Raytheon

Raytheon Company
Type Public (NYSE: RTN)
Founded Cambridge, Massachusetts (1922)
Headquarters Waltham, Massachusetts
Key people William H. Swanson, Chairman and CEO
Industry Aerospace and defense
Revenue Green Arrow Up.svg$21.3 billion USD (2007)[1]
Employees 72,000
Website www.raytheon.com

Raytheon Company (NYSE: RTN) is a major American defense contractor and industrial corporation with core manufacturing concentrations in defense systems and defense and commercial electronics. It was previously involved in corporate and special-mission aircraft until early 2007. Raytheon is the world's largest producer of guided missiles.[2]

Established in 1922, the company reincorporated in 1928 and adopted its present name in 1959. The company has around 73,000 employees worldwide and annual revenues of approximately US$20 billion. More than 90 percent of Raytheon's revenues were obtained from defense contracts and, as of 2007, it was the fifth largest defense contractor in the world,[3] and is the fourth largest defense contractor in the United States by revenue.

Raytheon Headquarters was moved from Lexington, Massachusetts to Waltham, Massachusetts on October 27, 2003.[4] The company was previously headquartered in Waltham from 1941 until it opened its then Lexington headquarters in 1961.

Contents

History

An early Raytheon Tube Box
A Raytheon Tomahawk Block IV cruise missile during a U.S. Navy flight test at NAWS China Lake, California (Nov. 10, 2002)

Early years

In 1922, two former engineering college roommates Laurence K. Marshall and Vannevar Bush, along with scientist Charles G. Smith, founded the American Appliance Company in Cambridge, Massachusetts.[5] Its focus, which was originally on new refrigeration technology, soon shifted to electronics. The company's first product was a gaseous (helium) rectifier that was based on Charles Smith's earlier astronomical research of the star Zeta Puppis.[6] The electron tube was christened with the name Raytheon ("light of/from the gods") and was used in a battery eliminator, a type of radio-receiver power supply that plugged into the power grid in place of large batteries. This made it possible to convert household alternating current to direct current for radios and thus eliminate the need for expensive, short-lived batteries.

In 1925 the company changed its name to Raytheon Manufacturing Company and began marketing its rectifier, under the Raytheon brand name, with great commercial success. In 1928 Raytheon merged with Q.R.S. Company, an American manufacturer of electron tubes and switches, to form the successor of the same previous name, Raytheon Manufacturing Company. In 1933 it diversified by acquiring Acme-Delta Company, a producer of transformers, power equipment, and electronic auto parts. By the 1930s it had already grown to become one of the world's largest vacuum tube manufacturing companies.

During WW II

Early in World War II, physicists in England invented the magnetron, a specialized microwave-generating electron tube that markedly improved the capability of radar to detect enemy planes. American companies were then sought by the U.S. government to perfect and mass-produce the magnetron for ground-based, airborne, and shipborne radar systems, and, with support from the Massachusetts Institute of Technology's Radiation Laboratory (recently formed to investigate microwave radar), Raytheon received a contract to build the devices. Within a few months of being awarded the contract, Raytheon had already begun to mass manufacture magnetron tubes for use in radar sets and then complete radar systems. At war's end in 1945 the company was responsible for about 80 percent of all magnetrons manufactured. During the war Raytheon also pioneered the production of shipboard radar systems, particularly for submarine detection.

Raytheon's research on the magnetron tube revealed the potential of microwaves to cook food. In 1945 Raytheon's Percy Spencer invented the microwave oven by discovering that the magnetron could rapidly heat food. In 1947 the company demonstrated the Radarange microwave oven for commercial use.

After the WW II

In 1945 the company expanded its electronics capability through acquisitions that included the Submarine Signal Company (founded in 1901), a leading manufacturer of maritime safety equipment. With its broadened capabilities, Raytheon developed the first guidance system for a missile that could intercept a flying target. In 1948 Raytheon began to manufacture guided missiles. In 1950 its Lark missile became the first such weapon to destroy a target aircraft in flight. Raytheon then received military contracts to develop the air-to-air Sparrow and ground-to-air Hawk missiles — projects that received impetus from the Korean War. In later decades it remained a major producer of missiles, among them the Patriot antimissile missile and the air-to-air Phoenix missile. In 1959 Raytheon acquired Apelco-Applied Electronics, which significantly increased its strength in commercial marine electronics. In the same year, it changed its name to Raytheon Company.

