Blackhawk Helicopter Final 062310

8/13/2019 Blackhawk Helicopter Final 062310

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BLACK HAWK Helicopter Backgrounder

Designed to stringent U.S. Military standards, the BLACK HAWK has become the leader in multi-mission type aircraft. Its ability to be quickly deployed and reconfigured for various missions during wartime as well as peace time has made this versatile aircraft a valued asset. The HAWK family ofhelicopters is currently being used by the U.S. Military services and in 29 different countries aroundthe world. Over 3,000 HAWK variants are in use in today and have flown more than 9 million hours.

The BLACK HAWK has proven itself in the most extreme and rigorous environments.

The BLACK HAWK helicopter is a twin-engine rotary wing aircraft with a maximum gross weight of22,000 pounds (9,977 kilograms). The maximum ferry weight of the aircraft is 23,500 pounds (10,659kilograms).

The main rotor system is 53 feet, 8 inches (16.37 meters) in diameter.The S-70i helicopter has four fully articulated titanium/fiberglass composite blades with elastomericbearings. The UH-60M helicopter is configured with four composite fiberglass wide-chord main rotorblades designed to provide greater lift in hot-high conditions.

The 11.0 foot (3.35 meters) diameter, four-blade tail rotor is a bearing-less cross-beam rotor cantedupward 20 degrees, providing an additional element of vertical lift. Both main and tail rotor blades maybe folded manually to accommodate storage or air-transportability. The fuselage has a cargo floor with300 pounds per square foot capacity (1,464 kilograms/square meter), large sliding cargo doors andlarge sliding windows at the gunner/crew chief stations.

The volume of the cabin is 410 cubic feet (11.61 cubic meters). The horizontal tail, or stabilator, isremovable and the vertical tail, or tail rotor pylon, is foldable for air-transportability. Thefuselage/landing gear combination is designed to absorb the energy of a vertical crash landing of 38feet per second (11.6 meters/second) sink speed with energy absorbed in the landing gear, airframe,and stroking seats.

The fixed main and tail gears have two-stage oleo struts which can provide a kneeling capability andresistance to crash loads. The landing gear is designed for normal landing vertical sink speeds of 9feet (2.7 meters) per second.

The BLACK HAWK helicopter produced today is powered by two General Electric T700-GE-701Dengines mounted on top of the cabin, just aft and to the sides of the main gearbox. The engines arestarted pneumatically using bleed air from the on-board auxiliary power unit (APU). This allows theaircraft to start anywhere without the aid of external power sources.

The engine cowlings, when opened, form a two-man work platform that enables maintenance accessto components forward of the main gearbox. Two interchangeable, crash-resistant, self-sealing fueltanks are located just aft of the cabin. The drive system consists of main, intermediate, and tailgearboxes with interconnecting shafts.

The main transmission is modular in construction and is oil lubricated, as are the intermediate and tailgearboxes. The BLACK HAWK helicopter has a redundant, hydro-mechanical flight control system. Itincludes three two-stage main rotor servos, a stability augmentation system (SAS), a flight pathstability system (FPS), and a triply redundant hydraulic supply.

The electrical system is powered by two ac, oil-cooled generators, each with an independent drive. A

third APU-driven generator provides emergency electrical power and power for ground maintenance.The battery provides ignition for APU starting and limited power for lighting and for radio use when theengines and APU are not operating.

Flight-essential components of the BLACK HAWK helicopter are either structurally shielded orredundant and separated to provide defense against small arms fire. The crash-resistant pilot andcopilot seats are armored to protect against such a threat. The cabin includes soundproofing and isheated by bleed air from the engines. Anti-icing is provided electrically for the windshield andpneumatically for the engine inlets. De-icing is also provided for the main and tail rotor systems.


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The aircraft main transmission is rated at 3,400 hp and consists of five modules: a main housing module, twocommon engine-input modules, and two common accessory modules. The common input modules areinterchangeable to reduce spare parts requirements and are quickly and easily replaced in the field.

