Westinghouse J40 (original) (raw)
El Westinghouse J40 iba a ser un motor turborreactor con postcombustión de alto rendimiento estadounidense. Fue propuesto por a principios de 1946 para propulsar varios aviones de caza, con una empuje de 33 kN (7.500 lbf) a nivel del mar en condiciones estáticas, pero una versión más potente con 11.000 lbf de empuje creada para el avión resultó ser un fracaso. Después de un programa de desarrollo problemático y con retrasos, una serie de fallos en servicio provocaron pérdidas de aeronaves y pilotos, lo que hizo que se retiraran de inmediato todos los aviones Demon propulsados por motores J40 y se cancelara el proyecto del J40 en el año 1955.
| Property | Value |
|---|---|
| dbo:abstract | Westinghouse J40 byl jeden z prvních proudových motorů vysokých výkonů, vyvíjený od roku 1946 firmou Westinghouse Aviation Gas Turbine Division na žádost úřadu pro letectví amerického námořnictva (BuAer). Ten jej zamýšlel použít v několika stíhacích letadlech a bombardérech. Zatímco první konstrukce nižších výkonů byla úspěšná, pokusy zvětšit ji do plnohodnotné konstrukce pro velké výkony propadly a od designu bylo nakonec upuštěno. Projekt je považován za debakl a neúspěch. Konstrukce původně vyžadovala motor o tahu 7 500 lbf (33 kN) ve statických podmínkách na úrovni mořské hladiny bez přídavného spalování a o tahu 10 900 lbf s přídavným spalováním. Silnější verze o tahu 9 500/13 700 lbf měla nahradit starší motory v dracích různých letounů. Celkem bylo plánováno třináct různých variant. (cs) Das Westinghouse J40 war ein US-amerikanisches Turbojet-Triebwerk, das ab 1946 im Auftrag des der US Navy entwickelt wurde. Es handelt sich um ein Einwellentriebwerk mit einem 10-stufigen Axialverdichter, einer Ringbrennkammer und einer Axialturbine. Im Juni 1947 schloss man mit der Westinghouse Aviation Gas Turbine Division, einer Tochterfirma von Westinghouse Electric, einen Entwicklungsvertrag. Der erste Prototyp lief im November 1948. Bis zum Frühjahr 1949 lief die Entwicklung im Zeitplan. Eine Weiterentwicklung mit Nachbrenner, das J40-WE-8, wurde begonnen. Das Triebwerk sollte alle neuen Navy-Jagdflugzeuge, so die Grumman XF10F, die McDonnell F3H und die Douglas F4D antreiben. Auch die Douglas A-3 sollte mit dem J40, jedoch ohne Nachbrenner, ausgerüstet werden. Es gelang jedoch nicht, eine ausreichende Zuverlässigkeit sicherzustellen. Der 150-h-Dauertest konnte erst im Januar 1951 erfolgreich abgeschlossen werden, mit Nachbrenner konnte der Test erst im August 1952 bestanden werden. Kritisch waren Vibrationen des Kompressors. Auch wurde im Flugtest die Reaktionszeit des Triebwerks bemängelt, das für den Übergang von Leerlauf zu Volllast etwa 20 s benötigte, was zu Problemen beim Landeanflug führte. Zu diesem Zeitpunkt standen jedoch bereits leistungsgleiche aber bewährte Triebwerke der Mitbewerber im Einsatz. Das Projekt wurde deswegen 1955 eingestellt, ohne dass es zu einer Serienfertigung gekommen ist. (de) El Westinghouse J40 iba a ser un motor turborreactor con postcombustión de alto rendimiento estadounidense. Fue propuesto por a principios de 1946 para propulsar varios aviones de caza, con una empuje de 33 kN (7.500 lbf) a nivel del mar en condiciones estáticas, pero una versión más potente con 11.000 lbf de empuje creada para el avión resultó ser un fracaso. Después de un programa de desarrollo problemático y con retrasos, una serie de fallos en servicio provocaron pérdidas de