Misawa Air Base
Active (shared with the Japan Air Self-Defense Force and a civil terminal)
Service badgeUnited States Air Force
Major commandPacific Air ForcesMisawa Air Base: what it was built for and what flies there now
Misawa is in northern Honshu, a joint installation shared by the USAF, the Japan Air Self-Defense Force, the US Navy and a civil terminal — an unusual arrangement that reflects how tightly American and Japanese air operations are woven together. The Japanese Navy used the field to rehearse the Pearl Harbor attack in 1941; the Americans took it over in 1945. During the Cold War Misawa was best known for the enormous AN/FLR-9 "elephant cage" direction-finding antenna on the nearby Security Hill, a signals intelligence site aimed at the Soviet Far East, and for the F-16s that arrived in 1985.
The 35th Fighter Wing flies two squadrons of Block 50 F-16CM aircraft specialising in the suppression of enemy air defences, the same mission as Spangdahlem. Air Force plans announced in 2024 involve replacing the Misawa F-16 force with F-35As later this decade; the timetable has moved more than once and should be treated as intended rather than settled.
Misawa from above
Click to enlarge
Bringing the F-35 to Misawa underscores our long-standing commitment to Japan and the region. For F-16 fighters to resume flights without any explanation to the prefecture is regrettable.
Misawa Air Base in numbers
Location & codes
- ICAO
- RJSM
- Country
- United States
- State
- Japan
- Coordinates
- 40.7053 N, 141.3719 E
- Elevation
- 36 m (118 ft)
- Usage
- Military
Runways & facilities
- Runways
- 1
- Designator
- 10/28
- Length
- 3,050 m (10,007 ft)
- Surface
- Asphalt/concrete
- Quick Reaction Alert
- None
Command & status
- Status
- Activeshared with the Japan Air Self-Defense Force and a civil terminal
- Operator
- United States Air Force
- Opened
- 1938
- Military use ended
- —
- Command
- 35th Fighter Wing
- Resident units
- 3 current, 0 former
- Based types
- 3
Who flies from Misawa Air Base
- 35th Fighter WingFighter wing · active · from 1994
- F-35A Lightning II, F-16CM/DM Block 50 Fighting Falcon
- 13th Fighter SquadronPanthers · Fighter squadron · active · from 1994
- F-35A Lightning II
- 14th Fighter SquadronSamurais · Fighter squadron · active · from 1994
- F-16CM/DM Fighting Falcon
Aircraft types based here
F-35A Lightning II, F-16CM/DM Block 50 Fighting Falcon, F-16CM/DM Fighting Falcon
What Misawa is known for
The Pacific’s Wild Weasels
Misawa is the Air Force’s forward Wild Weasel base: its fighters exist to find enemy surface-to-air missile radars, bait them into switching on, and destroy them so that everything behind can get through. The wing calls itself the Air Force’s premier Wild Weasel organisation, and it has carried the job in the western Pacific since the mid-1990s.
The tail flash changed from MJ to WW on 18 June 1996, and the wing’s history records the 13th Fighter Squadron firing the first combat AGM-88 HARM from an F-16CJ on 27 September 1996.
The only combined, joint service installation in the Western Pacific
That is the Air Force’s own phrase for Misawa, and it is meant literally. Air Force, Navy, Army and Marine Corps units work on the same field as the Japan Air Self-Defense Force, and a civilian airline terminal sits on the same runway. No other American installation west of Hawaii puts all of that inside one fence line.
All four United States armed services staff the Misawa Security Operations Center under a single roof, alongside a Japanese air wing and a commercial terminal on one 10,000-foot runway.
The elephant cage
For half a century the skyline north of the flightline was dominated by an AN/FLR-9 circularly disposed antenna array, three concentric rings of steel that local people nicknamed the elephant cage and treated as a good-luck landmark. It listened to high-frequency radio across the northern Pacific and fed the intelligence centre on Security Hill.
Built 1963–65 for about 3.3 million dollars, 137 feet tall, able to fix transmissions out to roughly 4,000 nautical miles; demolition began on 15 October 2013 after 48 years.
A fighter base with an airline gate
Passengers check in for Tokyo, Osaka and Sapporo at a Japanese civil terminal that shares the runway with American fighters and Japanese interceptors. Scheduled flying started here in 1953, stopped in 1965, and came back in 1975. It is an unusual arrangement anywhere and an especially unusual one on a front-line combat base.
