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Apr 29, 2023 8 tweets 3 min read Read on X
In February 1938, the Japanese Navy purchased 20 Seversky 2PA-B3 two-seat fighters.

$1,573,469.06

They were serviced in the Navy, designated A8V1 and saw a little operational use against China.
The photo is of the plane 'Shiokaze-Gō' sold to the newspaper company Asahi Shimbun. Image
On September 24, 1937, Mitsubishi purchased the manufacturing license for the North American NA-16-4 trainer and 1 NA-16-4R (NA-37) fitted with Wasp Junior engine.

License $35,000.00
Plane & Instruments $84,108.65

The photo is the NA-16-4R that was delivered to Mitsubishi. Image
On December 31, 1937, the Japanese Navy purchased 1 North American NA-16-4RW (NA-47) trainer fitted with Whirlwind engine.

$44,785.40

Eventually Watanabe (later Kyūshū) developed the K10W1 intermediate trainer referencing NA-16-4.
The photo is of K10W1. Image
On May 6, 1937, the Japanese Navy purchased 1 Fairchild 91B Jungle Clipper (A-942-B) amphibious transport plane fitted with Cyclone engine.

$80,530.00

It was evaluated by the Navy with the experimental designation LXF1, but wrecked in a landing accident. Image
On June 26, 1937, the Japanese Navy purchased 1 Canadian Car & Foundry G-23 Goblin two-seat carrier fighter fitted with Cyclone engine.

$43,750.00

A Canadian-produced variant of the US Grumman FF.
The Japanese Navy evaluated it as the AXG1.
The photo is of an RCAF Goblin. Image
On July 17, 1937, the Japanese Army purchased 1 Ranger V-770 engine.

$6,268.33

This was an air-cooled, 12-cylinder, inverted-V aircraft engine. Image
On February 9, 1939, the Japanese Army purchased 1 Kellett KD-1A autogyro.

$27,452.70

When damaged during Army trials, it was repaired by Kayaba. The results were good, so the domestic model 'Ka-Gō' was produced and serviced.
The photo is of YG-1B, a US Army model of KD-1A. Image
On July 7, 1937, the Japanese Army purchased the manufacturing license and 1 Vought V-143 fighter fitted with Twin Wasp Junior engine, plus 1 spare engine.

Plane & Spare Engine $105,000.00

Not credited for high performance, the structure was studied. Also inspected by the Navy. Image

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More from @qaz1300

Sep 23, 2023
There is a well known incident in which a rogue 'I-Gō' missile hit a ryokan women's bath room in the city of Atami during testing. Four women were killed or injured, two staff and two bathers.

Because of this it acquired the nickname 'ero-bomb' -- 'perverted bomb'.

1/
Ki-147 below Ki-67
I-Gō Model 1 was developed in 2 variants:

Kō, pictured above, remained experimental with few units. 800kg warhead
Otsu, a smaller missile, is the subject of the quoted post. 300kg warhead

According to the majority of sources, this ero-bomb incident was caused by an Otsu...

2/
Contrarily, Senshi Sousho 87 records that it was a Kō.

I can't definitely conclude which variant actually caused the accident, but it is compelling to think that it was maybe the Kō.
(However, as a prototype missile, it's very possible that either variant could malfunction.)

3/
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