Boeing E-767

Updated: October 2026 – A gray twinjet climbs over the coast of Shizuoka, and on its back sits a huge, flat disc: that is a Boeing E-767, the Japanese air force’s flying radar. Only four of this type exist worldwide, all based in Hamamatsu. Here you will learn how the E-767 came about, what sets it apart technically, how to tell it from the E-3 Sentry, KC-767 and others, and where you have realistic chances of a sighting.

What is the Boeing E-767?

The E-767 is an AWACS aircraft – the abbreviation stands for Airborne Warning and Control System. Such aircraft circle at high altitude, monitor a wide area of airspace with a powerful radar and guide friendly jets to targets. For Japan, an island nation with long coastlines and large sea areas, this capability is especially valuable.

Technically, the E-767 is a combination of two well-known Boeing products: the aircraft itself is a Boeing 767-200ER, internally designated 767-27C – “7C” is Boeing’s customer code for the Japan Air Self-Defense Force. The radar and control system comes from the E-3 Sentry, which is based on the much older 707. You can find more about the manufacturer itself on the Boeing page.

Only four aircraft were built. The sole operator is the Japan Air Self-Defense Force (JASDF), which has based all four at Hamamatsu Air Base. That makes the E-767 one of the rarest large aircraft Boeing has ever delivered.

Background: why Japan needed its own AWACS

The impetus was an event from the Cold War: in September 1976 the Soviet pilot Viktor Belenko landed a MiG-25 in Japan unexpectedly. The aircraft had gone unnoticed for a long time at low level – a clear sign of gaps in ground-based radar surveillance. Japan then looked for an airborne early warning system.

At first the large E-3 was also considered, but the choice initially fell on the smaller Grumman E-2C Hawkeye. It entered service in 1987 at Misawa. In the early 1990s the desire grew for a larger platform with more range, longer endurance and room for a larger mission crew. An E-3 on the old 707 airframe was hardly an option anymore, however, because production of that type was coming to an end.

In 1992 Boeing proposed transferring the AWACS system to the 767. The Japan Defense Agency agreed and funded two aircraft each in fiscal years 1993 and 1994. About 113.9 billion yen was budgeted for the first pair and about 108.1 billion yen for the second. For comparison: an E-2C cost around 8.6 billion yen at the time.

The procurement ran in two stages. First the Japanese trading house Itochu bought the unmodified 767 aircraft, and then US and Japanese companies converted them into AWACS aircraft under a US arms export procedure.

First flight, handover and entry into service

The first E-767 made its first flight on October 4, 1994 in Everett, still as a “bare” 767 without a radar dome. Only on August 9, 1996 did an aircraft fly with the complete rotodome. The first two aircraft were handed over in March 1998, the other two in January 1999.

From 1998 the aircraft arrived at Hamamatsu, where a test unit first verified operational readiness. For the much heavier aircraft, the base’s runways had to be strengthened. When exactly the E-767 was considered fully operational is given differently: Japanese sources cite a clearance in March 1999, other accounts May 2000.

The four aircraft carry the serial numbers 64-3501, 64-3502, 74-3503 and 84-3504. In the Japanese system the first digit stands for the year of completion, and the last three digits you often know as a large number on the fuselage or tail (501 to 504). Before handover the aircraft flew with civilian US registrations from N767JA to N767JD.

The unit also changed its name several times. Since 2014 the E-767 squadron has been called the 602nd Squadron (602 Hikōtai) and belongs to the JASDF’s early warning wing, which also includes the E-2 squadrons at Misawa and Naha.

Technology: 767 meets AWACS

From the outside the E-767 is clearly a 767, but inside it is a completely different aircraft. The key points:

• Radar: Under the dome works a Northrop Grumman AN/APY-2, a three-dimensional pulse-Doppler radar. At operating altitude it detects targets at more than 320 kilometers, all-round.
• Rotodome: The dome is about 9.1 meters in diameter and about 1.8 meters thick in the middle. In operation it rotates about six times a minute. It also houses the antenna for the identification friend or foe system (IFF).
• Cabin: Compared with the E-3, the 767 offers about one and a half times as much floor area and about twice the volume. So there is plenty of room for consoles, rest areas and systems.
• Engines and power: Two General Electric CF6-80C2 engines of about 274 kN thrust each. Because radar and electronics need a lot of power, the generators were upgraded from 90 to 150 kW.
• Windows: Apart from the cockpit and the emergency exits, the side fuselage windows are blocked off.
• Aerial refueling: According to Japanese sources, lines for aerial refueling are prepared, but the receptacle itself was not installed for cost reasons.

With a range of about 10,370 kilometers and mission times of about 13 hours at about 550 kilometers from base (without aerial refueling), the E-767 can stay on station for a very long time. Cruising speed is about 850 km/h.

