E-767
Boeing E-767 AWACS aircraft of the JASDF
Type	Airborne Early Warning and Control (AEW&C)
Manufacturer	Boeing IDS
Status	In service
Primary user	Japan Air Self-Defense Force
Number built	4
Developed from	Boeing 767

The Boeing E-767 is an Airborne Early Warning and Control aircraft. An aerospace manufacturer is a company or individual involved in the various aspects of designing building testing selling and maintaining Aircraft, Aircraft parts Boeing Integrated Defense Systems ( Boeing IDS) based in St Louis, Missouri, USA, is a unit of The Boeing Company responsible for The, or JASDF, is the Aviation branch of the Japan Self-Defense Forces responsible for the defense of Japanese Airspace and other aerospace WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout Boeing Integrated Defense Systems ( Boeing IDS) based in St Louis, Missouri, USA, is a unit of The Boeing Company responsible for It was designed in response for the Japan Air Self-Defense Force's requirements, and is essentially the E-3 Sentry mission package on a Boeing 767-200 platform. The, or JASDF, is the Aviation branch of the Japan Self-Defense Forces responsible for the defense of Japanese Airspace and other aerospace WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout

Contents 1 Development 1.1 Background 1.2 Procurement 2 Design 2.1 External features 2.2 Powerplants 2.3 Airborne early warning and control system 2.4 Radar System Improvement Program 3 Operational service 4 Operators 5 Specifications (E-767) 6 See also 7 References 8 External links

Development

Background

On September 6, 1976, Russian Air Force pilot Victor Belenko successfully defected to the West, flying his MiG-25 'Foxbat' to Hakodate, Japan. Events 3114 BC - According to the Proleptic Julian calendar the current era in the Maya Long Count Calendar started Year 1976 ( MCMLXXVI) was a Leap year starting on Thursday (link will display full calendar of the Gregorian calendar. Viktor Ivanovich Belenko (Виктор Иванович Беленко (born February 15, 1947) is an American Aerospace Engineer and Lecturer WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout is a city and port located in Oshima, Hokkaidō, Japan. It is the capital city of Oshima Subprefecture During this incident, Japan Self-Defense Force radar lost track of the aircraft when he flew his MiG-25 at a low altitude, which prompted the Japan Air Self-Defense Force (JASDF) to consider procurement of airborne early warning aircraft.

In 1976, the United States Air Force was about to deploy E-3 Sentry airborne warning and control system aircraft, which was considered to be the prime candidate for the airborne early warning mission by JASDF. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout However, the Japan Defense Agency (JDA, now Ministry of Defense) realized that the E-3 would not be readily available due to the needs of USAF and opted to procure the E-2 Hawkeye instead. The is one of Cabinet -level ministries of the Japanese government. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout ^[1] The E-2C was put into service with the Airborne Early Warning Group (AEWG) at JASDF Misawa Air Base in January 1987. For the civilian use of this facility see Misawa Airport is a United States military facility located adjacent to the city of Misawa

In 1991, the JDA requested funds to upgrade the airborne early warning system procuring the E-3. Unfortunately, production of the Boeing 707-based E-3 airframe had ended in 1991 and the plan was shelved. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout The following year, Boeing proposed a 767-based AWACS, and the JDA agreed to procure two E-767 in fiscal year 1993 and two more in fiscal year 1994. ^[2]

Procurement

JDA requested a budget of JPY113. 9 billion to procure two E-767s in fiscal year 1993 and JPY108. 1 billion for two more E-767s in FY 1994. ^[2] This large budget compared to approximately JPY8. 6 billion for the E-2C and an estimated JPY29. 6 billion for the E-3A was politically rationalized as a means to help ease the tension over Japan's large trade surplus against the U. S. In addition, Japanese aerospace companies are responsible for 15% of the airframe production for the 767, meaning some of the money would indirectly come back to Japan.

The procurement of E-767 by Japanese government was split into two stages. The first stage was the procurement of an unmodified 767 aircraft by the Japanese government through a trading company, Itochu Corporation. until 1992 "C Itoh" in English is a Japanese general trading concern based in Chūō-ku Osaka and Minato Tokyo. In the second stage, the aircraft were modified to carry AWACS equipment by the U. S. government under foreign military sales rules.

Design

Due to the sensitivity of the AWACS mission, description of mission equipment is limited.

The base airframe for E-767 is that of a 767-200ER, Boeing designation 767-27C. (The "7C" designation indicates the aircraft was originally delivered to the Japanese government. ) The E-767 offers 50 percent more floor space and nearly twice the volume of the E-3. ^[3] Mission equipment is installed in forward cabin to balance the weight with the rotodome on the aft fuselage. The aft cabin contains the crew rest area, galley and lavatory.

