japan. With a population of over 14 million in the city proper in 2023, it is List of largest cities, one of the most ...
and
London London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...
, in time for the
coronation of King George VI and Queen Elizabeth The coronation of the British monarch, coronation of George VI and his wife, Queen Elizabeth The Queen Mother, Elizabeth, as King of the United Kingdom, king and List of British royal consorts, queen of the United Kingdom and Commonwealth realm, ...
. The total elapsed time from departure from the Tachikawa Airfield was 94 hours, 17 minutes and 56 seconds, with actual flight time for the whole distance of was 51 hours, 19 minutes and 23 seconds. The crew consisted of pilot Iinuma and navigator
Kenji Tsukagoshi (1900–1943) was a Japanese aviator and explorer. He was navigator on the first Japanese-built aircraft to fly from Japan to Europe. Life Tsukagoshi was born in Takasaki, Gunma Prefecture. His father was Japanese and his mother was British. He ...
. The flight was the first
Fédération Aéronautique Internationale The World Air Sports Federation (; FAI) is the world governing body for air sports, and also stewards definitions regarding human spaceflight. It was founded on 14 October 1905, and is headquartered in Lausanne, Switzerland. It maintains worl ...
record won by Japanese aviators. Iinuma later served as chief test pilot for the Kayaba Ka-1
autogyro An autogyro (from Greek and , "self-turning"), gyroscope, gyrocopter or gyroplane, is a class of rotorcraft that uses an unpowered rotor in free autorotation to develop lift. A gyroplane "means a rotorcraft whose rotors are not engine-d ...
from May 1941. Iinuma was killed in December 1941 at
Phnom Penh Phnom Penh is the Capital city, capital and List of cities and towns in Cambodia, most populous city of Cambodia. It has been the national capital since 1865 and has grown to become the nation's primate city and its political, economic, industr ...
airfield in
French Indochina French Indochina (previously spelled as French Indo-China), officially known as the Indochinese Union and after 1941 as the Indochinese Federation, was a group of French dependent territories in Southeast Asia from 1887 to 1954. It was initial ...
when, in a daze from hearing the news of the
attack on Pearl Harbor The attack on Pearl HarborAlso known as the Battle of Pearl Harbor was a surprise military strike by the Empire of Japan on the United States Pacific Fleet at Naval Station Pearl Harbor, its naval base at Pearl Harbor on Oahu, Territory of ...
by Japanese forces, he accidentally walked into a spinning aircraft propeller. His death was officially reported as a military casualty.


References


Notes

* ''Time Magazine''. Pilot Iinuma's Lesson. Jan. 12 1942.


Bibliography

* Francillon, René J. ''Japanese Aircraft of the Pacific War''. London: Putnam Aeronautical, 1979. . (new edition 1987. .) * Yoshimura, Akira ''Zero Fighter''. Greenwood Publishing Group, 1996. ,


External links


Classical Airplanes ''Ki-15 Kamikaze''New Years cards commemorating the 1937 flight
{{DEFAULTSORT:Iinuma, Masaaki 1912 births 1941 deaths Aviators killed in aviation accidents or incidents Japanese aviation record holders People from Nagano Prefecture Victims of aviation accidents or incidents in 1941 Imperial Japanese Army personnel killed in World War II Victims of aviation accidents or incidents in Cambodia