aeronaves y pilotos, lo que hizo que se retiraran de inmediato todos los aviones Demon propulsados por motores J40 y se cancelara el proyecto del J40 en el año 1955. (es) Conçu et produit par la société américaine (en), le Westinghouse J40 aurait dû être un turboréacteur à postcombustion à hautes performances. (fr) Il Westinghouse J40 era un motore turbogetto a compressore assiale dotato di postbruciatore realizzato dall'azienda statunitense tra gli anni quaranta ed i cinquanta. Promosso, nel 1946, dal Bureau of Aeronautics (ufficio dell'aviazione) della United States Navy il motore era accreditato per una spinta di 3 300 N (7 500 lbf) al livello del mare ed era destinato ad equipaggiare diversi aerei militari. (it) The Westinghouse J40 was an early high-performance afterburning turbojet engine designed by Westinghouse Aviation Gas Turbine Division starting in 1946 to a US Navy Bureau of Aeronautics (BuAer) request. BuAer intended to use the design in several fighter aircraft and a bomber. However, while an early low-power design was successful, attempts to scale it up to its full design power failed, and the design was finally abandoned, deemed a "fiasco" and a "flop". The design originally called for an engine of 7,500 lbf (33 kN) thrust at sea level static conditions without afterburner and 10,900 lbf thrust with afterburner. A more powerful model 9,500/13,700 lbf thrust version was intended to replace the earlier engines in the various airframes. In total, thirteen different variations were planned. The projected need for the higher-power engines led BuAer to place a second source production contract with Ford Motor Company, Lincoln Mercury Division for both J40-WE-10 and J40-WE-12 engines. The higher-powered versions proved to have a flawed compressor design and lacked a suitable control system. This left the Navy with only the earlier, lower-power engines. These were eventually used for early flight testing, but proved to be largely unusable. A particularly notorious use was in the McDonnell F3H-1N Demon, which proved to be dangerously underpowered with the smaller engines. The design was quickly grounded after repeated incidents caused by flying the now overweight airframe and a number of engine failures that led to the loss of the aircraft. A government investigation of the F3H-1N program issue failed to determine if pilots had been lost due solely to the engine issues. The grounded airframes were either scrapped or used for ground training. The F3H-2N used the Allison J71 engine. The J40 program was terminated in 1955, by which time all the aircraft it was to power were either grounded, cancelled or redesigned to use alternative engines. The J40's failure was among those that affected the most military programs. The program failure was primarily due to lack of investment in research and experimental resources by Westinghouse, leaving them unable to resolve the issues with the various models of the engines. In 1953 Westinghouse worked with Rolls-Royce to offer engines based on the Avon, which had similar performance but matured into an excellent design of even higher output. Westinghouse was out of the aircraft engine business by 1965 when their 6,200 lbf (28 kN) thrust, scaled-down version of the 12,000 lbf (53 kN) Avon 300-series engine, the XJ54, also failed to find a United States market. The J57 would also replace, for the U.S. Navy, the disastrous Westinghouse J40 that never fully materialized in acceptable form — Thomas Gardner, F-100 Super Sabre at War (en) |