External features

The E-767's exterior is painted in gray. The windows are removed in order to protect the crew and equipment from intense radio frequency emission from its radio equipment. A rotodome 30 feet (9. 14 meters) in diameter and 6 feet (1. 83 m) thick at the center is mounted above the aft fuselage on two struts. The rotodome rotates at 6 rpm during operations and at 0. 25 rpm to lubricate the rotation mechanisms even when the radar is not used.

There are numerous blade antennae for UHF and VHF communication along the centerline of the fuselage on the top and bottom. There is a rod antenna at each wing tip for HF communication. A fairing in the aft fuselage contains an antenna for JTIDS (Joint Tactical Information Distribution System). The Joint Tactical Information Distribution System (JTIDS is an L band TDMA network radio system used by the United States armed forces and their allies

Powerplants

Two General Electric CF6-80C2B6FA high bypass turbofan engines, 61,500 pounds thrust each. The original 90 kVA generator in each engine was replaced with two 150 kVA generators to provide electric power to the radar and other equipment. A volt-ampere in electrical terms means the amount of Apparent power in an Alternating current circuit equal to a current of one Ampere at an ^[4]

Airborne early warning and control system

The system on E-767 is essentially the same as the late E-3 models, using Northrop Grumman's (formerly Westinghouse Electronic Systems) AN/APY-2 radar system. Northrop Grumman Corporation ( is an Aerospace and defense technology company formed by the 1994 purchase of Grumman by Northrop. This system is a three dimensional radar that measures azimuth, range, and elevation simultaneously, and has superior surveillance capability over water compared to the AN/APY-1 system on the earlier E-3 models. 3D radar provides for Radar coverage on three dimensions unlike the more common 2D radar. ^[5]

The AN/APY-2 is a pulse-doppler radar that can determine the velocity of a tracked target. Pulse-Doppler is a Radar system capable of not only detecting target location (bearing range and altitude but also measuring its radial velocity (range-rate This surveillance system includes a flexible, multi-mode radar, which enables AWACS to separate maritime and airborne targets from ground and sea clutter returns that limit other modern radar systems.

Its radar has a 360-degree view, and at operating altitudes it can detect targets more than 320 kilometers (200 miles) away. AWACS mission equipment can separate, manage and display these targets individually on situational displays. ^[6]

AN/APY-2's antenna and Identification Friend or Foe (IFF) Mk XII system's antenna are housed in the rotodome back to back. In Telecommunications, identification friend or foe (IFF is a Cryptographic identification System designed for command and control

The information acquired by the radar system is processed by IBM's CC-2E central computer conformed to E-3 Block 30/35 Modification and can be displayed on the 14 displays onboard.

Other major subsystems in the E-767 are identification, tactical data link, and navigation.

Radar System Improvement Program

In November 2006, Boeing was awarded a $108 million contract to deliver Radar System Improvement Program (RSIP) kits to Japan's fleet of four E-767 Airborne Warning and Control System (AWACS) aircraft.

The Foreign Military Sale was contracted through the Electronic Systems Center at Hanscom Air Force Base, Mass. The sale also includes spare and repair parts, support equipment and technical documentation. Electronic Systems Center is a product center of Air Force Materiel Command (AFMC headquartered at Hanscom Air Force Base, Massachusetts. For the civil airport use of this facility see Hanscom Field Hanscom Air Force Base is a United States Air Force base located 5 mi SSW of Bedford The Commonwealth of Massachusetts ( is a state located in the New England region of the northeastern United States. Installation of the kits will occur during a follow-on contract.

RSIP increases the AWACS aircraft's radar sensitivity, allowing it to detect and track smaller targets. It also improves the radar's existing computer with a new high-reliability multi-processor and rewrites the software to facilitate future maintenance and enhancements.

