Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight


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Army and Air Force, as well as the French army, which employed them extensively in Algeria. Based on the Algerian experience, Vertol proposed a new design—the Model , which immediately found favor with the Army. This new design utilized turbine engines instead of a reciprocating power plant, giving it greater power in a smaller package. The proven tandem rotor configuration was ideal for accommodating both internal and external loads. By the time the first samples were under production for the Army, the Marines had committed to the replacement of its existing Sikorsky HUS fleet, known as the UH from The Army ultimately decided the Model was too small for their needs and had it redesigned into a considerably larger version, which would soon become known as the CH Chinook.

The UH had been a vast improvement on its predecessors when it entered service in the mids, but it struggled heavily in the hot, humid conditions of Southeast Asia, and although the cabin could carry 12 armed troops, it struggled with half that load.

CH-46 Sea Knight Helicopters in Exercise Steel Knight 2014

The Phrog served admirably in support of Marine combat operations in Vietnam, including some very high profile operations such as the resupply of the besieged Khe Sanh garrison and the evacuation of the U. However, CH crews suffered heavily. A series of in-flight break ups led to a panicked search for technical solutions.

As one of the larger helicopters in service, it was also a juicy target for the enemy—one that had limited defensive firepower and a number of vulnerable systems.

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After Vietnam, the CH continued to serve with the changing tides of American military involvement. In some cases, observers argue that upgrades to helicopter sub-systems, especially radar, communications, and targeting systems, is the most cost effective way to satisfy current helicopter requirements. Upgrades often do not address reliability and readiness challenges that can plague aging helicopters. Stripping and re-building the airframe while adding new engines, transmissions and rotor assemblies is more cost effective in the long run in many instances.

In other cases, the need to replace legacy helicopters with new models justifies the time and expense of research and development and procurement programs.

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However, as in the case of the recent Comanche cancellation, new procurement programs can sometimes become too expensive for the benefits offered. This section describes ongoing Service plans to modernize specific aircraft. The following text focuses on the key issues for each modernization program. Those readers seeking detailed budget information may refer to the footnotes. Those readers seeking more background information can find a brief description of each aircraft type in Appendix I. The current inventory of all aircraft models is found in Appendix II. Many SOCOM modifications fall under a generic Rotary Wing Upgrades and Sustainment program which provides for ongoing survivability, reliability, maintainability, and operational upgrades as well as sustainment costs for fielded rotary wing aircraft and subsystems.

CRS-5 Army. More aircraft-specific modernizations and their costs are detailed below. All of these latter costs are included in the above total budget figures. Please note that very little was outlined with regard to any new plans concerning Army special operations aviation programs. See Richard L. Funding also would allow the Army to transfer continued Changes include a more powerful engine, a six-bladed main rotor, a four-blade tail rotor, a crashworthy fuel system and larger cargo door; a new cockpit display with two large-format, full-color screens; Hellfire missiles and the GeCAL 50 three-barrel One further modification includes the replacement of the 7.

CRS-8 are set to continue past FY, the Army, as part of its efforts to reallocate money from the Comanche cancellation, is planning to procure a total of armed reconnaissance helicopters as replacements for the entire OH fleet of approximately aircraft within the timeframe. These new aircraft are to be commercial off-the-shelf COTS purchases. It aims to replace the aging OH Kiowa Warrior fleet, beginning in For details concerning the funding reallocation as requested by the White House on behalf of the Office of Management and Budget, see Letter to the Speaker of the House of Representatives, Mar.

Comanche Block Is, with the exception of low observability. Note that these costs have already been included as part of the gross total figures outlined above in the SOCOM summary. The modernization program also includes the conversion of 50 Chinook SOA i. First, negotiations were underway with Boeing to produce basically allnew CHF Chinooks, rather than having to settle for refurbishment of much of the aircraft.

Second, the Army is buying seven new Chinooks in the near term, with an expected total buy of 56 platforms. Lastly, the Army has decided to convert all of its CHDs to the CHF configuration, not just , which included the accelerated recapitalization of 19 platforms over the next five years.