| dbo:thumbnail | wiki-commons:Special:FilePath/Westinghouse_J40_1952.jpg?width=300 |
| dbo:wikiPageExternalLink | http://www.armytimes.com/legacy/rar/1-292308-1490368.php http://www.globalsecurity.org/wmd/systems/b-66.htm |
| dbo:wikiPageID | 6593522 (xsd:integer) |
| dbo:wikiPageLength | 15987 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID | 1124377950 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:Pratt_&_Whitney_J57 dbr:Rolls-Royce_Avon dbr:Rolls-Royce_Limited dbr:List_of_aircraft_engines dbc:1940s_turbojet_engines dbc:Abandoned_military_aircraft_engine_projects_of_the_United_States dbr:US_Navy dbr:United_States dbr:Douglas_F4D_Skyray dbr:McDonnell_F3H_Demon dbr:McDonnell_FH_Phantom dbc:Engineering_failures dbr:General_Electric dbr:Combustor dbr:Bureau_of_Aeronautics dbr:Westinghouse_Aviation_Gas_Turbine_Division dbr:Westinghouse_Electric_Corporation dbr:Westinghouse_J30 dbr:Westinghouse_J34 dbr:North_American_X-10 dbr:Allison_J71 dbr:Afterburner dbr:Thrust dbr:Douglas_A-3_Skywarrior dbc:Westinghouse_aircraft_engines dbr:Grumman_XF10F_Jaguar dbr:Time_Magazine dbr:McDonnell_F3H-1N_Demon dbr:Sea_level dbr:Turbojet dbr:Douglas_XA3D-1_Skywarrior dbr:Douglas_XF4D-1_Skyray dbr:Grumman_XF10F-1_Jaguar dbr:File:XF3H_CVA-43.jpg |
| dbp:combustion | dbr:Combustor |
| dbp:compression | 5.200000 (xsd:double) |
| dbp:compressor | single-spool, 11 stage axial , 50/50 action/reaction (en) |
| dbp:fueltype | JP-3, JP-4 and 100/130 avgas (en) |
| dbp:lists | *List of aircraft engines (en) |
| dbp:majorApplications | dbr:McDonnell_F3H_Demon |
| dbp:manufacturer | dbr:Westinghouse_Aviation_Gas_Turbine_Division |
| dbp:nationalOrigin | dbr:United_States |
| dbp:oilsystem | 30.0 |
| dbp:programCost | 2.81E8 |
| dbp:ref | Flight. (en) |
| dbp:specfuelcon | dry, wet (en) |
| dbp:thrust | dry, wet (en) |
| dbp:thrust/weight | 2.140000 (xsd:double) |
| dbp:turbine | two stage (en) |
| dbp:type | dbr:Turbojet afterburning turbojet (en) |
| dbp:wikiPageUsesTemplate | dbt:Westinghouse_aeroengines dbt:Cite_book dbt:Cite_news dbt:Cite_web dbt:Commons_category dbt:Convert dbt:More_footnotes dbt:Quote dbt:Reflist dbt:USS dbt:Jetspecs dbt:US_military_gas_turbine_aeroengines dbt:Aircontent dbt:Infobox_Aircraft_Engine |
| dcterms:subject | dbc:1940s_turbojet_engines dbc:Abandoned_military_aircraft_engine_projects_of_the_United_States dbc:Engineering_failures dbc:Westinghouse_aircraft_engines |
| rdf:type | yago:WikicatWestinghouseAircraftEngines yago:AircraftEngine102687423 yago:Artifact100021939 yago:Device103183080 yago:Engine103287733 yago:Instrumentality103575240 yago:Machine103699975 yago:Motor103789946 yago:Object100002684 yago:PhysicalEntity100001930 yago:Whole100003553 |
| rdfs:comment | El Westinghouse J40 iba a ser un motor turborreactor con postcombustión de alto rendimiento estadounidense. Fue propuesto por a principios de 1946 para propulsar varios aviones de caza, con una empuje de 33 kN (7.500 lbf) a nivel del mar en condiciones estáticas, pero una versión más potente con 11.000 lbf de empuje creada para el avión resultó ser un fracaso. Después de un programa de desarrollo problemático y con retrasos, una serie de fallos en servicio provocaron pérdidas de aeronaves y pilotos, lo que hizo que se retiraran de inmediato todos los aviones Demon propulsados por motores J40 y se cancelara el proyecto del J40 en el año 1955. (es) Conçu