The RSIP kit, built principally by Northrop Grumman Electronic Systems, Baltimore, MD, under a subcontract to Boeing, consists of a new radar computer, a radar control maintenance panel as well as software upgrades to the radar and mission system programs. ^[7]

Operational service

The first E-767 made the first flight on October 4, 1994 at Paine Field, Wash. First flight with the rotodome installed occurred on August 9, 1996 and it was delivered to JASDF in March 11, 1998 along with the second E-767. Events 610 - Heraclius arrives by ship from Africa at Constantinople, overthrows Byzantine Emperor Phocas Year 1994 ( MCMXCIV) was a Common year starting on Saturday (link will display full 1994 Gregorian calendar) Paine Field, also known as Snohomish County Airport is located between Mukilteo, Washington and Everett, Washington. Washington ( is a state in the Pacific Northwest region of the United States. Events 48 BC - Caesar's civil war: Battle of Pharsalus - Julius Caesar decisively defeats Pompey at Pharsalus Year 1996 ( MCMXCVI) was a Leap year starting on Monday (link will display full 1996 Gregorian calendar) Events 1425 BC - Thutmose III, Pharaoh of Egypt, dies (according to the Low Chronology of the 18th Dynasty Year 1998 ( MCMXCVIII) was a Common year starting on Thursday (link will display full 1998 Gregorian calendar) ^[8] Aircraft No. 3 and No. 4 were delivered on January 5, 1999. Events 1477 - Battle of Nancy: Charles the Bold is killed and Burgundy becomes part of France. Year 1999 ( MCMXCIX) was a Common year starting on Friday (link will display full 1999 Gregorian calendar) On May 10, 2000, all four E-767s were put into service with Airborne Early Warning Group (AEWG) 601st squadron and operated by airborne warning and control squadron crew at JASDF Hamamatsu Airbase. Events 1291 - Scottish Nobles recognize the authority of Edward I of England. 2000 ( MM) was a Leap year that started on Saturday of the Common Era, in accordance with the Gregorian calendar. (Hamamatsu Airbase's runway needed to be reinforced to accommodate the E-767. ) On March 31, 2005, the two squadrons were merged and became AEWG airborne warning and control squadron (Hamamatsu). Events 307 - After divorcing his wife Minervina, Constantine marries Fausta, the daughter of the retired Roman Emperor Year 2005 ( MMV) was a Common year starting on Saturday (link displays full calendar of the Gregorian calendar.

Operators

 Japan

• Japan Air Self-Defense Force operates four E-767. For a topic outline on this subject see List of basic Japan topics. The, or JASDF, is the Aviation branch of the Japan Self-Defense Forces responsible for the defense of Japanese Airspace and other aerospace

Specifications (E-767)

Data from 767 AWACS^[9] B767-200^[10]

General characteristics

• Crew: Flight:2 Mission:8-10
• Length: 159 ft 2 in (48. 5 m)
• Wingspan: 156 ft 1 in (47. The wingspan (or just span) of an airplane or a Bird, is the distance from the left wingtip to the right wingtip 6 m)
• Height: 52 ft (15. 8 m)
• Empty weight: 188,705 lb (85,595 kg)
• Loaded weight: 284,110 lb (128,870 kg)
• Max takeoff weight: 385,000 lb (175,000 kg)
• Powerplant: 2× General Electric CF6-80C2 turbofan, 61,500 lbf (282 kN) each

Performance

• Maximum speed: Mach 0. The Maximum Takeoff Weight or Maximum Takeoff Mass of an Aircraft is the maximum weight at which the pilot of the aircraft is allowed to attempt to take off WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout A turbofan is a type of Jet engine, similar to a Turbojet. It essentially consists of a Ducted fan with a smaller diameter turbojet engine In Aviation, V-speeds or Velocity-speeds are standard terms used to define Airspeeds important or useful to the operation of Aircraft, such 86
• Cruise speed: Mach 0. In Aviation, V-speeds or Velocity-speeds are standard terms used to define Airspeeds important or useful to the operation of Aircraft, such 80 (530 mph, 851 km/h)
• Range: 5,600 nmi (10,370 km)
• Service ceiling 40,100 ft (12,200 m)
• Endurance: 9. The maximal total range is the distance an Aircraft can fly between Takeoff and Landing, as limited by fuel capacity in powered aircraft or cross-country In Aeronautics, a ceiling is the maximum Density altitude an aircraft can reach under a set of conditions Endurance (also called sufferance) is the ability for humans to exert themselves through aerobic or Anaerobic exercise for relatively long periods of time 25 hours on station at 1,000 nautical-mile radius;
  13 hours at 300-nautical mile radius. Extended operations possible with air refueling

Avionics

• Northrop Grumman Multi-role Active Electronically Scanned Array radar

See also

Related development

• E-3 Sentry
• Boeing 767
• Boeing KC-767
• E-10 MC2A
  

Comparable aircraft

• Boeing 737 AEW&C
  

References

External links

• Boeing E-767 page
• JASDF E-767 page (Japanese)
• JASDF E-767 gallery (English)

---

© 2009 citizendia.org; parts available under the terms of GNU Free Documentation License, from http://en.wikipedia.org
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic