Sikorsky CH-53K King stallion(Helicóptero de transporte pesado)(EEUU)

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Sikorsky CH-53K King stallion(Helicóptero de transporte pesado)(EEUU)

Mensaje por radagast el 23/5/2016, 1:10 am

Sikorsky CH-53K King Stallion

CH-53K King Stallion durante la ceremonia de lanzamiento en Sikorsky Aircraft
Tipo Helicóptero de transporte pesado
Fabricante Bandera de los Estados Unidos Sikorsky Aircraft
Introducido planeado para 20181
Estado en desarrollo
Usuario Bandera de los Estados Unidos Cuerpo de Marines de los Estados Unidos
Coste del programa 25 335,2 millones de US$ (2015)2
Coste unitario 92,796 millones de US$ (AF15)2
126,677 millones de US$ (con R&D)2
Desarrollo del Sikorsky CH-53E Super Stallion
[editar datos en Wikidata]

El Sikorsky CH-53K King Stallion es un helicóptero de transporte de carga pesado desarrollado por Sikorsky Aircraft para el Cuerpo de Marines de los Estados Unidos (USMC). Las características del diseño incluye tres motores de 7500 shp (5590 kW), nuevas palas de materiales compuestos, y una cabina más amplia que las variantes anteriores del CH-53. Será el helicóptero más grande y más pesado en el ejército de Estados Unidos. El USMC tiene previsto recibir 200 helicópteros a un costo total de 25 mil millones de dólares. Realizó el primer vuelo el 27 de octubre 2015.3

https://es.wikipedia.org/wiki/Sikorsky_CH-53K_King_Stallion
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Re: Sikorsky CH-53K King stallion(Helicóptero de transporte pesado)(EEUU)

Mensaje por radagast el 23/5/2016, 1:11 am

​Sikorsky CH-53K likely to fall short of upper lifting requirement

   19 May, 2016 BY: James Drew

The US Marine Corps ideally wants its new Sikorsky CH-53K King Stallion to carry 13.6t (30,000lb) externally over 110nm (204km) unrefueled, but early analysis indicates that it will fall approximately 907kg short of that “objective” key performance requirement.

The minimum target is 12.2t (27,000lb) over 110nm in high, hot environments, which US Naval Air Systems Command officials expect the in-development aircraft to comfortably achieve. However, CH-53K integrated product team deputy Col John Neville says it is too early to tell exactly what external load target the CH-53K will meet or what programmatic steps the NAVAIR might take to bump up the aircraft’s performance to the objective requirement.

“From an acquisition and requirements standpoint, that’s the trade space,” Neville said during a teleconference briefing at the 72nd annual American Helicopter Society (AHS) International meeting in West Palm Beach, Florida on 19 May. “The engines are extremely powerful, but one of the things we do know is right now we’re probably somewhere in-between those two values [of 27,000lb and 30,000lb].

“That’s all from an analysis standpoint right now. As we continue to put the aircraft through its paces, we get to refine where it’s at. We’re not specifically targeting the lower band, we’re obviously shooting for the 30,000lb design.”

He says once the aircraft’s true lifting capacity is validated through envelope expansion, the programme office will try to figure out what the limiting factors are and what improvements could be pursued to increase external lifting capacity. The fly-by-wire, triple-engine aircraft is designed with roughly three times the lifting capacity of the Sikorsky CH-53E model that it will replace.

Asset Image

First CH-53K external load test at Sikorsky's test site in West Palm Beach, Florida

Sikorsky

The King Stallion employs seven “fourth-generation” Sikorsky swept-tip composite main rotor blades, three GE Aviation T408 engines and a split-torque gearbox assembly. The first aircraft flew on 27 October and the second joined the flight test campaign on 22 January.

External load testing began on 19 April with one aircraft lifting a 5.4t external load in hover. Once fully fielded, the aircraft will be expected to carry the approximately 12.2t up-armoured high mobility multipurpose wheeled vehicle and combat-loaded crew, 14t light armoured vehicle, and future 10t joint light tactical vehicle. It can also transport up to 30 combat-loaded Marines.

The aircraft has three external hooks for ferrying armoured vehicles, artillery pieces and other equipment assigned to the Marine Air-Ground Task Force (MAGTF). It will become the US military’s primary means of transporting heavy materiel and troops into hostile combat zones by helicopter as a compliment to the lighter 22.6t maximum gross weight Boeing CH-47 Chinook.


The expeditionary service is buying 200 aircraft to fill eight active duty squadrons, two reserve squadrons and one “fleet reserve” group.

According to programme officials, the US Navy does not plan to replace the MH-53E Sea Dragon airborne mine countermeasures aircraft with the CH-53K, as it has other systems fulfilling that role going forward.

Future customers could include existing CH-53 operators Germany, Israel and Japan. Sikorsky foresees a market for up to 300 of the specialised heavy-lift helicopters, including the 200 Marine Corps examples

https://www.flightglobal.com/news/articles/sikorsky-ch-53k-likely-to-fall-short-of-upper-lifti-425565/


Última edición por radagast el 23/5/2016, 1:13 am, editado 1 vez
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Re: Sikorsky CH-53K King stallion(Helicóptero de transporte pesado)(EEUU)

Mensaje por radagast el 23/5/2016, 1:11 am

USMC buys long-lead items for Sikorsky CH-53K production

25 April, 2016 BY: James Drew Washington DC

The US government has made its first down payment for post-development, operational Sikorsky CH-53K King Stallions, with $25 million awarded to the Lockheed Martin-owned helicopter manufacturer last week for long-lead parts.

The US Marine Corps plans to acquire 200 CH-53K super-heavy-lift helicopters to replace its war-weary fleet of E-model Super Stallions for the transport of troops and heavy cargo into battle.

US Naval Air Systems Command (NAVAIR), which runs the development programme, says the money buys parts for six aircraft. The first low-rate initial production (LRIP) lot buys two aircraft and Lot 2 buys four.

NAVAIR says the Pentagon is scheduled to complete a "Milestone C" review of the CH-53K programme in the second quarter of 2017, which will authorise production of the first two aircraft in Lot 1.

Six aircraft are already being assembled as part of the engineering and manufacturing development (EMD) programme, including two that are currently flying and four more ordered in 2013 to support operational evaluations and mission testing.

Asset Image

The Sikorsky CH-53K entered development in 2006 and first flew in October 2015

Sikorsky

Despite some delays, the marines still aim to declare initial operational capability (IOC) with four CH-53Ks in 2019 and a full-rate production decision is expected in 2020.

“All acquisition programmes are facing budget pressures these days, so awarding this contract a few weeks after obtaining authorisation is a major win for the programme and Marine Corps aviation,” says USMC H-53 heavy-lift helicopters programme manager Col Hank Vanderborght. “This contract ensures the programme will have all required long lead materiel to begin building the LRIP 1 aircraft a year from now when the programme achieves Milestone C.”

https://www.flightglobal.com/news/articles/usmc-buys-long-lead-items-for-sikorsky-ch-53k-produc-424581/
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