et produit par la société américaine (en), le Westinghouse J40 aurait dû être un turboréacteur à postcombustion à hautes performances. (fr) Il Westinghouse J40 era un motore turbogetto a compressore assiale dotato di postbruciatore realizzato dall'azienda statunitense tra gli anni quaranta ed i cinquanta. Promosso, nel 1946, dal Bureau of Aeronautics (ufficio dell'aviazione) della United States Navy il motore era accreditato per una spinta di 3 300 N (7 500 lbf) al livello del mare ed era destinato ad equipaggiare diversi aerei militari. (it) Westinghouse J40 byl jeden z prvních proudových motorů vysokých výkonů, vyvíjený od roku 1946 firmou Westinghouse Aviation Gas Turbine Division na žádost úřadu pro letectví amerického námořnictva (BuAer). Ten jej zamýšlel použít v několika stíhacích letadlech a bombardérech. Zatímco první konstrukce nižších výkonů byla úspěšná, pokusy zvětšit ji do plnohodnotné konstrukce pro velké výkony propadly a od designu bylo nakonec upuštěno. Projekt je považován za debakl a neúspěch. (cs) Das Westinghouse J40 war ein US-amerikanisches Turbojet-Triebwerk, das ab 1946 im Auftrag des der US Navy entwickelt wurde. Es handelt sich um ein Einwellentriebwerk mit einem 10-stufigen Axialverdichter, einer Ringbrennkammer und einer Axialturbine. (de) The Westinghouse J40 was an early high-performance afterburning turbojet engine designed by Westinghouse Aviation Gas Turbine Division starting in 1946 to a US Navy Bureau of Aeronautics (BuAer) request. BuAer intended to use the design in several fighter aircraft and a bomber. However, while an early low-power design was successful, attempts to scale it up to its full design power failed, and the design was finally abandoned, deemed a "fiasco" and a "flop". The J57 would also replace, for the U.S. Navy, the disastrous Westinghouse J40 that never fully materialized in acceptable form (en) |
| rdfs:label | Westinghouse J40 (cs) Westinghouse J40 (de) Westinghouse J40 (es) Westinghouse J40 (fr) Westinghouse J40 (it) Westinghouse J40 (en) |
| owl:sameAs | freebase:Westinghouse J40 yago-res:Westinghouse J40 wikidata:Westinghouse J40 dbpedia-cs:Westinghouse J40 dbpedia-de:Westinghouse J40 dbpedia-es:Westinghouse J40 dbpedia-fr:Westinghouse J40 dbpedia-it:Westinghouse J40 https://global.dbpedia.org/id/4geJG |
| prov:wasDerivedFrom | wikipedia-en:Westinghouse_J40?oldid=1124377950&ns=0 |
| foaf:depiction | wiki-commons:Special:FilePath/Westinghouse_J40_1952.jpg wiki-commons:Special:FilePath/XF3H_CVA-43.jpg |
| foaf:isPrimaryTopicOf | wikipedia-en:Westinghouse_J40 |
| is dbo:wikiPageDisambiguates of | dbr:J40 |
| is dbo:wikiPageRedirects of | dbr:Westinghouse_XJ40-WE-8 dbr:Westinghouse_40E dbr:Westinghouse_XJ40 dbr:Westinghouse_XJ40-WE-6 |
| is dbo:wikiPageWikiLink of | dbr:List_of_accidents_and_incidents_involving_military_aircraft_(1955–1959) dbr:List_of_aircraft_engines dbr:Boeing_B-52_Stratofortress dbr:Douglas_F4D_Skyray dbr:J40 dbr:Convair_F-102_Delta_Dagger dbr:McDonnell_F3H_Demon dbr:SM-64_Navaho dbr:General_Electric_J79 dbr:BMW_018 dbr:Westinghouse_Aviation_Gas_Turbine_Division dbr:Westinghouse_Electric_Corporation dbr:Westinghouse_J46 dbr:North_American_X-10 dbr:Accessory_drive dbr:Allison_J71 dbr:Douglas_A-3_Skywarrior dbr:Douglas_F5D_Skylancer dbr:Grumman_XF10F_Jaguar dbr:WS-201 dbr:Westinghouse_XJ40-WE-8 dbr:Westinghouse_40E dbr:Westinghouse_XJ40 dbr:Westinghouse_XJ40-WE-6 |
| is foaf:primaryTopic of | wikipedia-en:Westinghouse_J40 |
