Northrop Corporation

Northrop Corporation was an American aircraft and defense manufacturer founded in 1939 by aviation pioneer John Knudsen Northrop in Hawthorne, California. It was the third major company associated with Northrop's name and emerged from his long-standing ambition to operate an independent aircraft enterprise. Earlier Northrop ventures had included the Avion Corporation and a Northrop company established with Donald Douglas, but those businesses were absorbed, reorganized, or dissolved before the 1939 corporation became the enduring Northrop entity. The company built its reputation through technically ambitious aircraft programs. During the Second World War it produced the P-61 Black Widow, one of the first purpose-designed American night fighters. Northrop also pursued radical tailless and flying-wing configurations, including the experimental B-35 and YB-49 bomber programs. Although these aircraft did not enter regular operational service, the work established a design tradition that later influenced the company's most famous aircraft, the B-2 Spirit stealth bomber. Northrop's postwar portfolio extended across fighters, interceptors, trainers, missiles, unmanned aircraft, and defense systems. The F-89 Scorpion became an important all-weather interceptor, while the SM-62 Snark represented the company's work on long-range missile technology. The lightweight F-5 Freedom Fighter became one of Northrop's most commercially successful military aircraft. Its relative affordability, straightforward maintenance requirements, and adaptability made it attractive to a wide range of international operators. The closely related T-38 Talon became a widely used advanced jet trainer for the United States Air Force and other users. During the 1970s and 1980s, Northrop repeatedly attempted to extend the lightweight-fighter concept. Its P-530 design evolved into the P-600 and then the YF-17 Cobra, which lost the United States Air Force Lightweight Fighter competition to the General Dynamics YF-16. The YF-17 nevertheless became the basis for the McDonnell Douglas F/A-18 Hornet after a separate naval competition. Northrop participated in production of major F/A-18 structures and systems, while its proposed F-18L export derivative led to a prolonged legal dispute with McDonnell Douglas. Northrop also developed the F-20 Tigershark as an advanced, economical successor to the F-5, but the program failed to secure sufficient customers and was abandoned. The company's strategic identity increasingly combined aircraft manufacturing with electronics, unmanned systems, missiles, and defense technology. Its flying-wing research ultimately contributed to the B-2 Spirit, a stealth bomber developed for the United States Air Force and introduced during the 1990s. Northrop also worked on target drones and other unmanned vehicles, including the BQM-74 Chukar family, as well as numerous experimental aircraft and missile concepts. Northrop's independent existence ended in 1994. After losing the Advanced Tactical Fighter competition to Lockheed and having its proposal excluded from consideration in the Joint Strike Fighter competition, the company acquired Grumman Corporation. The transaction created Northrop Grumman, combining Northrop's aircraft, electronics, and defense capabilities with Grumman's aerospace and naval heritage. Northrop Corporation therefore survives primarily as a historical predecessor and brand lineage within the later Northrop Grumman enterprise. Northrop Corporation was an American aircraft manufacturer and defense contractor that operated from its establishment in 1939 until its merger with Grumman in 1994. It was founded in Hawthorne, California, by aircraft designer Jack Northrop, whose career was closely associated with unconventional aerodynamic layouts, especially tailless aircraft and flying wings. The company became one of the most distinctive American aerospace manufacturers of the twentieth century. Northrop's origins were connected to several earlier ventures bearing Jack Northrop's name. After the Avion Corporation was absorbed into United Aircraft and Transport Corporation, Northrop and Donald Douglas established an earlier Northrop Corporation in Southern California. That business produced aircraft such as the Northrop Gamma and Delta, but was dissolved by Douglas in 1937 after labor difficulties. Jack Northrop subsequently established the 1939 company in Hawthorne with Moye Stephens. During the Second World War, Northrop expanded as a military producer and developed the P-61 Black Widow, a radar-equipped night fighter. The company also pursued its central flying-wing concept through the experimental XB-35 and YB-49 bomber programs. Although those aircraft did not enter regular service, the engineering work established a technical and institutional foundation for later stealth and blended-airframe projects. Northrop also developed the F-89 Scorpion interceptor and the SM-62 Snark intercontinental cruise missile. The company's most commercially successful conventional aircraft family was the lightweight F-5 Freedom Fighter. Designed as a comparatively affordable and maintainable supersonic fighter for export and allied air forces, the F-5 became widely used internationally. Its two-seat derivative, the T-38 Talon, became a major advanced jet trainer and remained an important part of United States pilot training for decades. Northrop tried to repeat the F-5's success with later lightweight designs, including the F-20 Tigershark, but the F-20 attracted insufficient procurement interest. Northrop also participated in the development of the aircraft that became the McDonnell Douglas F/A-18 Hornet. Its YF-17 Cobra lost the United States Air Force lightweight-fighter competition to the General Dynamics F-16, but the design was subsequently adapted with McDonnell Douglas for the United States Navy. Northrop continued to manufacture major structures and systems for the Hornet while disputing aspects of the commercial and intellectual-property relationship with McDonnell Douglas in litigation. In the late twentieth century, Northrop's flying-wing expertise contributed to the development of the B-2 Spirit stealth bomber. The program represented the most prominent operational expression of the design philosophy associated with Jack Northrop. The company nevertheless faced strategic setbacks, including the loss of the Advanced Tactical Fighter competition to Lockheed and the exclusion of its proposal from the Joint Strike Fighter competition. In 1994, Northrop acquired Grumman, creating Northrop Grumman. The original Northrop Corporation therefore ceased to exist as an independent corporate entity, while its aircraft programs, facilities, engineering heritage, and brand legacy continued within the merged company.