Dual lubrication pumps permit continued operation even if one pump becomes inoperative due to ballisticdamage. The gearbox is lubricated internally via cored passages. The only external lines are connected tothe oil cooler, thereby minimizing potential external line damage or leaking. Oversize bearings are

incorporated and tests have demonstrated the ability of the transmission to carry flight power loads for overone hour after loss of the lubricant.

Each module of the main transmission is isolated and is monitored by a chip detector with fuzz-burn-offfeature used to determine whether the indication is true or false. If false, the indicator light goes out. If true,cautionary procedures are followed, but because the modules are isolated, chips are contained, protecting theremainder of the transmission. The tail and intermediate gear boxes also incorporate the same type chipdetection/monitoring system.

Todays BLACK HAWK helicopter is powered by two high compression ratio General Electric T700-GE-701Dengines that incorporate the most modern technology available in todays shaft turbine engines. The T700series engines were developed to power the new generation of utility and attack helicopters, and they aredemonstrating new plateaus of reliability, maintainability, and fuel efficiency. Coupled with the efficiencies ofits current rate of production, this means the T700 series engines will provide substantial benefits in terms oflife cycle cost, the ultimate measure of the worth of a system.

The T700 engine family incorporates modular construction, which permits change of any modulewithout removal of the entire engine. An inlet particle separator (IPS) is integral to the engine and providessand and dust separation from inlet air. The inlet is anti-iced, and the engine incorporates self-containedlubrication, a history recorder, pneumatic starting, and top-mounted accessories and controls for ease ofmaintenance.

Versatile Platform ConfigurationsThe Utility Transport configuration of the BLACK HAWK typically includes cabin seating for 11 soldiersand all their gear. For dense troop configurations, the BLACK HAWK helicopter can be configured totransport up to 20 soldiers and gear. This flexible solution maximizes the effectiveness of air troopmovements. Troop seats can be removed and stored within the aircraft within 15 minutes to allow aclean cabin configuration. Three hundred ninety-six cubic feet of cabin allows for the transport ofinternal loads, which can be safely secured and distributed across a 300 psi floor. The aircraft can be

reconfigured to meet a variety of mission in a short time frame. This gives both ground and airbornecommanders the flexibility needed to adjust to a changing environment.

External Load missions are often required for extensive troop and equipment movements. The BLACKHAWK helicopter has a 9,000-pound cargo hook capacity that continues to make the aircraft a force-multiplier in strategic posturing. Artillery Guns, Air Defense Artillery, Light Trucks, Field Fuel Cells,Shelter Systems and whatever else that is needed can be strategically located. No specialreconfiguration of the aircraft is needed when using the cargo hook. It is conveniently stowed withinthe cargo floor and is accessible anytime.

BLACK HAWK helicopters have a long legacy of Combat Search and Rescue. The primary mission ofCSAR helicopters is to conduct day or night operations into hostile environments to recover downedaircrew or other isolated personnel in combat environments. Because of its versatility, the BLACKHAWK helicopter also is tasked to perform military operations other than war. These missions include

civil search and rescue, medical evacuation, disaster relief, international aid, and counter-drugactivities. Mission equipment can include a retractable in-flight refueling probe to extend range. On-board medical stations can be equipped to perform critical life-saving measures. Rescue equipmentincludes a hoist capable of lifting a 600-pound load from a hover height of 200 feet, and a personnellocating system that is compatible with the survival radios can provide range and bearing informationneeded to quickly locate survivors and minimize search time.

Dependable and SurvivableThe BLACK HAWK has been revered by military units from around the world for its ease ofmaintenance. BLACK HAWK units deployed to the field can often sustain combat flight operations for


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as long as the supply chain element can meet their operational tempo requirements. Unit andIntermediate maintenance activities have been performed in the most rigorous of environmentalconditions. This is a testament to both the aircrafts durability and its design that incorporates aproactive approach to the performance of routine maintenance. Component placement that is easy toaccess in well-designed work areas, allows for maintenance personnel and air crews to quicklyinspect, diagnosis, and repair the aircraft. This makes scheduled and unscheduled maintenanceeasier, more efficient, and reduces the amount of downtime needed perform maintenance. It is no

wonder that BLACK HAWK units have the highest rate of operational readiness when compared to theother fleet aircraft. When air support is needed and combat reaches a high level of activity, the BLACKHAWK is ready to fly and its crew is confident that the aircraft will perform its mission, to its maximumpotential.

