Mitsubishi Ki-20: a bomber variant of the Junkers G 38

Ju-38 art.jpg
 
This photo shows the Japanese Imperial Army Type 92 heavy bomber exhibited at the Air Expo held at the Futako Amusement Park in the suburbs of Tokyo in April 1941.
Left wing two radiators for outer engine were retracted.
Next picture shows flight scene. I can see exhaust pipe shape in this photo.
And one of the enlarged image.
http://a011w.broada.jp/3ten/92jyubaku.html
 

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Hi!
Source : Japanese Aviation History, Mainichi News Paper.
 

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Hi! Survived Ki-20 propeller.

At the end of 2021, a wooden two-bladed propeller that had been stored under the eaves of a private house in Gifu City for a long time was donated to Kakamigahara City, which is adjacent to the city of Kakamigahara, where the aircraft industry is thriving. This propeller is a huge one with a total length of 4 m 50 cm and a width of 35.5 cm, protected by a metal plate on the leading edge. It is a size that can be held by three adults, and the situation is introduced in the local newspaper with photos.

At first, the propeller was unknown, but an investigation by the Gifu Kakamigahara Air and Space Museum in Kakamigahara City revealed that it was used for a large Type 92 heavy bomber deployed by the IJA in the early 1930s. Although the propeller has two blades, it is said that the two are connected in a cross shape in the form of a cross and used as a four-blade propeller. In addition, since the Type 92 heavy bomber was equipped with four engines, eight of these huge two-bladed propellers were used per aircraft.
 

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It might be worth noting that the Ki-20 was one of the aircraft portrayed in a gorgeous 2013 Japanese animated historical drama film / fictionalised animated biographical film depicting the life of a world famous aircraft designer, Mitsubishi Heavy Industries' Horikoshi Jirō.

Kaze Tachinu / The Wind Rises was written and directed by one of the most famous and best filmmakers in the history of animation, Miyazaki Hayao (1941-).

Indeed, Hugo Junkers was a minor character in that film.
 
Hi! You can see these aircraft in "Kazetachinu".

View: https://www.youtube.com/watch?v=E5dB_9dW2SQ
 
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The existence of the Type 92 heavy bomber was announced to the Japanese public when the Type 95 fighter was announced, but again no photographs were released, only the name of the aircraft. Later, at the military parade in January 1940, three aircraft took off from Tachikawa Airfield and led a formation flight, making their first appearance before the Japanese public, but by this time the aircraft was already quite outdated. After that, one was preserved at the Tokorozawa Flying School Aviation Memorial Museum, and the aircraft were exhibited at defense expositions held at amusement parks all over Japan.
The Junkers' unique corrugated body made the aircraft truly worthy of the term "giant." Particularly astonishing was the thickness of the wings, which allowed the crew to stand and walk inside the wings to the gun turrets installed at the rear of the outer engine nacelles. On both sides of the aisle, numerous fuel tanks were lined up like hanging lanterns.
 

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Hi!
日本最初の総合航空園
関西国民航空錬成場
恒久施設(年中無休)
兵庫県西宮市阪急電鉄西宮駅北側出入口前
Japan's first comprehensive aviation park
Kansai National Aviation Training Center
Permanent facility (open all year round)
In front of the north entrance of Hankyu Railway Nishinomiya Station, Nishinomiya City, Hyogo Prefecture
 

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Hi!
The cockpit instrument panel of this bomber was also quite large, and this instrument panel, which displayed the fuel tank switching valves and fuel gauges, was roughly the size of a single tatami mat(about 2m×1m) and stood like a partition behind the cockpit.
The interior of the fuselage was also so spacious that it was doubtful that it was really an airplane, surprising onlookers. There were ten crew members, with one engine operator stationed in each wing at all times. When sitting in the cockpit, the ground was visible far below, making it difficult to control the aircraft during landing, so a long rod called a landing altitude detector was attached to the underside of the fuselage. When this was lowered during landing, the tip of the rod would touch the ground when the aircraft had descended about two meters above the ground, making a loud rattling noise and simultaneously displaying a message in the cockpit.
The main wheels were arranged in tandem, two on each side, and were huge in size. It was also the first Japanese military aircraft to be equipped with a tail wheel.
 

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Hi!
 

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Hi! G38 D-2000.
 

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Hi! G38 D-2500 three side view drawing.
 

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Hi!

Management code: 837
Dates: March 20, 1941 (Showa 16) - June 20, 1941 (Showa 16)
Location: Tokyo
Venue: Tamagawaen (Maruko), Yomiuri Amusement Park (Futago), Yomiuri Airfield
Organizers: Greater Japan Aviation Association, Yomiuri Shimbun, (supporters) Army, Navy, Ministry of Communications, Ministry of Foreign Affairs, Ministry of Colonial Affairs, Cabinet Intelligence Bureau, Tokyo Prefecture, Tokyo City, Metropolitan Police Department
This exhibition View related materials
[Number of materials: 1]
<Objective>For our country, which is striving to establish the Greater East Asia Co-Prosperity Sphere, the advanced development of aviation is becoming increasingly important from all angles, including national defense and transportation culture, and in the rapidly changing international situation, the Pacific Ocean is also in a state of turmoil, and securing air superiority is becoming an important key to resolving the Southern Problem. In light of this, our company, jointly sponsored with the Great Japan Aviation Association, will hold an "Aviation Expo" to spread basic and scientific knowledge about aviation to the people on the home front and to contribute to the thorough implementation of air defense ideas, and we hope to contribute in some way to the completion of a powerful national defense nation and the construction of a world-class aviation Japan. (The above is from the photo album.) At the Maruko site, there are the Aviation Development Museum, Panorama Museum, Youth Aviation Museum, Aviation Science Museum, Army and Navy Aviation Museum, Future Aviation Museum, and an actual display of a Type 93 twin-engine bomber. Yomiuri Airfield is mainly for air shows. At the second site, Yomiuri Amusement Park, it took a surprisingly long time to assemble Japan's largest super-heavy bomber, which was transported in 13 freight cars. Nomura Co., Ltd. alone mobilized more than 70 people a day, and in the end, over 1,000 people were involved in the assembly over 16 days. In addition to this four-engine super-heavy bomber (44 meters wide), the only one in the history of Japanese Army aviation, various Army and Navy aircraft, Junkers dive bombers, and the remains of the shot-down I-16 were also on display at the site. Participated in the decoration of the attractions (from the company history "700,000 Hours of Journey 2")
 

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Hi!
These priceless photographs were kindly provided by Nomura Co., Ltd.
 

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Source.
Commemoration of the Expo, The Japan Aerospace Association, The Yomiuri Shimbun
Printed in the first of September 1941.
 

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