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CRS awareness and safety. The UH-1Y will also be special operations capable. Four have crashed, however, resulting in 30 fatalities, which has brought the whole program under repeated scrutiny and continued threats of cancellation. Still, funding to maintain an absolute minimum production rate 11 or 12 aircraft per annum has been forthcoming with 11 aircraft each in FY and FY already appropriated.

Of the 11 latter aircraft, two were slated for the Air Force for special operations missions. However, doubts have already arisen due to problems discovered in March which threaten to delay the critical operational evaluation testing scheduled for April Modifications include upgrading critical dynamic components, the engine control system, the electrical system, and the engine; installing on-board vibration monitoring equipment; and replacing the existing steel plate armor with lighter weight armor.

Marine Corps officials are deciding whether to replace MHE helicopters. Twelve of the former and eight of the latter will be attached to a carrier wing, with the R-models operating off of carriers and surface combatants and the S-models working from carriers and either oilers or other combat logistics force ships. These aircraft will assume anti-surface warfare, combat searchand-rescue, special warfare and organic airborne mine countermeasures missions. Production will shift to all-new airframes after the first batch of five rebuilds.

CRS Current plans call for rebuilds. Plans call for of the MHS helicopters to be compatible with the kits. While this article had a total number of platforms to be procured, official documents budget for only aircraft. But the failing grade was linked less to the aircraft than to supply problems. The helicopter itself was characterized as operationally effective and survivable. These include a new radio system to improve inter-communications with other services for all three types of H , engine housing improvements to reduce maintenance for the CHE and MHE variants , and the Helicopter Night Vision System for allweather capability for the CHE variant.

The Marine Corps plans to buy new CHs. The new CH X will look like the current E variant but otherwise will be a new aircraft. Light Helicopters UH-1N Huey — This program, which centers on tail boom replacements for all 62 helicopters, also includes night vision instrumentation and other low cost modifications. See Item 48, p.


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CRS to enhance operational capability while improving flight safety, reliability, and maintainability. The alterations being completed in FY included reprogrammings and seat replacement. Daniel K. See email, dated Dec. Budget breakdown: continued The programs described earlier in the modernization section of this paper have been represented in past and current budget request submissions. The following programs have not been included in procurement budget requests, but may gain traction in what appears to be a turbulent helicopter modernization environment.

A total of were originally required but the program was unfunded and projected by some to be unlikely to enter inventory until It may support the helicopter air-to-air and air-to-ground mission, troop transport, and search and rescue function. It may also be a candidate to incorporate tilt-rotor technology developed under the V program, and production start is projected for about the time frame. Maximum take off weight would be near 31 tons 68, lb , which would require a new engine, as well as new components, such as a four-blade rotor system.

Although it could have a strategic deployment capability up to 2, nautical miles, it is likely to be primarily a tactical helicopter with a combat radius of , kilometers. The FTR will be designed to carry a 10 to 20 ton internal combat payload or outsized external loads over its combat radius in challenging conditions.

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It will carry loads up to the size of fully loaded The Super Heavy Lift Crane could be mated with a high speed sealift ship to provide expeditionary capabilities for the Army. This paper design resembles the Sikorsky CHA Skycrane, but features a coaxial rotor system and small fuselage. With the capacity to lift a 20 ton payload — the weight of an army Future Combat Systems platform — as far as nm, it would exceed the 15 ton capacity and nm range of the U.

Provisional specifications for the V include a cargo capacity of 40, lbs. See Paul Jackson ed. CRS have cargo-carrying capacity equivalent to a CJ transport aircraft. While the Marines may have similar weight and range requirements, they must also require a minimum speed in order to keep up with the MVB Osprey. This is necessary to maintain a heavy-lift capability past the time that the current Super Stallion fleet begins to retire i. During this interim period, the MVB is scheduled to replace the remaining CHDs, thereby completely taking over the medium-lift troop transport mission from the CHEs which have been operating in the multimission role.

Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight
Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight
Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight
Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight
Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight
Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight
Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight Current Aircraft in the US Naval Aviation; CH-46 and UH-46 Sea Knight

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