Misawa Airport handled 336,869 passengers and 3,986 aircraft movements in 2024, on scheduled services to Tokyo Haneda, Osaka Itami and Sapporo Okadama.
Where the first non-stop Pacific flight began
In October 1931 Clyde Pangborn and Hugh Herndon Jr. lifted a Bellanca monoplane off Sabishiro Beach, the sand a few miles from the present runway, and flew it without stopping to Washington State. Misawa and Wenatchee have been sister cities ever since, and a replica of the aircraft sits in the town’s aviation museum.
The 41-hour flight won a 25,000-dollar prize offered by the Asahi Shimbun for the first non-stop crossing of the Pacific.
Rebuilt from ninety per cent rubble
Misawa ended the Second World War as wreckage. United States Navy carrier aircraft worked the field over in the last days of the war, and what the Americans occupied a month later had to be rebuilt almost from nothing. Every building on the base today stands on ground that was cleared twice.
On 8 and 9 August 1945 about 30 United States Navy carrier aircraft destroyed 45 aircraft on the ground and roughly 90 per cent of the base.
The long version
01A beach, a record flight and a naval air groupRead
In October 1931 two Americans, Clyde Pangborn and Hugh Herndon Jr., dragged a Bellanca monoplane off Sabishiro Beach, the strip of sand a few miles east of the present runway, and flew it without stopping to Wenatchee, Washington. It was the first non-stop flight across the Pacific, and it won a 25,000-dollar prize offered by the Asahi Shimbun. The 35th Fighter Wing’s own history dates the departure to 4 October 1931; the American memorial foundation dates it to 3 October, because the two ends of the flight lay on opposite sides of the date line.
Military flying came eight years later. The Imperial Japanese Naval Air Force began cutting a runway out of the same sand on 1 September 1939, and the first aircraft to land at Misawa, in March 1942, was a G4M “Betty” bomber. The field was laid out for long-range bombers but ended up a training and aeronautical research station, with Lake Ogawara next door used as a seaplane training water. On 7 August 1942 the Misawa Air Group flew its G4M1s south to Rabaul against the American landings at Guadalcanal, and lost most of them within days.
Pacific Air Forces states plainly that Imperial Japanese Navy units at Misawa used Lake Ogawara to practise for the attack on Pearl Harbor. By September 1944 one of the units on the field had been designated a training division for kamikaze crews, and the roughly 50 pilots of Misawa’s only kamikaze unit went south to Kyushu in June 1945; close to half of them did not survive the war. On 8 and 9 August 1945 about 30 United States Navy carrier aircraft destroyed 45 aircraft on the ground and roughly 90 per cent of the base.
02Occupation, Korea and the air defence of northern JapanRead
American troops reached the wrecked field on 15 September 1945 under Captain Davis K. Stark of the 32nd Army Engineering Construction Group, and spent that first Christmas rebuilding it. Japan completed the transfer of the property on 5 September 1946. The 49th Fighter Group brought F-51 Mustangs in 1948. Eight different organisations took turns as host unit over the next two decades, which is why Misawa’s lineage reads less like a single base history than a relay race between commands that each wanted the northern end of Honshu for a different reason.
The Korean War turned the place into a workshop. On 28 September 1950 the 49th Fighter-Bomber Group fitted its F-80s with an enlarged drop tank that the Air Force went on calling the “Misawa tank”, because a standard tank did not give an early jet the range to reach Korea and still fight when it arrived. The 39th Air Division stood up on 1 March 1952 to run the air defence of northern Honshu and Hokkaido, and after a shoot-down in 1954 it began escorting American reconnaissance aircraft flying near Soviet territory.
Nuclear weapons were part of that posture, and the record is thin on purpose. The Eisenhower administration approved moving the non-nuclear components of atomic bombs to bases in Japan in December 1954; those components stayed until June 1965, and the precise circumstances of the withdrawal remain classified. A declassified Far East Command procedure of 1956–57 lists Misawa among the nuclear-capable base locations. The fissile cores were held elsewhere, which allowed both governments to say that no complete weapon sat on Japanese soil — a distinction Japanese critics have called a semantic technicality.
