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The 4th Carrier Division (第四航空戦隊, Dai Yon Kōkū Sentai, or Yon Kōsen) was a seaplane tender and aircraft carrier unit of the Imperial Japanese Navy's Combined Fleet.
Organization
| Date | Higher unit | Ships and air units |
|---|---|---|
| 1 December 1937 (original) | Combined Fleet | Notoro, Kinugasa Maru |
| 1 August 1938 | disbanded | |
| 1 April 1941 | 1st Air Fleet | Ryūjō |
| 11 August 1941 | Ryūjō, Destroyer Squadron 3 : Shiokaze, Hokaze | |
| 10 December 1941 | Ryūjō, Kasuga Maru (Taiyō), Destroyer Squadron 3 : Shiokaze, Hokaze | |
| 1 April 1942 | Ryūjō, Shōhō | |
| 3 May 1942 | Ryūjō, Shōhō, Jun'yō | |
| 20 May 1942 | Ryūjō, Jun'yō | |
| 14 July 1942 | disbanded | |
| 1 May 1944 | 3rd Fleet | Hyūga, Ise, 634th Naval Air Group[1] |
| 15 October 1944 | Jun'yō, Ryūhō, Hyūga, Ise | |
| (24 October 1944)[2] | Hyūga, Ise | |
| 15 December 1944 | 2nd Fleet | Hyūga, Ise |
| 1 March 1945 | disbanded | |
Commander
| Rank | Name | Date | |
|---|---|---|---|
| 1 | R.ADM | Tomoshige Samejima | 1 December 1937 |
| x | disbanded | 1 August 1938 | |
| x | vacant post | 1 April 1941 | |
| 2 | R.ADM | Torao Kuwabara | 10 April 1941 |
| 3 | R.ADM | Kakuji Kakuta | 1 September 1941 |
| x | disbanded | 14 July 1942 | |
| 4 | R.ADM | Matsuda Chiaki | 1 May 1944 |
| x | disbanded | 1 March 1945 |
Footnotes
- ^ Carrier Air Group. Equipped D4Y2-Kai Judy and E16A1 Paul.
- ^ Battle of Leyte Gulf (The Battle off Cape Engaño).
Bibliography
- "Monthly The Maru" series, and "The Maru Special" series, "Ushio Shobō". (Japan)
- "Monthly Ships of the World" series, "Kaijinsha". (Japan)
- "Famous Airplanes of the World" series and "Monthly Kōku Fan" series, Bunrindō (Japan)
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