Japanese Army Air Force (JAAF) Hoku Sentai
Japanese Army Air Force (JAAF) Sentai (Flying Regiment)

1st Sentai 2nd Sentai 3rd Sentai 4th Sentai 5th Sentai 6th Sentai 7th Sentai 8th Sentai 9th Sentai	10th Sentai 11th Sentai 12th Sentai 13th Sentai 14th Sentai 15th Sentai 16th Sentai 17th Sentai 18th Sentai 19th Sentai	20th Sentai 21st Sentai 22nd Sentai 23td Sentai 24th Sentai 25th Sentai 26th Sentai 27th Sentai 28th Sentai 29th Sentai	30th Sentai 31st Sentai 32nd Sentai 33rd Sentai 34th Sentai 35th Sentai 36th Sentai 37th Sentai 38th Sentai 39th Sentai	40th Sentai 41st Sentai 42nd Sentai 43rd Sentai 44th Sentai 45th Sentai 46th Sentai 47th Sentai 48th Sentai 49th Sentai
50th Sentai 51th Sentai 52th Sentai 53th Sentai 54th Sentai 55th Sentai 56th Sentai 57th Sentai 58th Sentai 59th Sentai	60th Sentai 61th Sentai 62th Sentai 63th Sentai 64th Sentai 65th Sentai 66th Sentai 67th Sentai 68th Sentai 69th Sentai	70th Sentai 71st Sentai 72nd Sentai 73rd Sentai 74th Sentai 75th Sentai 76th Sentai 77th Sentai 78th Sentai 79th Sentai	208th Sentai 246th Sentai 248th Sentai	Independent Squadrons 20th Dokuritsu Hiko Chutai 70th Dokuritsu Hiko Chutai 7th Flying Unit

Japanese Army Air Force (JAAF)
Koku Gun (Air Force)
Hiko Shudan (Air Corps)
Hiko Shindan (Air Division)
Hiko Dan (Air Brigade)
Hiko Sentai (Air Regiment) / Hiko Rentai (Air Regiment)
Hiko Daitai (Air Battalion)
Dokuritsu Hiko Chutai (Independent Company)
Chutai (Company)
Shotai (Flight)

4th Sentani

Established	Aircraft	Areas of Operation
July, 1938	Ki-10 Ki-27 Ki-45	Formosa, Japan

Unit dispanded at the end of the war at Ozuki Air Base, Yamaguchi Prefecture, Japan

5th Sentani

Established	Aircraft	Areas of Operation
August 31, 1938	Ki-10 Ki-27 Ki-45 Ki-100	East Indies, Western New Guinea, Japan

Unit dispanded at the end of the war at Kiyosu, South-East of Nagoya, Japan

7th Sentani

Established	Aircraft	Areas of Operation
	Ki--49	New Guinea

Part of the 9th FB (along with 61st Sentai) the only Type 100 HB units in the SE Area. Other units with the type were transport units. 7th was withdrawn in early 1944 and replaced by a Type 97 HB unit (60th Sentai).

9th Sentani

Established	Aircraft	Areas of Operation
July 1, 1938 in China	Ki-10 Ki-27 Ki-44 Ki-84	Manchuri (Nomonhan), China

Unit dispanded at the end of the war at Nanking, China. Flew against B-29's.

11th Hiko Sentai (11th Flying Regiment)

13th Sentani

Established	Aircraft	Areas of Operation
	Ki-45 Ki-43	Burma Rabaul (Rapopo) Kamiri (April 1944)

Started as a Type 2 two-seat fighter (Ki 45) but lost all its fighters by September 1943. It took over some Ki-43s from departing units (1st Sentai), then converted to Ki 43-II. It apparently remained (technically) a Ki-45 unit until early 1944 and had a few on strength from time to time. They fought at Wewak with Ki-43s until late Nov 1943 then withdrew through Wadke to the NEI. They again received some heavy fighters but by the time they moved to Kamiri in April 44 they had officially become a Type 1 fighter unit.

14th Hiko Sentai (14th Flying Regiment)

24th Hiko Sentai (24th Flying Regiment)

26th Sentani

Established	Aircraft	Areas of Operation
	Ki-51 Ki-43	New Guinea Philippines, Clark Field

Flew only Type 99 Assault (Ki 51) in New Guinea. The third chutai with fighters never came to the SE area.