03Security Hill and the elephant cageRead
The listening station on the rise north of the flightline is older than the fighter wing and outlived most of its own equipment. Its landmark was the AN/FLR-9, a circularly disposed antenna array built between 1963 and 1965 by the Nishimatsu Construction Company for about 3.3 million dollars: three concentric rings of elements, 137 feet tall, able to intercept and fix high-frequency radio transmissions out to roughly 4,000 nautical miles. Local people called it the elephant cage and, according to the Air Force’s own account of its demolition, treated it as a symbol of luck.
What it fed was the Misawa Security Operations Center, the one place in the Western Pacific where all four American services work the same intelligence problem inside one building: the 373rd Intelligence Group, Naval Information Operations Command Misawa, the 403rd Military Intelligence Detachment and a Marine Corps detachment. The Navy activated its security group at Misawa in July 1971, and for years it was the longest continuously serving American unit on the base. The 373rd Intelligence Group activated on 7 September 2000.
Technology and money ended the array rather than any change in the mission. Demolition began on 15 October 2013 after 48 years of service, and the teardown became a local employment programme in its own right: the work put about 4.97 million dollars into the Japanese economy and employed more than 250 Japanese workers, with completion set for September 2015. The matching array on Okinawa had already closed in 2007. The last surviving example of the type stands at Joint Base Elmendorf-Richardson in Alaska.
04How Misawa became a Wild Weasel baseRead
Misawa’s fighter era restarted on 2 April 1985, when the first F-16 trainer landed with Colonel Michael E. Ryan at the controls — a future Chief of Staff of the Air Force delivering the first of a type the base would fly for four decades. The 13th Tactical Fighter Squadron activated on 1 June 1985 and the 14th on 1 January 1987, both under the 432nd Tactical Fighter Wing, which had held the field since Pacific Air Forces returned to Misawa in 1978.
The 35th Fighter Wing replaced the 432nd on 1 October 1994, bringing a lineage with aerial victories in the Second World War, Korea and Vietnam. Conversion to the F-16CJ finished on 17 September 1995. On 18 June 1996 the tail flash changed from MJ to WW — Wild Weasel — and the wing’s history records the 13th Fighter Squadron firing the first combat AGM-88 HARM launched from an F-16CJ on 27 September 1996, in the operations over Iraq that followed Operation Desert Strike.
The mission then went to work for a decade. F-16CJs from Misawa flew Operation Southern Watch and Operation Northern Watch over Iraq through the late 1990s, and on 21 March 2003 the 14th Fighter Squadron flew the first non-stealth missions of Operation Iraqi Freedom and fired that operation’s first HARMs. Weapons training happens at Draughon Range about 12 miles north of the base, held by American forces since 6 June 1949 and renamed in April 2003 for Petty Officer Matthew Draughon, a Navy diver lost in 2001.
05Sharing a runway with an airline and a prefectureRead
The Air Force’s own fact sheet calls Misawa “the only combined, joint service installation in the Western Pacific”. The runway is shared three ways: the 35th Fighter Wing, the Japan Air Self-Defense Force’s 3rd Air Wing, and a civil terminal operated by Misawa Airport Terminal Co., Ltd. under Japan’s transport ministry. Scheduled civil flying began on 19 January 1953, stopped in 1965, and resumed on 10 May 1975 with a new terminal that was rebuilt and enlarged in 1986.
The civil side is small but real — 336,869 passengers and 3,986 aircraft movements in 2024, on services to Tokyo Haneda, Osaka Itami and Sapporo Okadama — and the arrangement is not frictionless. When a United States Air Force B-1B Lancer made an emergency landing on 29 April 2025 the airport shut for about 90 minutes, a Haneda service turned back with its return flight cancelled, and both Misawa city and Aomori prefecture protested, noting that they had asked for civil stability measures eleven days earlier.
Outside the fence the economy is fishing and farming. Lake Ogawara is a working shellfish water, and when something from the base lands in it the money that follows is Japanese: the Status of Forces Agreement and Japan’s host nation support package route compensation through Tokyo rather than Washington. Under the special measures agreement signed in December 2021 and running five years from April 2022, Japan committed about 1.06 trillion yen — roughly 9.33 billion dollars — to the upkeep of United States forces in the country.
06The earthquake, and the aircraft that replaced the F-16Read
The magnitude 9.0 earthquake of 11 March 2011 shook Misawa violently and left it with minor damage and a blackout; the tsunami that wrecked Hachinohe’s waterfront and the coast to the south spared the base itself. Its emergency operations centre happened to be manned for a readiness exercise when the ground moved, which is why damage reports came in fast. Within days Misawa was a forward operating base for American and Japanese relief forces and took in 14 helicopters for distribution flights.