During the post-war years Raytheon also made radio and television transmitters and related equipment for the commercial market in the U.S. and got into the educational publishing business with the acquisition of D.C. Heath. In the 1950s Raytheon began manufacturing transistors, including the CK722, priced and marketed to hobbyists.

In 1965 it acquired Amana Refrigeration, Inc., a manufacturer of refrigerators and air conditioners. Using the Amana brand name and its distribution channels, Raytheon began selling the first countertop household microwave oven in 1967 and became a dominant manufacturer in the microwave oven business.

The 80s

In 1980, Raytheon acquired Beech Aircraft Corporation, a leading manufacturer of general aviation aircraft founded in 1932 by Walter H. Beech. In 1993 the company expanded its aircraft activities by adding the Hawker line of business jets by acquiring Corporate Jets Inc., the business jet product line of British Aerospace (now BAE Systems). These two entities were merged in 1994 to become the Raytheon Aircraft Company. In the first quarter of 2007 Raytheon sold its aircraft operations, which is now operating as Hawker Beechcraft. The product line of Raytheon's aircraft subsidiary included business jets such as the Hawker 800XP and Horizon, the Beechjet 400A, and the Premier I; the popular King Air series of twin turboprops; and single-engine piston aircraft such as the Beech Bonanza. Its special-mission aircraft included the single-turboprop T-6A Texan II, which had been chosen to be the primary training aircraft for the U.S. Air Force and U.S. Navy.

The 90s

In 1991, during the Persian Gulf War, Raytheon's Patriot missile received great international exposure, resulting in a substantial increase in sales for the company outside the United States. In an effort to establish leadership in the defense electronics business, Raytheon purchased in quick succession Dallas-based E-Systems (1995), Chrysler Corporation's defense electronics and aircraft-modification businesses (1996), and the defense unit of Texas Instruments - Defense Systems & Electronics Group (1997). Also in 1997, Raytheon acquired the aerospace and defense business of Hughes Aircraft Company from Hughes Electronics Corporation — a subsidiary of General Motors, which included a number of product lines previously purchased by Hughes Electronics including the former General Dynamics missile business, the defense portion of Delco Electronics (Delco Systems Operations), and Magnavox Electronic Systems.

Raytheon also divested itself of several nondefense businesses in the 1990s, including Amana Refrigeration. On October 12, 1999 Raytheon exited the personal rapid transit (PRT) business as it terminated its PRT 2000[7] system due to high-cost of development and lack of interest.[8] The PRT 2000 prototype now sits idle at their Marlboro, Massachusetts facility.[9]

Company structure

Businesses

Raytheon is composed of six major business divisions:

Raytheon’s businesses are supported by several dedicated international operations including: Raytheon Australia (Managing Director, Ron Fisher); Raytheon Canada Limited; operations in Japan; Raytheon Microelectronics in Spain; Raytheon System Limited in the UK; and ThalesRaytheonSystems, France.

Strategic Business Areas

In recent years, Raytheon has expanded into other fields while redefining some of its core business activities. Raytheon has identified four key 'Strategic Business Areas' where it is focusing its expertise and resources, including:

Leadership

William H. Swanson is the Chairman and CEO. Other members of the board of directors of Raytheon are: Barbara Barrett, Vernon Clark, Ferdinand Colloredo-Mansfeld, John Deutch, Thomas Everhart, Frederic Poses, Warren Rudman, Michael Ruettgers, Ronald Skates, William Spivey, and Linda Stuntz.

International

In addition to its US domestic facilities, Raytheon has offices in countries worldwide, including Australia, Belgium, Brazil, Canada, Chile, China, Czech Republic, Egypt, France, Germany, Greece, India, Italy, Japan, Kuwait, Malaysia, Marshall Islands, Norway, Republic of Korea, Singapore, Saudi Arabia, Spain, Sweden, Taiwan, Thailand, Turkey, United Arab Emirates, and the United Kingdom.

Products and services

Overview

See Raytheon products for products manufactured and sold by Raytheon Company

Raytheon's electronics and defense-systems units produce air-, sea-, and land-launched missiles, aircraft radar systems, weapons sights and targeting systems, communication and battle-management systems, and satellite components. Raytheon is also a leader in marine electronics, manufacturing shipboard radar and sonar systems, autopilots, depth finders, and Global Positioning System (GPS) devices.