John Knudsen Northrop established several aircraft ventures over the course of his career. His first company, Avion Corporation, was absorbed in 1929 by United Aircraft and Transport Corporation and continued as a Northrop-named subsidiary before becoming part of Boeing. In 1931, Northrop and Donald Douglas formed another Northrop Corporation in California. That business produced aircraft such as the Gamma and Delta, but labor problems contributed to its dissolution in 1937, after which its factory became part of Douglas Aircraft. Northrop founded the enduring Northrop Corporation in 1939 at Hawthorne, California, with assistance from co-founder Moye Stephens. The company entered the Second World War as an aircraft producer and ranked among the major American recipients of wartime military-production contracts. Its P-61 Black Widow established a significant night-fighter achievement, while its B-35 and YB-49 programs explored the flying-wing configuration. These experimental bombers were not adopted for large-scale service, but their aerodynamic concepts became central to Northrop's later identity. The company diversified after the war. The F-89 Scorpion served as an all-weather interceptor, and the SM-62 Snark extended Northrop's work into strategic missile systems. Northrop's lightweight-fighter expertise culminated in the F-5 Freedom Fighter, an economical jet fighter exported widely and followed by the T-38 Talon trainer. The F-5's success shaped the company's subsequent strategy, encouraging a series of attempts to create similarly affordable and capable aircraft. Northrop's P-530 design evolved through the P-600 into the YF-17 Cobra. The aircraft lost the United States Air Force Lightweight Fighter competition to the General Dynamics YF-16, but the design was subsequently adapted with McDonnell Douglas assistance into the F/A-18 Hornet for the United States Navy. Northrop remained involved in production of major components and proposed the F-18L as a more export-oriented derivative. The commercial and contractual relationship with McDonnell Douglas led to a lengthy lawsuit. Northrop later pursued the F-20 Tigershark, an updated lightweight fighter based on the F-5 concept, but the aircraft attracted insufficient market interest and the program ended. Northrop also developed unmanned aircraft, target drones, missiles, and numerous experimental designs. The company's earlier flying-wing research eventually supported the development of the B-2 Spirit stealth bomber. By the late twentieth century, Northrop was competing in an increasingly consolidated defense industry and was expanding beyond traditional aircraft manufacturing into electronics and integrated defense systems. In 1994, Northrop's independent history concluded when the company acquired Grumman Corporation. The resulting Northrop Grumman combined two major American aerospace legacies. Northrop's historical contribution to the merged company included its fighter, bomber, unmanned-aircraft, missile, and defense-technology programs, particularly the flying-wing and stealth expertise associated with the B-2. Jack Northrop's first company was Avion Corporation, established in 1928 and absorbed the following year by United Aircraft and Transport Corporation. A subsidiary using the Northrop name later became part of Boeing. In 1931, Northrop and Donald Douglas established another Northrop Corporation in El Segundo, California. That company produced the Gamma and Delta aircraft, but Douglas dissolved it in 1937 after labor problems, converting its plant into a Douglas Aircraft division. Northrop founded the 1939 Northrop Corporation in Hawthorne, California, with assistance from Moye Stephens. The new company quickly became associated with experimental aerodynamics and military aircraft. Its wartime production included the P-61 Black Widow night fighter, while its research programs included the B-35 and YB-49 flying-wing bombers. Northrop ranked among significant American wartime defense producers. After the war, it developed the F-89 Scorpion interceptor and pursued missile and unmanned-aircraft work, including the SM-62 Snark. The F-5 Freedom Fighter became Northrop's most successful export-oriented fighter. Its compact design, relatively low operating cost, and suitability for allied air forces gave the company an important international market presence. The T-38 Talon, derived from the same general design family, became a long-serving United States advanced jet trainer. Northrop's later attempts to extend this lightweight-fighter formula included the N-300, P-530, P-600, YF-17 Cobra, and F-20 Tigershark. The YF-17 lost the United States Air Force lightweight-fighter competition to the YF-16, but it was subsequently redesigned with McDonnell Douglas for naval service as the F/A-18 Hornet. Northrop sought to market an adapted F-18L, while the basic F-18A achieved stronger sales. The resulting business relationship led to prolonged litigation, although Northrop continued producing substantial portions of the aircraft. Northrop's longstanding flying-wing research ultimately became relevant to stealth aircraft. The company participated in the B-2 Spirit program, whose low-observable flying-wing configuration reflected design themes Northrop had investigated since the 1940s. At the corporate level, Northrop later suffered major competitive setbacks when it lost the Advanced Tactical Fighter award to Lockheed and when its Joint Strike Fighter proposal was not retained. In 1994, Northrop acquired Grumman and the two companies became Northrop Grumman. This transaction ended the original corporation as a standalone company but preserved its technological and organizational legacy.