The nuclear emergency at Fukushima Daiichi did what the earthquake had not. The Department of Defense authorised voluntary departure, and between 9,000 and 10,000 family members left Japan, about 7,800 of them on military-funded orders. The first chartered flight bringing Misawa families home landed on 22 April 2011 with more than 150 passengers aboard. Across the whole of Operation Tomodachi the Department of Defense committed 88.5 million dollars, about 24,000 personnel, 189 aircraft and 24 ships.
The change now under way is the aircraft. The Pentagon announced on 3 July 2024 that Misawa’s 36 F-16s would give way to 48 F-35As, the first American F-35s permanently based in the Indo-Pacific and only the second such basing outside the United States after RAF Lakenheath. Upgraded Misawa F-16s moved to Osan in South Korea in late June 2025; the first F-35As landed on 28 March 2026 for the 13th Fighter Squadron, and the wing unveiled the fleet on 24 April 2026.
Misawa, year by year
Pangborn and Herndon take off from Sabishiro Beach beside the future base and fly non-stop to Washington State, the first crossing of the Pacific without a landing.
The Imperial Japanese Naval Air Force begins cutting a runway out of the sand at Misawa on 1 September.
The Misawa Air Group takes its G4M1 bombers to Rabaul on 7 August against the American landings at Guadalcanal, and is largely destroyed within days.
About 30 United States Navy carrier aircraft attack on 8 and 9 August, destroying 45 aircraft and roughly 90 per cent of the base.
American troops under Captain Davis K. Stark occupy the wrecked field on 15 September and begin rebuilding it.
The 49th Fighter-Bomber Group develops the enlarged “Misawa tank” on 28 September so F-80s can reach Korea and still fight.
The 39th Air Division activates on 1 March to run the air defence of northern Honshu and Hokkaido.
Civil airline flying begins at Misawa on 19 January, putting a commercial terminal on a military runway.
The Japan Air Self-Defense Force stands up the 9001st Aircraft Control and Warning Group on 1 October, the first Japanese military unit at Misawa since the war.
The AN/FLR-9 antenna array, begun in 1963, is completed on Security Hill for about 3.3 million dollars.
The Navy commissions Naval Air Facility Misawa on 1 October; scheduled civil flights resume on 10 May after a ten-year gap.
The first F-16 arrives on 2 April flown by Colonel Michael E. Ryan; the 13th Tactical Fighter Squadron activates on 1 June.
The 35th Fighter Wing replaces the 432nd Fighter Wing as host unit on 1 October.
The tail flash changes from MJ to WW on 18 June, marking the wing’s Wild Weasel role.
The 14th Fighter Squadron flies the first non-stealth missions of Operation Iraqi Freedom on 21 March and fires the operation’s first HARMs.
The magnitude 9.0 Tohoku earthquake of 11 March leaves the base with minor damage; Misawa becomes a forward operating base for relief flights.
Demolition of the elephant cage begins on 15 October after 48 years of service.
The first permanently based American F-35As land at Misawa on 28 March for the 13th Fighter Squadron; the wing unveils the fleet on 24 April.
What happened here
The base is destroyed from the air
In the last week of the Pacific War about 30 United States Navy carrier aircraft attacked Misawa, destroying 45 aircraft on the ground and roughly 90 per cent of the installation. The 35th Fighter Wing’s own heritage account places American carrier strikes on the field in both July and August 1945 and describes the same scale of destruction. Japan announced its surrender six days later, and the Americans who occupied the field on 15 September found a base that had to be rebuilt almost entirely before it could be used again.
The Misawa town fire
A fire tore through the town beside the base, destroying 434 buildings across about 17 acres and displacing roughly 5,000 people. More than 2,000 American personnel and some 350 Japan Self-Defense Force members turned out to fight it. It remains one of the clearest illustrations of how tightly the base and the town are bound together. Misawa city today has only about 42,000 residents, and in 1966 the nearest source of trucks, pumps and manpower on that scale was the American installation on the other side of the fence.
