Japan Air Self Defence Force

Japan Air Self-Defense Force 航空自衛隊
Founded	1954
Country	Japan
Size	45,000 personnel (2005 est.) 474 combat aircraft (2005 est.)
Part of	Japan Self-Defense Forces
Insignia
Roundel
Ensign
Aircraft flown
Electronic warfare	E-767, EC-1, E-2C
Fighter	F-2, F-4EJ, F-15J
Helicopter	UH-60J, CH-47J, KV-107
Trainer	T-7, T-400, T-4
Transport	C-1, KC-767J, C-130H

The Japan Air Self-Defense Force (航空自衛隊, Kōkū Jieitai^?), or JASDF, is the aviation branch of the Japan Self-Defense Forces responsible for the defense of Japanese airspace and other aerospace operations.^[1] The JASDF carries out combat air patrols around Japan, while also maintaining an extensive network of ground and air early warning radar systems. The branch also has an aerobatic team known as Blue Impulse and has recently been involved in providing air transport in several UN peacekeeping missions.

The JASDF has an estimated 45,000 personnel and 474 combat ready aircraft as of 2005. Front-line formations include twelve fighter squadrons, one reconnaissance squadron and five transport squadrons.^[2]

1 History
- 1.1 Formation
2 Organization
3 Equipment
4 See also
5 References and notes
6 External links

History

Formation

Before forming the Japanese Self-Defense Forces after World War II, Japan did not have a separate air force. Aviation operations were carried out by the Imperial Japanese Army Air Service and the Imperial Japanese Navy Air Service. Following World War II the Imperial Japanese Army and Navy were dissolved and replaced by the JSDF with the passing of the 1954 Self-Defense Forces Law with the JASDF as the aviation branch.

Organization

Major units of the ASDF are the Air Defense Command, Air Support Command, Air Training Command, Air Development and Test Command, and Air Material Command. The Air Support Command is responsible for direct support of operational forces in rescue, transportation, control, weather monitoring and inspection. The Air Training Command is responsible for basic flying and technical training. The Air Development and Test Command, in addition to overseeing equipment research and development, is also responsible for research and development in such areas as flight medicine.

The Air Defense Command has northern, central, and western regional headquarters located at Misawa, Iruma, and Kasuga, respectively and the Southwestern Composite Air Division based at Naha on Okinawa. All four regional headquarters control surface-to-air missile units of both the ASDF and the GSDF located in their respective areas.

Prime Minister of Japan
- Minister of Defense
  - JASDF Chief of Staff / Air Staff Office
    - Air Defense Command: Fuchu, Tokyo
      - Northern Air Defense Force: Misawa, Aomori
        
        2nd Air Wing (Chitose Air Base: 201SQ, F-15J/DJ, T-4; 203SQ, F-15J/DJ, T-4)
        
        3rd Air Wing (Misawa Air Base: 3SQ, F-2A/B T-4; 8SQ, F-2A/B, T-4)
        
        Northern Aircraft Control & Warning Wing
        
        3rd Air Defence Missile Group
        
        6th Air Defence Missile Group
      - Central Air Defense Force: Iruma, Saitama
        
        6th Air Wing (Komatsu Air Base: 303SQ, F-15J/DJ, T-4; 306SQ, F-15J/DJ, T-4)
        
        7th Air Wing (Hyakuri Air Base: 302SQ, F-4EJ-Kai, T-4; 305SQ, F-15J/DJ, T-4)
        
        Middle Aircraft Control & Warning Wing
        
        1st Air Defence Missile Group
        
        4th Air Defence Missile Group
        
        Iwo Jima Air Base Group
      - Western Air Defense Force: Kasuga, Fukuoka
        
        5th Air Wing (Nyutabaru Air Base: 301SQ, F-4EJ-Kai, T-4)
        
        8th Air Wing (Tsuiki Air Base: 304SQ, F-15J/DJ, T-4; 6SQ, F-2A/B, T-4)
        
        Western Aircraft Control & Warning Wing
        
        2nd Air Defence Missile Group
      - Southwestern Composite Air Division: Naha, Okinawa
        
        83d Air Wing (Naha Air Base: 204SQ, F-15J/DJ, T-4)
        