• 1994

  Northrop combines with Grumman

  [1]Northrop Corporationen.wikipedia.org

  Northrop acquired Grumman and became part of the newly formed Northrop Grumman.

• 1990

  B-2 Spirit reaches operational development era

  [1]Northrop Corporationen.wikipedia.org

  Northrop's flying-wing expertise is applied to the B-2 Spirit stealth bomber program.

• 1985

  Northrop registers northrop.com

  [1]Northrop Corporationen.wikipedia.org

  The company registered the northrop.com domain, an early event in commercial internet domain history. Northrop registers northrop.com, identified as one of the earliest .com domain names.

• 1974

  YF-17 Cobra competes in the Lightweight Fighter program

  [1]Northrop Corporationen.wikipedia.org

  Northrop's YF-17 lost the United States Air Force competition to the General Dynamics YF-16 but later became the basis for the F/A-18 Hornet.

• 1974

  YF-17 Cobra loses Air Force competition

  [1]Northrop Corporationen.wikipedia.org

  Northrop's YF-17 is defeated by the General Dynamics YF-16 in the lightweight-fighter competition.

• 1964

  F-5 Freedom Fighter becomes a major export program

  [1]Northrop Corporationen.wikipedia.org

  The F-5 family established Northrop as a major supplier of relatively affordable fighter aircraft to international operators.

• 1961

  T-38 Talon development era

  [1]Northrop Corporationen.wikipedia.org

  The T-38 Talon entered service as a supersonic advanced jet trainer derived from Northrop's lightweight-fighter expertise. The F-5 design lineage produces the T-38 Talon advanced trainer for the United States Air Force.