The BLACK HAWK helicopter was designed with strong emphasis on ballistic survivability. This designhas been proven time and time again. Every flight-essential system has been thoroughly analyzed andballistically tested for verification. The airframe structure was designed for crashworthiness to the moststringent of military standards. In a crash, the high-strength aluminum structure prevents intrusion ofhigh-mass items into the occupied space and helps to limit loads on the occupants. High-speedmachined aluminum construction gives the helicopter a low risk, a readily repairable airframe withredundant load paths and reduced parts count. Materials and design minimize susceptibility tocorrosion. To prevent post-crash fires, the BLACK HAWK helicopter employs a suction fuel systemthat has no boost pumps. As an additional measure, the fuel system is made safe by self-sealingbreakaway valves, fuel lines, and fuel tanks and crashworthy fuel cells. Safety, survivability, andcrashworthiness of the BLACK HAWK helicopter are inherent in the design.

Survivability features include:23 mm tolerant Main Rotor Blades and HubArmored pilot and copilot seats provide protection for 7.62mmModular transmission with 30 minutes of fail-safe lubricationSpall resistant windshield and cockpit structureCrash resistant fuel tanksTriple redundant hydraulic and electrical systemRedundant fail safe tail rotor controlsImproved Hover Infrared Suppression System

Crashworthiness features include:

High mass components retained in 20/20/18g crash conditionsEnergy absorbing landing gear that absorbs 30ft per secAnti-plow keel beamsWire strike prevention systemEnergy absorbing crew and troop seats that stroke downwardJettison-able cockpit doorsCabin designed to FAA regulations (G-loading, egress, and flammability)


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Current Production BLACK HAWK Helicopters

UH-60M BLACK HAWK - is the latest US ARMY variant of the BLACK HAWK helicopter. The UH-60Mhelicopter culminates more than 30 years of technological advancement, improved performance andreal world experience. This advanced BLACK HAWK aircraft serves dependably in the most extremeconditions found on earth. With the integration of the U.S. Army's Future Combat Systems and

automated aircraft health monitoring, the UH-60M provides superior vertical lift and is the "intelligent"choice for the battlefield of tomorrow. Production of the UH-60M is based in Stratford, CT with FMScompletion of customer options conducted at Military Derivatives Completion Center at Horsehead,NY.

HH-60M BLACK HAWK - the HH-60M MEDEVAC (medical evacuation) is the US ARMYs dedicatedmedical evacuation helicopter that provides comprehensive modern medical care from the injury sitewhile in route to a distant hospital. Onboard systems include environmental control system, oxygengenerating system, respiratory care, patient vital sign monitoring, and an external electrical rescuehoist. Production of the HH-60M is based at Stratford, CT.

S-70iTM

BLACK HAWK is latest variant of the BLACK HAWK, based on the UH-60M BLACK HAWKhelicopter. The S-70i helicopter has been designed with the specific features and capabilities mostrequested by international military customers, at an affordable price. The S-70i BLACK HAWKhelicopter is the culmination of 30 years of engineering excellence and real world military experience.This affordable new breed of BLACK HAWK is robustly configured with a state-of-the-art cockpit. Builtto a strict military standard, S-70i BLACK HAWK helicopters are ready to support operations aroundthe world. S-70i is currently in production at PZL Mielec, Poland.

BATTLEHAWKTM

is the armament solution for the BLACK HAWK helicopter. Sikorsky Aircraft nowoffers three levels of weapons integration that can be fitted to accommodate legacy as well as newBLACK HAWK helicopters. The BATTLEHAWK system is a versatile, durable and cost effectivesolution that meets the most stringent requirements. Best of all, as a BLACK HAWK aircraft, theweapons can be removed to establish the desired profile for the next mission.

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Blackhawk Helicopter Final 062310