        Southwestern Aircraft Control & Warning Group
        
        5th Air Defence Missile Group
      - Airborne Early Warning Group: Misawa Air Base(E-2C), Hamamatsu Air Base(E-767)
      - Tactical Reconnaissance Group: Hyakuri Air Base(RF-4E, RF-4EJ)
      - Tactical Fighter Training Group: Nyutabaru Air Base(F-15DJ/J, T-4)
      - Air Defense Missile Training Group: Hamamatsu, Chitose
      - Air Defence Command Headquarters Flight Group (Iruma Air Base: U-4, YS-11EA,YS-11EB, T-4, EC-1)
  - Air Support Command: Fuchu, Tokyo
    - Air Rescue Wing (UH-60J, U-125A, CH-47J, KV-107)
    - 1st Tactical Airlift Wing (Komaki Air Base: 401SQ, C-130H; 404SQ, KC-767J)
    - 2nd Tactical Airlift Wing (Iruma Air Base: 402SQ, C-1, U-4)
    - 3rd Tactical Airlift Wing (Miho Air Base: 403SQ, C-1,YS-11NT/P; 41SQ, T-400)
    - Air Traffic Control Service Group
    - Air Weather Service Group
    - Flight Check Squadron (Iruma Air Base: U-125,YS-11FC)
    - Special Airlift Group (Chitose Air Base: B747-400)
  - Air Training Command: Hamamatsu, Shizuoka
    - 1st Air Wing (Hamamatsu Air Base: 31SQ, T-4; 32SQ, T-4)
    - 4th Air Wing (Matsushima Air Base: 21SQ, F-2B; 11SQ, T-4 Blue Impulse)
    - 11th Flying Training Wing (Shizuhama Air Base: 1SQ, T-7; 2SQ, T-7)
    - 12th Flying Training Wing (Hofu kita Air Base: 1SQ, T-7; 2SQ, T-7)
    - 13th Flying Training Wing (Ashiya Air Base: 1SQ, T-4; 2SQ, T-4)
    - Air Basic Training Wing
    - Flying Training Squadron (Nyutabaru Air Base: F-15DJ/J,T-4)
    - Air Training Aids Group
    - Air Officer Candidate School
    - 1st, 2nd, 3rd, 4th & 5th Technical School
  - Air Development and Test Command: Iruma Air Base, Saitama
    - Air Development and Test Wing (Gifu Air Base: F-15J/DJ, F-2A/B, C-1FTB, F-4EJ, F-4EJ-kai, T-7, T-4)
    - Electronics Development and Test Group
    - Aeromedical Laboratory
  - Air Material Command: Jujou, Tokyo
    - 1st, 2nd, 3rd & 4th Air Depot
  - Air Staff College
  - Air Communications and Systems Wing
  - Aerosafety Service Group
  - Central Air Base Group
  - Others

Equipment

JASDF F-15J

JASDF RF-4E at Yokota AB.

JASDF Mitsubishi F-2 at Andersen AFB.

Japan Air Self-Defense Force C-130H

JASDF E-767 AWACS at Komaki AB.

JASDF KC-767J at Komaki AB.

The ASDF maintains an integrated network of radar installations and air defense direction centers throughout the country known as the Basic Air Defense Ground Environment. In the late 1980s, the system was modernized and augmented with E-2C Hawkeye airborne early warning aircraft.

The nation relies on fighter-interceptor aircraft and surface-to-air missiles to intercept hostile aircraft. Both of these systems were improved from the beginning of the late 1980s. Outmoded aircraft were replaced in the early 1990s with more sophisticated models, and Nike-J missiles have been replaced with the modern Patriot PAC-2 system.

The ASDF also provides air support for ground and sea operations of the GSDF and the MSDF and air defense for bases of all the forces. Although support fighter squadrons started being modernized in 1989, they lacked precision-guided weapons for support of ground operations and attacks on hostile ships, and ASDF pilots receive little flight training over oceans to prepare for maritime operations. Base defenses were upgraded in the late 1980s with new surface-to-air missiles, modern antiaircraft artillery and new fixed and mobile aircraft shelters.

They are not allowed to have strategic bombers for that would go against the self defence–only policy.