• 1959

  Thomas Victor Jones becomes president

  [1]Northrop Corporationen.wikipedia.org

  Thomas Victor Jones began a long leadership period as Northrop's president and later chairman.

• 1959

  F-5 program begins

  [1]Northrop Corporationen.wikipedia.org

  Northrop develops the lightweight supersonic fighter that becomes the F-5 Freedom Fighter family.

• 1950

  F-89 Scorpion enters the company's postwar portfolio

  [1]Northrop Corporationen.wikipedia.org

  The F-89 Scorpion represented Northrop's postwar role in all-weather interceptor aircraft.

• 1946

  Flying-wing bomber prototypes

  [1]Northrop Corporationen.wikipedia.org

  Northrop pursued the B-35 and YB-49 flying-wing bomber programs, creating a technical foundation for later stealth-aircraft work.

• 1940

  P-61 Black Widow development and production

  [1]Northrop Corporationen.wikipedia.org

  Northrop developed and built the P-61 Black Widow, a purpose-designed American night fighter used during the Second World War.

• 1940

  Flying-wing bomber experimentation

  [1]Northrop Corporationen.wikipedia.org

  Northrop pursued the B-35 and YB-49 flying-wing bomber programs, creating a technical foundation for later stealth-aircraft work.

• 1939

  Enduring Northrop Corporation founded

  [1]Northrop Corporationen.wikipedia.org

  John Knudsen Northrop founded the company that became the long-lived Northrop Corporation in Hawthorne, California, with co-founder Moye Stephens.

• 1939

  Northrop Corporation is established in Hawthorne

  [1]Northrop Corporationen.wikipedia.org

  Jack Northrop establishes a new Northrop Corporation in Hawthorne, California, with Moye Stephens associated with the company's founding.

• 1931

  Northrop and Douglas establish a California aircraft company

  [1]Northrop Corporationen.wikipedia.org

  Northrop and Donald Douglas formed a Northrop Corporation in California that produced the Gamma and Delta aircraft before being dissolved in 1937.

• 1928

  Avion Corporation founded

  [1]Northrop Corporationen.wikipedia.org

  John Knudsen Northrop established Avion Corporation, the first of several companies bearing his name or associated with his aircraft-development work.

Advanced American aerospace and defense contractor specializing in technically ambitious military aircraft, affordable lightweight fighters, flying-wing designs, unmanned systems, and defense technology.

• Night fighter · 1940

  P-61 Black Widow

  The P-61 Black Widow was a twin-engine aircraft developed specifically for night-fighting missions. It used radar and specialized crew arrangements to detect and attack aircraft in darkness, becoming one of Northrop's most important wartime production programs. A twin-engine American night fighter developed during the Second World War. The P-61 was designed around airborne radar and dedicated crew positions for night interception, making it one of Northrop's defining wartime aircraft programs.

• Experimental flying-wing bomber · 1946

  B-35 and YB-49

  The B-35 and jet-powered YB-49 were experimental flying-wing bombers. Their operational adoption was limited, but the programs advanced Northrop's understanding of tailless aerodynamics and provided an important conceptual precursor to the later B-2 stealth bomber. A sequence of experimental bomber aircraft built around Jack Northrop's flying-wing concept. Although the programs did not become standard operational bombers, they generated aerodynamic and systems knowledge that influenced Northrop's later stealth-aircraft work.

• Interceptor aircraft · 1950

  F-89 Scorpion

  The F-89 Scorpion was an all-weather interceptor designed for postwar air defense. It formed a substantial part of Northrop's early jet portfolio and was developed to detect and engage aircraft under demanding weather and visibility conditions. A postwar jet interceptor developed for United States air defense. The F-89 combined radar-directed interception with heavy armament and served as one of Northrop's principal early Cold War military aircraft.

• Lightweight fighter aircraft · 1964

  F-5 Freedom Fighter

  The F-5 Freedom Fighter was a compact, relatively economical supersonic fighter intended for broad international use. Its simple maintenance philosophy, lower operating cost, and export adaptability made it one of Northrop's most successful aircraft families. A compact, relatively economical supersonic fighter developed for export and allied use. The F-5 achieved broad international adoption and became Northrop's best-known conventional fighter family, with later versions continuing the design's service life.