Air Traffic Control Systems

FIRSTplus™ Air Traffic Control Simulator
AutoTrac III ATM System

Radars and sensors

A PAVE PAWS Early Warning Radar System built by Raytheon, based at Clear AFS, Alaska

Raytheon is a developer and manufacturer of radars (including AESAs), electro-optical sensors, and other advanced electronics systems for airborne, naval and ground based military applications. Examples include:

Satellite sensors

Raytheon, often in conjunction with Boeing, Lockheed Martin or Northrop Grumman, is also heavily involved in the satellite sensor business. Much of its Space and Airborne Systems division in El Segundo, CA is devoted to this, a business it inherited from Hughes. Examples of programs include:

Communications

Radioactive materials detection system

As part of the company’s growing homeland security business and strategic focus, Raytheon has teamed with other contractors to develop an Advance Spectroscopic Portal (ASP) to allow border officials to peer into vehicles and containers to identify radioactive materials.[11]

Semiconductors

Raytheon also manufactures semiconductors for the electronics industry. In the late 20th century it produced a wide range of integrated circuits and other components, but as of 2003 its semiconductor business specializes in gallium arsenide (GaAs) components for radio communications. It is also making efforts to develop gallium nitride (GaN) components for next-generation radars and radios.

Missile defense systems

In the framework of Ground-Based Midcourse Defense, Raytheon is developing a Ground-Based Interceptor (GBI) which includes a booster missile and a kinetic Exoatmospheric Kill Vehicle (EKV), along with several key radar components, such as the Sea-Based X-Band Radar (SBX) and the Upgraded Early Warning Radars (UEWR).

Missiles

Raytheon missiles on display at the Paris Air Show, 2005

Raytheon is a developer of missiles and related missile defense systems. These include:

Hi-tech simulators

Raytheon also produces and runs the ABACUS (Advanced BAttlefield CompUter Simulation) or Higher Formation Trainer (HFT) for training HQs from small specialist units up to corps level.

Training Services and Learning Outsourcing

Raytheon Professional Services (RPS) is a global leader in training services and learning outsourcing for over 75 years. Clients are offered a full range of proven training capabilities on a global scale, tailored to client’s unique needs. The scope of each solution can vary from short-term training initiatives and projects to multi-year outsourcing engagements for some or all of a client’s training function. Services include: (1) Performance Consulting & Learning Strategy Development, (2)Training Design, Development & Delivery, (3) Learning Technologies and (4)Training Administration

Controversies

As the vast majority of Raytheon's revenues have been obtained from defense contracts, there has been a necessarily tight relationship of cooperation between itself and the U.S. Department of Defense and other U.S. government departments and agencies (i.g. in the Fiscal Year 2007 the National Science Foundation has awarded Raytheon $152 million dollars in grants, more than to any other institution and organization in the country [12]). This, along with heavy lobbying, has led to perennial charges of influence peddling. Raytheon, for instance, contributed nearly a million dollars to various defense-related political campaigns in the presidential election year of 2004, spending much more than that on lobbying expenses.[13] And there are many tight ties between the company and all levels of government. For example, Richard Armitage, a former United States Deputy Secretary of State, is linked to the company through consultancy work. John M. Deutch, a former U.S. Director of Central Intelligence, sits on the board of directors, along with Warren Rudman, a former Senator. On the other hand, Raytheon has also been involved in several contract disputes with the U.S. Government.[13]

Case of Illegally obtaining classified information in a bidding process

In March 1990, Raytheon pleaded guilty to one felony count of illegally obtaining classified Air Force budget and planning documents.[14] U.S. District Judge Albert V. Bryan, Jr. imposed a $10,000 criminal fine for one felony count of "conveyance without authority" and $900,000 in civil penalties and damages. The documents allegedly gave Raytheon an unfair advantage against its competitors in bidding for weapons contracts. Although the plea only involved 1983 Air Force documents, United States Attorney Henry Hudson said Raytheon also illegally obtained a wide range of secret Pentagon documents.