Aircraft inventory

Aircraft	Origin	Type	Versions	In service^[3]	Notes
Boeing 747	United States	VIP transport (Japanese Air Force One/Two)	747-400	2
Boeing 767	United States	Airborne command and control Airborne refueling	E-767 KC-767J	4 4 ^[4]
Gulfstream IV	United States	VIP transport	U-4	5
Kawasaki C-1	Japan	Tactical transport Electronic warfare Flight test bed	C-1A EC-1 C-1FTB	25 1 1
C-130 Hercules	United States	Tactical transport	C-130H	16
British Aerospace BAe 125	United Kingdom	Flight inspection Search and rescue	U-125 U-125A	3 26
NAMC YS-11	Japan	Transport Flight inspection Navigation Trainer Electronic warfare ELINT	YS-11P YS-11FC YS-11NT YS-11EA YS-11EB	3 1 3 2 4
Grumman E-2 Hawkeye	United States	Airborne early warning	E-2C	13
Fuji T-7	Japan	Trainer		49
Raytheon Hawker 400	United States	Trainer	T-400	13
Kawasaki T-4	Japan	Trainer		208
Mitsubishi H-60	United States Japan	Search and rescue	UH-60J	39	3 UH-60J were built by US and remaining UH-60Js built by Mitsubishi under license.
Kawasaki-Vertol 107	Japan	Search and rescue	KV-107	13
Boeing CH-47 Chinook	United States Japan	Transport helicopter	CH-47J	16	Built by Kawasaki under license.
Mitsubishi F-2	Japan	Fighter Trainer	F-2A F-2B	39 ^[5] 32 ^[5]	Planned 94 + 4 prototype
F-4 Phantom II	United States Japan	Fighter Reconnaissance	F-4EJ F-4EJ kai RF-4E RF-4EJ	1 90 12 15	2 F-4EJ and RF-4s were built by US, remaining F-4EJs by built Mitsubishi under license. RF-4 version being phased out; equivalent number of F-15 to receive synthetic aperture radar pods
F-15 Eagle	United States Japan	Fighter Trainer	F-15J F-15DJ	160 ^[5] 42 ^[5]	2 F-15J's and 12 F-15DJ's were built by US and the rest were built by Mitsubishi under license.

Other equipment

Future equipment

Aircraft	Origin	Type	Versions	Number built	Notes
Mitsubishi ATD-X	Japan	Demo jet fighter	-	-	Production is to start in 2010–2011, with it due to enter service in 2014.^{[citation needed]}
Kawasaki C-X	Japan	Tactical airlift	-	1	Entering service in 2010. It is estimated that 30–50 will be produced.
F-X	-	Fighter	-	-	The Japan Ministry of Defense and JASDF are evaluating the Eurofighter, F-35, F/A-18E/F and F-15FX (a version of the F-15E). A decision has yet to be taken.^[6]

Sources: ^[7] ^[8]

Past equipment

References and notes

^ This article incorporates public domain material from websites or documents of the Library of Congress Country Studies.
^ "Japan Air Self Defense Force". Globalsecurity.org. http://www.globalsecurity.org/military/world/japan/jasdf.htm. Retrieved 2006-04-12.
^ "World Military Aircraft Inventory", Aerospace Source Book 2007, Aviation Week & Space Technology, January 15, 2007.
^ Boeing Delivers 4th KC-767 Tanker to Japan Ministry of Defense, Boeing 12 January 2010.
^ ^a ^b ^c ^d http://www.aviationweek.com/aw/sourcebook/content.jsp?channelName=pro&story=xml/sourcebook_xml/2008/01/28/AW_01_28_2008_p0271-27282-81.xml&headline=World%20Military%20Aircraft%20Inventory%20-%20Japan
^ Japan Likely To Delay F-X Order
^ "Japan Weapons". Globalsecurity.org. http://www.globalsecurity.org/military/world/japan/weapons.htm. Retrieved 2006-04-12.
^ "Japan Air Defence Force". Globalsecurity.org. http://www.globalsecurity.org/military/world/japan/aircraft.htm. Retrieved 2006-08-06.

External links

Japan Air Self-Defense Force (Japanese) (English)

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