An F-16 fails to get airborne and hits the localiser array
An F-16C of the 14th Fighter Squadron, serial 90-0804, aborted its take-off and ran off the east end of the runway into the localiser antenna array, where it caught fire. First Lieutenant Melvin Brice Simpson ejected but came down in the burning wreckage and was very badly burned. He died of his injuries on 17 September 1998 at Brooke Army Medical Center in San Antonio, Texas. Sources differ on the date of the crash: accident databases give 24 July, while some published accounts give 25 July.
Ejection into the north Pacific
An F-16C of the 14th Fighter Squadron flying from Misawa towards Alaska for an exercise lost thrust that the pilot could not restore, and he ejected roughly 250 miles north-east of Hokkaido. American and Japanese military and civilian vessels recovered him on 22 July, uninjured and in stable condition aboard a commercial ship. The Accident Investigation Board found by clear and convincing evidence that the cause was an uncommanded closure of the main fuel shutoff valve. The aircraft was destroyed; there was no other property damage and no civilian injury.
Two fuel tanks into a shellfish lake
An F-16CM of the 13th Fighter Squadron, serial 92-3883, suffered an engine fire on take-off — controllers reported a flame twenty to thirty feet long — and the pilot jettisoned both external tanks into Lake Ogawara before landing safely. The board put the damage at 987,545.57 dollars and traced it to an obsolete turbine frame fairing wrongly refitted during engine maintenance in 2012. The Lake Ogawara fishing association banned fishing the same day; the season’s shellfish losses were put at up to 37,000 dollars a day, and fishermen later sought 93 million yen in compensation.
A Japanese F-35A is lost in the sea off Misawa
A Japan Air Self-Defense Force F-35A from the 3rd Air Wing at Misawa went into the Pacific about 85 miles east of the base during a night training flight, killing Major Akinori Hosomi. Flight data showed the aircraft descending 16,000 feet in 20 seconds and a further 14,500 feet in 15 seconds, with no engine, electrical or control failure and no ejection attempt. Investigators concluded the pilot most likely suffered spatial disorientation. Some accounts give the date as 3 April; contemporaneous reporting and the Japanese investigation place it on 9 April 2019.
An inert bomb on private land
An F-16CM of the 14th Fighter Squadron released an inert GBU-12 about 3.4 miles from the cleared target inside Draughon Range, and it came down on private property near Lake Ogawara, roughly three miles from the base. Nobody was hurt and nothing was damaged, but Japanese authorities were not told until the following day. Defence Minister Taro Kono said Japan had issued a severe protest; Aomori governor Shingo Mimura warned it would amplify distrust. The board found pilot error in an assisted weapons delivery, with channelised attention and weather as factors.
Fuel tanks fall on Fukaura
An F-16 from Misawa lost hydraulic pressure and jettisoned two external tanks over Fukaura, a coastal town about 100 miles west of the base, before diverting into Aomori Airport. Aluminium debris some three and a half feet long was found by a roadside near scattered houses and the town hall, and a pavement handrail was damaged; nobody was hurt. Defence Minister Nobuo Kishi asked the United States to ground its F-16s until their safety was confirmed. The wing resumed flying two days later, which Aomori prefecture called regrettable.
Misawa Air Base and its neighbours
| Nearby base | ICAO | Status | Based types |
|---|---|---|---|
| Kadena Air Base | RODN | Active | KC-135R Stratotanker, E-3B/C Sentry, HH-60G Pave Hawk, HH-60W Jolly Green II |
| Yokota Air Base | RJTY | Active | C-130J Super Hercules, C-12J Huron, UH-1N Iroquois, CV-22B Osprey |
Everything people ask about Misawa Air Base
Why do Misawa’s fighters wear WW on the tail?
Is Misawa really a civilian airport as well as an air base?
What was the elephant cage?
Did the Imperial Japanese Navy really rehearse Pearl Harbor here?
What happened to Misawa in the 2011 earthquake and tsunami?
Who else flies from Misawa besides the United States Air Force?
Have aircraft been lost flying from Misawa?
Who pays when something from the base falls on a Japanese town?
Is Misawa Air Base still an active military air base?
What is the ICAO code of Misawa Air Base?
How long is the runway at Misawa Air Base?
Which squadrons are based at Misawa Air Base?
MiGFlug flies the L-39 Albatros out of Florida — the same jet trainer that taught most of the air forces on the other side of the Cold War, in a real second seat with aerobatics and time on the controls.You cannot fly from this base. You can fly the jet.
Around Misawa Air Base
Every fact, checked
Verified 2026-09-13.