Disputed claims of the Patriot missile

During the 1991 Gulf War, Raytheon received widespread publicity in the United States in connection with its manufacture of the Patriot missile (MIM-104 Patriot). The Patriot missile is an anti-aircraft missile that was upgraded to have some capability against ballistic missiles. The Patriot had allegedly intercepted Scud missiles launched by Iraq in its defense against the U.S.-led invasion. When President George H. W. Bush traveled to Raytheon's Patriot manufacturing plant in Andover, Massachusetts during the Gulf War, he declared, the ""Patriot is 41 for 42: 42 Scuds engaged, 41 intercepted!"[15] After the Gulf War had concluded, the staff of the House Government Operations Subcommittee on Legislation and National Security reported,

"The Patriot missile system was not the spectacular success in the Persian Gulf War that the American public was led to believe. There is little evidence to prove that the Patriot hit more than a few Scud missiles launched by Iraq during the Gulf War, and there are some doubts about even these engagements. The public and the United States Congress were misled by definitive statements of success issued by administration and Raytheon representatives during and after the war."[16]

Contract disputes

In October 1994, Raytheon paid $4 million to settle a U.S. government claim that it inflated a defense contract for antimissile radar.[17] The PAVE PAWS (Precision Acquisition Vehicle Entry Phased Array Warning System) system was designed to detect incoming submarine-launched ballistic missiles. The government claimed in a federal lawsuit that Raytheon inflated a contract to upgrade two of four PAVE PAWS sites by proposing to hire higher-skilled employees than were necessary for the job.[17]

Just one year earlier, on October 14, 1993, Raytheon paid $3.7 million to settle allegations that it misled the U.S. Defense Department by overstating the labor costs involved in manufacturing Patriot missiles.[17] "The recovery of this money is yet another warning to contractors that the Truth in Negotiations Act's information disclosure requirements will be strictly and sternly enforced," Frank Hunger, assistant attorney general, said in a statement.[17]

Brazilian SIVAM project

Allegations of bribery were made against Raytheon in 1995 in connection with its efforts to win a 1.4 billion dollar radar contract from Brazil for the SIVAM project.[18] SIVAM, the acronym for "System for Vigilance over the Amazon," was a complex radar surveillance system for use in monitoring the Amazon rainforest, allegedly to curb the trafficking of narcotics and to curb illegal logging or burning of the forest. Brazilian police wiretapped a telephone conversation between a special advisor to the Brazilian President Fernando Henrique Cardoso, and Raytheon's operative in Brazil, Jose Afonso Assumpcão. According to transcripts published in the Brazilian national weekly Isto É, when Assumpcão told Gomes dos Santos that Brazilian Senator Gilberto Miranda might block the Raytheon contract, Gomes dos Santos responded, "Damn, did you already pay this guy?". Gomes dos Santos and Brazil's aviation minister resigned because of allegations that this conversation suggested that bribes were paid. Nonetheless, Raytheon ultimately was awarded the contract after lobbying by the administration of U.S. President Bill Clinton.

AGES lawsuit

In 1996 a corporation called AGES Group filed a lawsuit against Raytheon in a federal court in Alabama over a $450 million contract to service C-12 Huron and U-21 military aircraft.[19] The Boston Herald reported that AGES alleged that the security firm Wackenhut Corporation, hired by Raytheon, used video and audio surveillance to spy on a consulting firm hired by AGES to help it prepare its bid. AGES also alleged that stolen confidential pricing documents were turned over to Raytheon. Both Raytheon and AGES had been vying for the contract, which Raytheon had held for decades but which AGES won in 1996. On May 12, 1999, Reuters reported that Raytheon would pay $3 million to AGES Group and purchase $13 million worth of AGES aircraft parts to settle the AGES lawsuit. The settlement was exceptional in that the parties agreed that judgment would be entered against Raytheon, legally establishing the validity of AGES' allegations.

Securities litigation

In October 1999, Raytheon was the subject of a number of securities class action lawsuits alleging it had issued a series of materially false and misleading statements including overstating the company's 1997 and 1998 revenues, concealing cost overruns and inflating its financial results. The suits were brought in response to a massive drop in value of Raytheon's common stock as traded on the New York Stock Exchange. On Tuesday, October 12, 1999, Raytheon shares were trading at about 45% below the level at which they had been traded on October 11, 1999. The plunge in stock prices was triggered by a Wall Street Journal report that Raytheon was over cost or behind schedule on more than a dozen fixed-price defense contracts. This crash represented a loss of about $8 billion in market value in a single day. On May 13, 2004 Raytheon reported that it had reached a preliminary agreement to pay $410 million in cash and securities to settle a class-action lawsuit alleging it misled investors by not disclosing difficulties on various Pentagon and construction projects five years before.

