Helicopter Bell UH 1B

lenguyendl86

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Bell UH 1B Papercraft
The Bell UH-1 Iroquois (nicknamed "Huey") is a utility military helicopter designed and produced by the American aerospace company Bell Helicopter. It is the first member of the prolific Huey family, as well as the first turbine-powered helicopter in service with the United States military.

Development of the Iroquois started in the early 1950s, a major impetus being a requirement issued by the United States Army for a new medical evacuation and utility helicopter. The Bell 204, first flown on 20 October 1956, was warmly received, particularly for the performance of its single turboshaft engine over piston engine-powered counterparts. An initial production contract for 100 HU-1As was issued in March 1960. In response to criticisms over the rotorcraft's power, Bell quickly developed multiple models furnished with more powerful engines; in comparison to the prototype's Lycoming YT53-L-1 (LTC1B-1) engine, producing 700 shp (520 kW), by 1966, the Lycoming T53-L-13, capable of 1,400 shp (1,000 kW), was being installed on some models. A stretched version of the Iroquois, first flown during August 1961, was also produced in response to Army demands for a version than could accommodate more troops. Further modifications would include the use of all-aluminium construction, the adoption of a rotor brake, and alternative powerplants.

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  • [Fly Model 125] - Bell UH-1B Iroquois.pdf
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thienlong095

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tanphatdeptrai

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Bell UH 1B Papercraft
The Bell UH-1 Iroquois (nicknamed "Huey") is a utility military helicopter designed and produced by the American aerospace company Bell Helicopter. It is the first member of the prolific Huey family, as well as the first turbine-powered helicopter in service with the United States military.

Development of the Iroquois started in the early 1950s, a major impetus being a requirement issued by the United States Army for a new medical evacuation and utility helicopter. The Bell 204, first flown on 20 October 1956, was warmly received, particularly for the performance of its single turboshaft engine over piston engine-powered counterparts. An initial production contract for 100 HU-1As was issued in March 1960. In response to criticisms over the rotorcraft's power, Bell quickly developed multiple models furnished with more powerful engines; in comparison to the prototype's Lycoming YT53-L-1 (LTC1B-1) engine, producing 700 shp (520 kW), by 1966, the Lycoming T53-L-13, capable of 1,400 shp (1,000 kW), was being installed on some models. A stretched version of the Iroquois, first flown during August 1961, was also produced in response to Army demands for a version than could accommodate more troops. Further modifications would include the use of all-aluminium construction, the adoption of a rotor brake, and alternative powerplants.

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nocturno

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Campana UH 1B Papercraft
El Bell UH-1 Iroquois (apodado "Huey") es un helicóptero militar utilitario diseñado y producido por la empresa aeroespacial estadounidense Bell Helicopter. Es el primer miembro de la prolífica familia Huey, así como el primer helicóptero propulsado por turbinas en servicio con el ejército de los Estados Unidos.

El desarrollo de los Iroquois comenzó a principios de la década de 1950, un impulso importante fue un requisito emitido por el ejército de los Estados Unidos para un nuevo helicóptero utilitario y de evacuación médica. El Bell 204, que voló por primera vez el 20 de octubre de 1956, fue recibido calurosamente, particularmente por el rendimiento de su motor de turboeje único en comparación con sus homólogos propulsados por motores de pistón. En marzo de 1960 se emitió un contrato de producción inicial para 100 HU-1A. En respuesta a las críticas sobre la potencia del helicóptero, Bell desarrolló rápidamente múltiples modelos equipados con motores más potentes; en comparación con el motor Lycoming YT53-L-1 (LTC1B-1) del prototipo, que producía 700 shp (520 kW), en 1966, el Lycoming T53-L-13, capaz de 1.400 shp (1.000 kW), se estaba instalando en algunos modelos. También se produjo una versión ampliada del Iroquois, que voló por primera vez en agosto de 1961, en respuesta a las demandas del Ejército de una versión que pudiera acomodar a más tropas. Otras modificaciones incluirían el uso de una construcción totalmente de aluminio, la adopción de un freno de rotor y motores alternativos.

3Ekh1.jpg
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