27th Sentani

Established	Aircraft	Areas of Operation
	Ki-45	Philippines

Ki-45 Nick

 

29th Sentani

Established	Aircraft	Areas of Operation
	Ki-44 Ki-84	Clark Field Murphy Field

Later served based at Murphy Field in the Manila area flying Ki-44 and Ki-84.

45th Sentai

52nd Sentai

Ki-84 Frank

Osaka April-May '44
Ashiya, Kyushu, May-September '44
Del Carmen, September-October '44
Saravia, October-November '44
Del Carmen November '44
Shimodate December '44 - MArch '45
Itami March '45
Kakogawa March-April '45
Shimodate April-July '45
Chofu July-end of war '45

59th Sentai

60th Sentani

Established	Aircraft	Areas of Operation
	Ki-21

Flew Ki-21 Sally based at Galela in April 1944., along with 33rd and 77th Sentai

61st Sentani

Established	Aircraft	Areas of Operation
	Ki-21

Part of the 9th FB (along with 7th Sentai) Previously flew Ki-21, based in Celebes. Was the first unit to take the Type 100 HB into combat (Darwin 6/20/43) and transferred to New Guinea in Jul-Aug 43. It was joined there by the 7th Sentai. Together they formed the 9th FB. The 7th was withdrawn in early 1944 and replaced by the 60th Sentai. 7th and 61st were the only Type 100 HB units in the SE Area. Other units with the type were transport units. Decimated in New Guinea, reformed in Japan with Ki-67 in May 1945.

63rd Sentani

68th Sentani

72th Sentani

Established	Aircraft	Areas of Operation
May 30, 1944	Ki-43	Philippines

Organized on May 30, 1944 and advanced to the Philippines in December 1944. By January 1945 the unit had lost all of its planes and was disbanded in the Philippines on January 16, 1945. Reference: Akimoto via Jim Long

74th Sentani

Established	Aircraft	Areas of Operation
		Philippines

???

77th Sentani

Established	Aircraft	Areas of Operation
July 27, 1938 Nanking, China	Ki-10 Ki-27 Ki-43	China, Thailand, Burma, East Indies, New Guinea (Hollandia & Wewak)

Organized in July 1937 from the 4th Hiko Rentai as the 8th Hiko Daitai. In July 1938 reorganized as the 77th Hiko Sentai with 2 Chutais. Was in Nothern Burma till Feb.44 and then transferred to Hollandia (Feb-apr.'44) and Wewak (March'44). In New Guinea 9 recorded victories, no known surviving pilots.

Commanding officers in New Guinea:
Maj.Kunio Matsumoto from Oct 43 - April 44 (KIA)
Maj. Shigetoshi Inoue from April to August '44.

One of their top aces was Capt.Yoshiro Kuwabara, the 3rd Chutai leader with 12 victories. he shot down a P-47 on the 11th of March but went missing on the 14th.

Unit was destroyed by the USAAF, not a single pilot survived the war. On July, 25th the unit was disbanded.

78th Sentani

208th Hiko Sentai (208th Flying Regiment)

246th Sentani

Established	Aircraft	Areas of Operation
	Ki-44	Philippines

20th Dokuritsu Hiko Chutai (20th Independent Squadron)

Established	Aircraft	Areas of Operation
	Ki-27	Philippines

20th Independent Squadron flew Ki-21 Sallys in the transport and liason role at Hollandia. They probably had no a/c based there but may have still flown liaison missions there. However, there may other possibilities. A key here is the fact that the Chief of Staff of Yo Force (6th Flying Division) flew into Hollandia on the evening of the 20th (this from a captured diary of a Lt. Col. Onada). He may have flown in transport attached to 6th FD HQ or one of the units just mentioned. While other possibilities cannot be ruled out, it seems most likely the a/c destroyed was a transport that had flown in the evening of the 20th and was most probably from one of the resident units or 6th FD HQ. Just surmise, however.

70th Dokuritsu Hiko Chutai (70th Independent Squadron)

7th Flying Unit

Established	Aircraft	Areas of Operation
	Ki-27	Philippines

References
Thanks to Richard Dunn for additional information.

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