Swanson's Unwritten Rules of Management

On April 24, 2006 in a statement released by Raytheon, CEO Swanson admitted to plagiarism in claiming authorship for his booklet, "Swanson's Unwritten Rules of Management," after a report by The New York Times.[20] On May 2, 2006, Raytheon withdrew distribution of the book.[21] The following day, the company's board of directors announced that "In response to this matter, the Board has decided not to raise Mr. Swanson's salary above its 2005 level, and will reduce the amount of restricted stock for which he is eligible in the coming year by 20 percent."[22]

NBC News allegation of U.S. Army favoritism

As of September 2006, an NBC News report of the Army's award of an anti-rocket propelled grenade (RPG) system raised questions about favoritism towards Raytheon.[23] Major General Sorenson, deputy army secretary for acquisition, disputed the NBC report in detail. The top Democrat on the Tactical Air and Land Forces Subcommittee, Neil Abercrombie of Hawaii as well as panel chair Curt Weldon of Pennsylvania strongly criticized NBC for what they saw as "shoddy" reporting.[24] The panel had also asked the General Accounting Office to investigate the case.

Editing of Wikipedia entry

On August 2007, Wikipedia Scanner discovered that on October 26, 2005, a computer user (identified as User:199.46.198.230) on Raytheon's network edited the Wikipedia article on the company, deleting all information about the Patriot missile's performance in the Gulf War, a lawsuit from competitor AGES, as well as paragraphs describing a $910,000 fine for illegally obtaining classified military documents and a $4 million penalty for inflating a government contract.[25]

Environmental Record

Two lawsuits were filed against a Raytheon Company plant in St. Petersburg, Florida due to concern with health risks, property values, and contamination in April 2008.[26] Raytheon was given until the end of the month to independently test whether or not the groundwater that originated from its area was contaminated. According to the Florida Department of Environmental Protection, the groundwater contained carcinogenic contaminants, including trichloroethylene, 1,4-dioxane, and vinyl chloride.[27] The DEP also reported that the clouds contained other toxins, such as lead and toluene.[28]

In 1995, Raytheon acquired Dallas-based E-Systems, including a site in St. Petersburg, Florida. In November 1991, prior to Raytheon's acquisition, contamination had been discovered at the E-Systems site. Soil and groundwater had been contaminated with the volatile organic compounds trichloroethylene and 1,4-Dioxane. In 2005 groundwater monitoring indicated polluted groundwater was moving into areas outside the site.[29] According to DEP documentation, Raytheon has tested wells on its site since 1996 but had not delivered a final report; therefore, it was given a deadline on May 31, 2008 to investigate its groundwater.[30]

In another case, Raytheon was ordered by the Environmental Protection Agency to treat groundwater at the Tucson Plant (acquired during the merger with Hughes) in Arizona since Raytheon used and disposed metals, chlorinated solvents, and other substances at the plant since 1951.[31] The EPA further required the installation and operation of an oxidation process system to treat the solvents and make the water safe to drink.[32]