• Advanced jet trainer · 1961

  T-38 Talon

  The T-38 Talon is a supersonic advanced jet trainer derived from Northrop's lightweight-aircraft design work. It became a key platform for training military pilots and remained associated with Northrop's reputation for compact, high-performance aircraft. A two-seat supersonic trainer derived from the F-5 design approach. The T-38 became a major United States Air Force training aircraft and was used to prepare pilots for high-performance operational jets.

• Intercontinental cruise missile · 1958

  SM-62 Snark

  The SM-62 Snark was a long-range unmanned cruise missile developed for strategic missions. It reflected Northrop's expansion beyond aircraft into missile systems and autonomous long-distance delivery technologies.

• Target drone

  BQM-74 Chukar

  The BQM-74 Chukar was an unmanned target aircraft used to support air-defense training and weapons testing. It represented Northrop's continuing involvement in remotely operated and unmanned aerospace systems. An unmanned aerial target system associated with Northrop's missile and unmanned-aircraft work. The Chukar family supported military testing and training requirements rather than conventional combat aviation.

• Stealth bomber · 1990

  B-2 Spirit

  The B-2 Spirit is a flying-wing stealth bomber developed for the United States Air Force. Its low-observable design and flying-wing configuration were the most prominent operational expression of Northrop's long-running research into tailless aircraft. A low-observable flying-wing strategic bomber developed in the late twentieth century. The B-2 represented the operational culmination of Northrop's long-standing interest in flying-wing aerodynamics and became the company's signature advanced-aircraft program.

• Lightweight fighter prototype · 1974

  YF-17 Cobra

  Northrop's prototype for the United States Air Force lightweight-fighter competition. Although it lost to the YF-16, the design was adapted with McDonnell Douglas into the F/A-18 Hornet family.

• Lightweight fighter · 1982

  F-20 Tigershark

  A later Northrop development based on the F-5 concept and fitted with a more powerful engine and updated systems. The aircraft was intended as a cost-effective export fighter but attracted too little market and government interest to enter significant production.

• 1994

  Acquire Grumman and form Northrop GrummanM&A

  Background

  Northrop faced a more concentrated defense market after losing the Advanced Tactical Fighter contract and having its Joint Strike Fighter proposal excluded from consideration.

  Action taken

  Northrop acquired Grumman Corporation, combining the two companies' aerospace, aircraft, electronics, and defense capabilities.

  Aftermath

  The transaction ended Northrop Corporation as an independent company and created the corporate predecessor of the present-day Northrop Grumman organization.

  Source

• 1975

  Extend the lightweight-fighter design strategyStrategy

  Background

  The commercial and operational success of the F-5 encouraged Northrop to pursue related lightweight designs for domestic and international markets.

  Action taken

  Northrop developed the N-300, P-530, P-600, YF-17, and later the F-20 Tigershark as successive attempts to retain the F-5's affordability and export appeal.

  Aftermath

  The YF-17 lost the U.S. Air Force competition but evolved into the F/A-18 through cooperation with McDonnell Douglas. The F-20 did not attract enough customers and was discontinued.

  • General Dynamics — General Dynamics won the Lightweight Fighter competition with the YF-16.
  • McDonnell Douglas — McDonnell Douglas adapted the YF-17 into the F/A-18 Hornet for the U.S. Navy and partnered with Northrop on the program.

  Source

• 1974

  Develop the YF-17 from the P-530 and P-600 design lineageGeneration change

  Background

  Northrop sought to extend the commercial and technical success of the F-5 through progressively more capable lightweight-fighter designs.

  Action taken

  The company developed the P-530 and P-600 into the YF-17 Cobra for the United States Air Force lightweight-fighter competition.

  Aftermath

  The YF-17 lost the Air Force competition but was later adapted with McDonnell Douglas into the F/A-18 Hornet.

  Source

1. 1Northrop Corporationen.wikipedia.org