avia.wikisort.org - Helicopter

The Bell UH-1Y Venom[3] (also called Super Huey)[4] is a twin-engine, medium-sized utility helicopter built by Bell Helicopter under the H-1 upgrade program of the United States Marine Corps. One of the latest members of the numerous Huey family, the UH-1Y is also called "Yankee", based on the NATO phonetic alphabet pronunciation of its variant letter.[5] The UH-1Y was to have been remanufactured from UH-1Ns, but in 2005, it was approved for the aircraft to be built as new. After entering service in 2008, the UH-1Y replaced the USMC's aging fleet of UH-1N Twin Huey light utility helicopters, first introduced in the early 1970s. In 2008 it entered full-rate production,[6] with deliveries to the Marines completed in 2018.[7]

UH-1Y Venom
A UH-1Y in flight
Role	Utility helicopter Type of aircraft
National origin	United States
Manufacturer	Bell Helicopter
First flight	20 December 2001[1]
Introduction	8 August 2008
Status	In service
Primary user	United States Marine Corps
Produced	2001–present
Number built	160[2]
Developed from	Bell UH-1N Twin Huey

Development

Over the years, new avionics and radios, modern door guns, and safety upgrades have greatly increased the UH-1N's empty weight. With a maximum speed around 100 knots (190 km/h) and an inability to lift much more than its own crew, fuel, and ammunition, the UH-1N had limited capabilities as a transport.^{[citation needed]}

In 1996, the United States Marine Corps launched the H-1 upgrade program. A contract was signed with Bell Helicopter for upgrading 100 UH-1Ns into UH-1Ys and upgrading 180 AH-1Ws into AH-1Zs.[8][9] The H-1 program modernized utility and attack helicopters with considerable design commonality to reduce operating costs. The UH-1Y and AH-1Z share a common tail boom, engines, rotor system, drivetrain, avionics architecture, software, controls, and displays for over 84% identical components.[10][11]

Originally, the UH-1Y was to have been remanufactured from UH-1N airframes, but in April 2005, approval was granted to build them as new helicopters.[6][12] Bell delivered two UH-1Ys to the U.S. Marine Corps in February 2008,[13] and full-rate production was begun in September 2009.[14] The Marine Corps purchased 160 Y-models to replace their inventory of N-models.[15]

Design

The UH-1Y variant modernizes the UH-1 design. The Y-model upgrades pilot avionics to a glass cockpit, adds further safety modifications, and provides the UH-1 with a modern forward-looking infrared system. Engine power was increased. Its most noticeable upgrade over previous variants is a four-blade, all-composite rotor system designed to withstand up to 23 mm rounds. By replacing the engines and the two-bladed rotor system with four composite blades, the Y-model returns the Huey to the utility role for which it was designed.

A 21-inch (530 mm) fuselage extension just forward of the main door was added for more capacity. The UH-1Y features upgraded transmissions and a digital cockpit with flat-panel multifunctional displays. Compared to the UH-1N, the Y-model has an increased payload, almost 50% greater range, a reduction in vibration, and higher cruising speed.[10][16][17]

Operational history

The UH-1Y and AH-1Z completed their developmental testing in early 2006.[18] During the first quarter of 2006 the UH-1Ys were transferred to the Operational Test Unit at NAS Patuxent River, where they began operational evaluation testing.[19] In February 2008, the UH-1Y and AH-1Z began the second and final portion of testing.[20] On 8 August 2008, the Marine Corps certified the UH-1Y as operationally capable, and it was deployed for the first time in January 2009 as part of the aviation combat element of the 13th Marine Expeditionary Unit.[21][22] The UH-1N Twin Huey was retired by the Marines in August 2014, making the UH-1Y the Marine Corps' standard utility helicopter.[23]

On 11 October 2017, the Defense Security Cooperation Agency notified the United States Congress of the potential sale of 12 UH-1Ys and related systems and support to the Czech Republic for a cost of US$575 million.[24] In December 2019, an order for eight UH-1Y helicopters was approved.[25][26]

Operators

 Czech Republic

• Czech Air Force (8 on order)[26] Additional 2 to be transferred at no cost via the Excess Defense Articles programme.[27]

 United States

• United States Marine Corps[28]
  • HMLA-167[29]
  • HMLA-169[30]
  • HMLA-267
  • HMLA-269[31]
  • HMLA-367[32]
  • HMLA-369^{[citation needed]}
  • HMLA-469[33]
  • HMLA-773[34]
  • HMLAT-303[35]

Specifications

Data from Bell UH-1Y guide,[10] International Directory of Civil Aircraft[36]

General characteristics

• Crew: 2
• Capacity: 6,660 lb (3,021 kg) / up to ten crashworthy passenger seats / six litters / equivalent cargo[37]
• Length: 58 ft 4 in (17.78 m)
• Height: 14 ft 7 in (4.45 m)
• Empty weight: 11,840 lb (5,371 kg)
• Max takeoff weight: 18,500 lb (8,391 kg)
• Powerplant: 2 × General Electric T700-GE-401C turboshaft, 1,828 shp (1,363 kW) each for 2 minutes 30 seconds

1,546 hp (1,153 kW) continuous

• Main rotor diameter: 48 ft 10 in (14.88 m)
• Main rotor area: 1,808 sq ft (168.0 m²)
  
• Blade section: Narramore[38]

Performance

• Maximum speed: 164 kn (189 mph, 304 km/h)
• Cruise speed: 158 kn (182 mph, 293 km/h)
• Never exceed speed: 198 kn (228 mph, 367 km/h)
• Combat range: 130 nmi (150 mi, 240 km) with 2,182 lb (990 kg) payload
• Endurance: 3 hours 18 minutes
• Service ceiling: 20,000 ft (6,100 m) +
• Rate of climb: 2,520 ft/min (12.8 m/s)

Armament

• 2 external stations for 70 mm (2.75 in) Hydra 70 or APKWS II[39] rockets
• 2 pintle mounts for 7.62×51 mm M240D machine guns, .50 in (12.7 mm) GAU-21 machine guns, or 7.62×51 mm NATO GAU-17/A Gatling guns

See also

• U.S. helicopter armament subsystems
• List of active United States military aircraft

Related development

• Bell 212
• Bell 412
• Bell UH-1N Twin Huey
• Bell AH-1Z Viper

References

External links

• UH-1Y Venom page on BellHelicopter.com
• UH-1Y Venom page on US Navy RDA site
• UH-1Y Venom page on GlobalSecurity.org
• "US Navy proposes more UH-1Ys, AH-1Zs despite test phase setback", Flight International, 22 August 2008.

На других языках

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- [en] Bell UH-1Y Venom

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[fr] Bell UH-1Y Venom

Le Bell UH-1Y Venom (venin en français) est un hélicoptère militaire américain construit par Bell Aircraft Corporation. Il est destiné à remplacer le Bell UH-1 Iroquois dans le corps des Marines.

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[it] Bell UH-1Y Venom

Il Bell UH-1Y Venom[4] (o Super Huey[5]) è un elicottero bimotore militare medio costruito dall'azienda statunitense Bell Helicopter Textron. L'UH-1Y è stato progettato per sostituire i vecchi Bell UH-1N introdotti nel Corpo dei Marines nel 1970.

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[ru] Bell UH-1Y Venom

UH-1Y Venom (или Yankee)  — многоцелевой вертолёт фирмы Bell Helicopter Textron на базе UH-1N, предназначенный для корпуса морской пехоты США.

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