Corporate stewardship

Mathematics and science education

Philanthropy

Workplace diversity

References

  1. ↑ Raytheon Co. (RTN) Yahoo! Finance
  2. ↑ Missile maker hopes to diversify, create technology for peacetime
  3. ↑ "Defense News Top 100". Defense News Research (2007). Retrieved on 2006-08-23.
  4. ↑ New Raytheon Headquarters to Open Oct. 27 in Waltham, Mass. October 22 2003 PRNewswire.
  5. ↑ Raytheon Australia. History. Raytheon Marketing Material.
  6. ↑ Otto J. Scott, The Creative Ordeal, (New York, Atheneum, 1974),16-32
  7. ↑ PRT 2000 System Concept, "Design and Commercialization of the PRT 2000 Personal Rapid Transit System" by S.J.Gluck, R.Tauber and B.Schupp. University of Washington Web Server.
  8. ↑ Raytheon PRT Prospects Dim but not Doomed. Peter Samuel. October, 1999.
  9. ↑ Personal Rapid Transit (PRT) or Personal Automated Transport (PAT) Quicklinks. University of Washington Web Server.
  10. ↑ Raytheon Announces Revolutionary New 'Cockpit' for Unmanned Aircraft - an Industry First Falls Church, Virgnia, Oct. 31, 2006. PRNewswire.
  11. ↑ "Raytheon targets nuclear smuggling: Firm sees profit in homeland security". BostonGlobe (2006). Retrieved on 2006-11-07.
  12. ↑ NSF Award Summary: Top 50 Institutions FY 2007
  13. ↑ 13.0 13.1 Project on Government Oversight. Spring 2004 The Politics of Contracting. Raytheon.
  14. ↑ NewsBank InfoWeb
  15. ↑ Bush, George H.W. (1991). "Remarks to Raytheon Missile Systems Plant Employees in Andover, Massachusetts". The George Bush Presidential Library. Retrieved on 2006-04-05.
  16. ↑ "Report 102-1086". Activities of the House Committee on Governmental Operations, One Hundred Second Congress First and Second Sessions (1991-1992). Retrieved on 2006-04-05.
  17. ↑ 17.0 17.1 17.2 17.3 United States Court of Appeals for the Federal Circuit RAYTHEON COMPANY (doing business as Raytheon Systems Company), Appellant, v. Thomas E. White, SECRETARY OF THE ARMY, Appellee. 01-1350
  18. ↑ NewsBank InfoWeb -2
  19. ↑ Krupa, Gregg (1999-05-13). "Raytheon Unit Settles Industrial-Spying Allegations", Boston Globe. Retrieved on 2006-04-05. 
  20. ↑ "Raytheon Chairman & CEO Comments Regarding 'Unwritten Rules'". Raytheon News Release. Retrieved on 2006-05-02.
  21. ↑ "Raytheon halts distribution of controversial booklet by CEO", AP/Boston.com (2006-05-02). Retrieved on 2006-05-02. 
  22. ↑ "Statement of Board of Directors of Raytheon Company". Raytheon News Release. Retrieved on 2006-05-03.
  23. ↑ "MSNBC article". Did the Army favor Raytheon in anti-RPG bid?. Retrieved on 2006-09-07.
  24. ↑ "U.S. Army defends Raytheon contract amid storm". Retrieved on 2006-11-21.
  25. ↑ The Perils of Wiki PR, Andy Greenberg, 08.15.07
  26. ↑ "Is Raytheon site poisoning St. Petersburg neighborhood?" (04/24/08). Retrieved on 2008-05-06.
  27. ↑ "Raytheon's Florida Neighbors Sue Over Water Contamination" (05/05/08). Retrieved on 2008-05-06.
  28. ↑ "Is Raytheon site poisoning St. Petersburg neighborhood?" (04/24/08). Retrieved on 2008-05-06.
  29. ↑ "Raytheon Site Summary". Florida Department of Environmental Protection.
  30. ↑ "Is Raytheon site poisoning St. Petersburg neighborhood?" (04/24/08). Retrieved on 2008-05-06.
  31. ↑ "Environmental Protection Agency" (07/13/07). Retrieved on 2008-05-06.
  32. ↑ "Environmental Protection Agency" (07/13/07). Retrieved on 2008-05-06.
  33. ↑ MathsMovesU
  34. ↑ Raytheon (November 11, 2005). Raytheon Takes on New Assignment: Helping Kids Make the Grade in Math and Science. Press release.
  35. ↑ Raytheon (September 14, 2004). Raytheon Announces $850K Grant to Tuskegee University. Press release.
  36. ↑ Raytheon (July 24, 2000). Raytheon and its Employees Contribute $8 Million to the United Way. Press release.
  37. ↑ Raytheon (November 1, 2006). Raytheon Honored at Special Olympics Gala. Press release.
  38. ↑ Raytheon (2005). [1]. Human Rights Campaign.

See also

External links

Lists relating to aviation
General
Timeline of aviation · Aircraft (manufacturers) · Aircraft engines (manufacturers) · Airports · Airlines · Civil authorities
Military
Air forces · Aircraft weapons · Missiles · Unmanned aerial vehicles (UAVs) · Experimental aircraft
Accidents/incidents
General · Military · Commercial (airliners) · Deaths
Records
Airspeed · Distance · Altitude · Endurance · Most-produced aircraft