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渡辺鉄工所

渡辺鉄工所

Watanabe Tekkōjo · Kyūshū Hikōki (aircraft division from 1943)

A Fukuoka steel foundry that built seaplanes small enough to fold into a submarine, trained Japan’s naval airmen in licensed Jungmanns, and as Kyushu flew the canard Shinden days before the war ended.

2001年に閉鎖状態
7記録に残っている航空機
1その機種を運用する空軍
Photo: Mondey, David / Wikimedia Commons (Public domain)
国日本本部Fukuoka状態2001年に閉鎖
その物語

Watanabe Iron Works: the company and the aircraft that made its name

A foundry takes to the air

Watanabe Tekkōjo was a steel foundry in Fukuoka, on Japan’s southern island of Kyushu, that started building aircraft in 1935. Its first notable design was the E9W, a tiny reconnaissance seaplane for the navy’s submarines, which first flew in February 1935. It could be dismantled for stowage in a submarine hangar and reassembled in two minutes thirty seconds. Thirty-five were built, entering service in 1938 as the Type 96 small reconnaissance seaplane, Allied codename Slim.

Seaplanes in a submarine

Much of the firm’s work was training aircraft. It built the K9W Momiji, a licensed Bucker Jungmann, of which 339 were produced in Japan, and helped build the Yokosuka K5Y Red Dragonfly trainer. It also built a seaplane for the Royal Siamese Navy, the K6W. In 1943 the aircraft business was split off as Kyūshū Hikōki, while the parent became Kyūshū Heiki.

From Shinden to car bodies

Under the Kyushu name came the K11W crew trainer, of which 798 were built, the Q1W Tōkai anti-submarine patrol aircraft, first flown in September 1943, and the extraordinary J7W Shinden, a canard pusher interceptor. The Shinden first flew on 3 August 1945, twelve days before Japan surrendered; only two were completed, and one survives in the Smithsonian. After the war the company became Watanabe Jidōsha Kōgyō, making car bodies, until it was dissolved in 2001.

A Fukuoka steel foundry that built seaplanes small enough to fold into a submarine, trained Japan’s naval airmen in licensed Jungmanns, and as Kyushu flew the canard Shinden days before the war ended.Watanabe Iron Works · verified 2026-10-03

一目でわかる

Watanabe Iron Works in numbers

会社

要するに
Aircraft from 1935

  • Steel foundry in Fukuoka
  • Aircraft division became Kyūshū Hikōki in 1943

生産

最もよく知られているのは
E9W、K9W、J7W 震電

  • 35 E9W submarine seaplanes
  • 339 K9W trainers
  • 798 K11W crew trainers

今日

今
Dissolved 2001

  • Built car bodies and parts after 1945 as Watanabe Jidōsha Kōgyō

数字

K9W Momiji built
339
K11W Shiragiku built
798
E9W built
35

航空機

Every notable Watanabe Iron Works aircraft

航空機 役割 初飛行 建設済み 状態 注記
Watanabe E9W Submarine-borne reconnaissance seaplane 1935 35 退職 Reassembled in 2 min 30 s
Watanabe K6W Seaplane for the Royal Siamese Navy 退職
Watanabe K8W Floatplane trainer prototype 1938 退職
Kyushu K9W Momiji Basic trainer (licensed Bucker Bu 131) 1939 339 退職
Kyushu K11W Shiragiku Crew and bombing trainer 1943 798 退職 Also used for kamikaze attacks
Kyushu Q1W Tokai 対潜哨戒機 1943 退職 Allied codename Lorna
Kyushu J7W Shinden Canard interceptor prototype 1945 2 退職 Forward fuselage at the Udvar-Hazy Center

誰がそれらを飛ばすのか

Watanabe Iron Works aircraft in the world’s air forces

1 air forces in the Order of Battle fly or flew Watanabe Iron Works types. そのうち、現在も運用されているものはゼロです。.

空軍 使用中 以前は飛行していた
タイ王国海軍航空隊 ワタナベ WS-103S

場所、人物、記録

Where Watanabe Iron Works built, who led it, what it achieved

工場

  • Fukuoka works · Fukuoka, Kyushu

人々

  • Masayoshi Tsuruno · naval officer and designer — Originated the Shinden canard concept and flew its first flight

タイムライン

Watanabe Iron Works, year by year

1935

Watanabe begins building aircraft

1935

E9W first flight

1938

E9W enters service; K8W prototype

1939

K9W trainer

1943

Aircraft division becomes Kyūshū Hikōki

1943

Q1W Tōkai first flight

1945

J7W Shinden first flight

1945

Renamed Watanabe Jidōsha Kōgyō, making car bodies

2001

Company dissolved


質疑応答

Everything people ask about Watanabe Iron Works

What was Watanabe Tekkojo?
A steel foundry in Fukuoka, Japan, that built aircraft for the Imperial Japanese Navy from 1935; its aircraft division became Kyushu Hikoki in 1943.
Who built the J7W Shinden?
Kyushu Hikoki, the former aircraft division of Watanabe. It first flew on 3 August 1945 and only two were completed.
What was the E9W?
A small reconnaissance seaplane that could be folded into a submarine hangar and reassembled in two and a half minutes.
What happened to Watanabe after the war?
It became Watanabe Jidosha Kogyo, making car bodies and parts, and was dissolved in 2001.