NATO helicopter NH-90

MO Norway has adopted the first version of ASW helicopter NH90 NFH.
On the approach of another thirteen helicopters to find and defeat the enemy submarines.
To replace the obsolete helicopters «Westland Lynx» get new helicopters NH90, assigned to the air base Bardufoss.

History of creation.
Work on the creation of the helicopter began in 1986. The helicopter was created in the framework of programs from NATO. It was developed with the role of France, Britain, Germany, Italy and the Netherlands. First, in 1987 Britain refuses to share the role in the drafting of a helicopter in favor of a joint project with Italy EH-101 helicopter.
To control the type of survey and mass production companies make the union «NH Industries." It includes:
— German-French company "Eurocopter" with the role of equity 62.5 percent;
— Italian company "Agusta" with 32 percent of the equity role;
— Dutch company "Stork Fokker" with the role of equity 5.5 percent.
The program receives the title of «NH-90."
Development of the helicopter took place, followed by:
— development and creation of the forward fuselage, helical bearing bushings, blades and gearboxes control screws entrusted to the French section "Eurocopter";
— design and development of the central fuselage entrusted to the German branch "Eurocopter";
— development and creation of the stern of the fuselage, the main reduction gears and shafts for rotors entrusted to the Italian "Agusta";
— development and creation of the tail beams, chassis and gearbox crotch entrusted to the Dutch company.

Layouts helicopter.
The design work was done in 2 ways:
— ship-based;
— Transport options for ground and air forces.
Designed for ship-based option NFH (NATO Fregat Helicopter), to the task of finding and destroying submarines and surface ships. The helicopter is capable of producing guidance guided missiles beyond the horizon "surface-to-surface". Additional features — search and rescue operations, delivery of goods to the place of deployment.
Designed for ships of class "frigate", the application may be due to the use of carrier-based landing system "Harpoon", rescue hoist system and the addition of the blades.
The entire program under the title «NH-90" included the creation of the 1st layout for testing on the ground and 5 of prototypes to test the air.
At the end of September 1995 was tested only layout «GTV», intended for testing on the ground.
First mock test flight characteristics "PT1" at number | F-ZWTH comes from the French branch of the "Eurocopter" at the end of September 1995. After 2.5 months held the first ascent into the sky. This particular layout shown in 1996 at the Berlin air show.
Subsequent layout PT2, tail number | F-ZWTI out at the end of 1996. Rises into the sky in the middle of March 1997. After-permanent flight tests on the model set by-wire SU instead of the mechanical system installed. With it rises into the sky layout first of July.
Subsequent layout PT3 released into the sky at the end of '98 to test the reliability of on-board equipment.
Fourth in a row layout PT4 make a tactical troop-transport helicopter.
The last, fifth layout RT5 in the "marine" version of the Italian company produces "Agusta". Layout was the full version of the sea-based helicopters. First flight at the end of the layout makes Dec. 99.
From the beginning it was planned to make about 730 machines of this series helicopter. By the mid-'96 release by the alleged helicopter is reduced to 650 cars.
The program has been a lot of time in the balance of breakdown, it is constantly being revised and reworked. How many times because of the military budget of one of the participating countries have occurred scandals and friction.
The helicopter has an excellent market prospects sea-based helicopters. His place somewhere between the helicopter «Merlin» and «Sea Hawk».
Implementation EDSU puts it in line with the South American RAH-66 helicopter «Comanche». Inherited from the transport helicopter airframe shape of the radar makes it hardly noticeable.
Most first contract to supply helicopters signed in 1999.
It includes the creation of 152 helicopters for the countries participating in the project.
In 2001, it signed a contract for the supply of 14 helicopters NH-90 for the Norwegian Armed Forces. 6 helicopters will be ASW version 8 helicopters — in search and rescue.

The main data helicopter.
NH-90 can be operated at a temperature of from -40 to +50 degrees. Reliability helicopter is 97.5%. crew — 3 people. Two pilots and one of the main operator or additional hardware. Control of the helicopter can be only one pilot.
Helicopter body has a convex shape and is made of composite materials. As for Russian helicopters (for example KA-50), the least basic blocks to protect more basic units and aggregates.
Four-bladed propeller with the introduction of elastomer parts, the sleeve is made of titanium screws. The blades are also made of composite materials, own aerodynamic twist endings.
Managing screw — four-bladed hingeless. The blades structurally similar to the rotor blades.
Chassis production company «DAF Special Pradakts" tricycle, retractable. The front desk has two wheels, the other one at the wheel. Chance ballonets setting for a particular landing on water.
The helicopter has 2 motors "engine of Turbomeca / Rolls-Royce / MTU RTM-322-01/9." Manages digital system «FADEC».
Box is able to ensure the transfer of up to 3.4 thousand hp with 2 engines and about 2.7 thousand hp on one engine for half a minute. Box is able to work without oil for half an hour.
The fuel tanks are self-sealing damage from bullets 12.7-mm caliber. The total weight of the helicopter fuel about 2500 kg.
EDSU made French branch "Eurocopter". Has four channels, eliminates cross coupling control channels. EDSU developed for the flight at low and maximize low altitude terrain following.
The central microprocessor, developed by "Alenia" and «SFIM».
Helicopter equipped with a system approach "Thomson-CSF». Hydraulic work supports two mechanical pumps and 1 electronic pump. 4 electric generator and two batteries provide power onboard equipment.
On board fire suppression system installed.
Avionics is made with the introduction of the principle of open architecture. Several digital computer are kept under control all the equipment on board the helicopter.
Radio communications provided by a complex "Thomson-CSF TSC-2000 IFF», internal communication devices "Rod End Schwartz."
Devices to display information — 5 20×20 LCD.
Target hardware NH-90 in the form of sea-based:
— omits to fade away;
— passive and active RSL;
— AF sensor (magnetometer);
— Data Link channel 11;
— search radar.

The main features:
— diameter of the bore / screw 16.3 meters;
— diameter rolls / screw 3.2 meters;
— length of 19.5 meters helicopter;
— height of 5.4 meters;
— width of 4.3 meters;
— weight nesnar. — 5.4 tonnes;
— weight of the projectile. -8.7 Tons;
— average speed of 265 km / h;
— range of acts of 1000 km;
— combat radius of 250 km;
— flight time up to 4.5 hours;
— climb 660 feet per minute;
— 4.2 km altitude cei
ling;
Armament:
— total load up to 700 kg;
— SD-class "air-to-air";
— SD-class "air-surface";
— PKR AM-39 «Exoset»
— antisubmarine torpedoes: Mk.46, «Murena», A244;
— depth bombs.

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