Upgrades since entering service

Because the E-767 uses the same radar as the E-3, it follows its upgrades with some delay:

• Radar improvement (RSIP): Following the example of the E-3’s Radar System Improvement Program, Boeing received a contract in November 2006 worth about 108 million US dollars for upgrade kits for all four aircraft. These included a new radar computer and improved sensitivity. Depending on the source, the upgrade was complete around 2010 to 2012.
• Major capability upgrade: From fiscal year 2013 a program ran, similar to the E-3’s later upgrades – with a new central computer and additional sensors for electronic support. A 2013 US export notification put its total value at about 950 million US dollars.
• Mission computers: In 2018 a further US contract followed, worth about 61 million US dollars, for installing new mission computers.

From the outside these works are practically invisible. For spotters the E-767 therefore stays almost unchanged over the years – gray, with a large dome on its back.

How to identify the E-767

Identifying an E-767 is easy once you see a radar dome. Three steps are enough.

General tips on identifying early warning and surveillance aircraft are in the article Identifying AWACS, maritime patrol and surveillance aircraft. How to separate the civilian 767 from the similar 757 is explained in Telling the Boeing 757 and 767 apart.

The E-767 and its look-alikes

The E-767 shares its platform or radar with several types. The finder helps you narrow it down.

Feature	E-767	E-3 Sentry	E-7 Wedgetail	KC-767
Base aircraft	767-200ER	707-320	737-700	767-200ER
Engines	2	4	2	2
Radar	round dome	round dome	flat blade	none
Refueling boom	no	no	no	yes
Operators	Japan only	USA, NATO, France and others	Australia and others	Japan, Italy and others

The biggest risk of confusion is with the E-3 Sentry, because the radar dome looks nearly identical. The number of engines settles it immediately. The E-7 Wedgetail is Boeing’s younger early warning aircraft with a fixed, elongated radar blade on a 737. And the KC-767 and the KC-46 Pegasus share the 767 platform but carry a refueling boom instead of radar.

Operations and exercises

The E-767’s main mission is monitoring Japanese airspace and the surrounding sea areas. Together with ground-based radars and the E-2 early warning aircraft, it builds an air picture and supports interceptions by Japanese fighter jets.

Outside Japan the E-767 appears mainly at international exercises. The 602nd Squadron took part in the Cope North exercise, which takes place in the Pacific region, in 2001 and 2003. At Red Flag Alaska the E-767 took part in 2008, 2009, 2012, 2014 and 2015, among others. On such deployments it lands at US bases in Alaska or Guam – for spotters on site one of the rare opportunities outside Japan.

Where to see the E-767

The honest answer: almost only in Japan. All four aircraft are based at Hamamatsu Air Base (ICAO code RJNH), about five kilometers north of the city of Hamamatsu in Shizuoka Prefecture. The base has a runway about 2,550 meters long and is also home to training squadrons with the Kawasaki T-4.

Place	Chance of a hit	Why
Hamamatsu Air Base, Japan	high	Home base of all four E-767s
Air shows in Hamamatsu	good	E-767 was seen in a flyover there in 2018, for example
US bases in Alaska and Guam	occasional	Participation in exercises such as Red Flag Alaska and Cope North
Europe	very low	no regular deployments known

Right at the base is the Hamamatsu Kōhōkan, a JASDF museum that has shown numerous Japanese air force aircraft since 1999. There is no E-767 there, but a visit combines well with spotting at the field. At the base’s air show, the E-767 was seen in a flyover in 2018, for example. Whether it will be there again next time, when the air show takes place and what the program looks like, you are best off checking at short notice on the official sites.

If you are traveling to Japan anyway, combine Hamamatsu with a spotting trip to Tokyo. Plane spotting in Tokyo offers ideas, such as the observation decks at Tokyo Haneda Airport or Sakura no Yama in Narita. Hamamatsu lies on the Shinkansen line between Tokyo and Nagoya and is thus easy to reach from both cities.

If you want to get an AWACS in front of your lens in Europe, it is much easier with NATO’s E-3: the Teveren spotters’ hill at Geilenkirchen air base is the first address for that, with background in Plane spotting in Geilenkirchen. How to follow military traffic live and why many aircraft only appear on the radar at times is shown in Tracking military aircraft online. Serial numbers and units of military aircraft can also be looked up through databases like Scramble.

Photo tips for the airshow and the fence

The E-767 is not a fast subject, but a big and distinctive one. A few points help:

• Look for the side profile: Dome, struts and 767 fuselage look best in profile. A flyover parallel to the spectator line at an air show is ideal for this.
• Keep an eye on exposure: A gray fuselage against a bright sky quickly turns out too dark. A slight upward exposure correction helps.
• Capture the serial number: With only four aircraft, each one is a collectible of its own. Make sure the number stays legible in the frame.
• Plan the light: When the sun suits your vantage point is explained in the guide Planning the sun position for your photo spot.

How to get the most out of an air show is in Photographing airshows.

Common mix-ups and how to rule them out

Conclusion

The E-767 is one of a kind: a civilian long-haul twin onto which Boeing put the proven AWACS system of the E-3 – tailor-made for a single country. With only four examples it is one of the greatest rarities in Boeing’s lineup, and because it flies almost exclusively over Japan, a sighting takes planning and a bit of wanderlust.