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Hangar

OH-1

Specifications:
Crew: 2
Length: 13.4 m
Fuselage length: 12.0 m
Main rotor diameter: 11.6 m
Wingspan: 3.0 m
The maximum width of fuselage: 1.0 m
Height: 3.8 m (with a tail rotor)
The area swept rotor: 105.68 m ²
Empty weight: 2450 kg
Normal take-off weight: 3550 kg
Maximum takeoff weight: 4,000 kg
Powerplant: 2 × turboshaft Mitsubishi TS1-10QT
Engine power: 2 × 888 liters. a. (2 × 662 kW (takeoff))

Maximum speed: 277 km / h
Cruising speed: 220 km / h
Combat radius: 200 km
Range: 550 km
Service ceiling: 4880 m
The load on the disk: 37.9 kg / m ²
The maximum operating load: + 3,5 / -1 g

Armament:
Combat Load: 132 kg
Guided Missiles:
rockets "air-to-air": 4 × Toshiba 91


Development of a light military helicopter began in 1991. Officially, it is intended to replace the helicopters, "Kawasaki / Makddonnel Douglas' OH-6. Self-Defense Forces of Japan needed an armed helicopter, able to coordinate the actions of anti-tank helicopters, such as the Bell AH-1S, to act on the battlefield, have excellent flight characteristics and good maneuverability. Specifically pointed out the possibility of anti-tank helicopters to protect helicopters and enemy planes. In fact, not created light multipurpose helicopter (which is OH-6), and helicopter gunships, fighter of small size, able to conduct reconnaissance and target designation exercise.

For possible successors OH-6 treated American and European models, but were rejected because of the inadequacy of self-defense force commanders. In the Japanese islands, covered with mountains, you need a light helicopter is very small sizes with a significant range and maneuverability. Said its say, and Japanese manufacturers, who are extremely interested in the creation of a new car. The situation is complicated by the Japanese military industry presence in the country's constitution a clause prohibiting the export of weapons. All the world's firms producing weapons, get very good money from its exports, and Japanese can only rely on the domestic market. The political leadership of the country reacted favorably to the consensus reached by the military and "sharks" military-industrial complex. To maintain its own production - a sacred thing, especially if this thing smells like a lot of money. Work on the helicopter, the designation OH-X, was given the "green light".

The general contractor on the program ON-X in 1992, was selected firm "Kawasaki Heavy Industries' (HIC), which accounts for 60% of the work. The company responsible for developing the forward fuselage, the dynamical system, final assembly and initial flight tests. At the firm, "Mitsubishi Heavy Industries» (MHI) and "Fuji Heavy Industries» (FHI) to set aside 20% of the total amount of work. The firm "Kawasaki" presented to the full-size mock 1994 The new helicopter, as expected, looks quite different from the OH-6. The narrow fuselage width of 1 m, the cockpit with tandem pilot and weapons operator, the wings of a small magnitude, fixed landing gear with tail wheel support - all this is more like a light anti-tank helicopter, such as the much larger size of the Italian A129 "Mongoose." The narrow fuselage combined with the tandem arrangement of the crew provides a good overview. This condition has been a top priority in the development of the helicopter.

In a dynamic system was first used in Japan bezsharnirnaya sleeve, made of composite materials (CM), and four-bladed main rotor. A rigid sleeve, designed by "Kawasaki", improves maneuverability at low altitudes. Approximately 40% of the design helicopter OH-X, including the rotor blades are made from the CM. Application vosmilopastnogo asymmetric tail rotor type "fenestron" reduces vibration, noise level and the likelihood of damage to the blades trees and other obstacles. The possibility of application of the NOTAR (reactive compensation system torque), but according to a report of representatives of the firm "Kawasaki", the system gives way to the tail rotor of the "fenestron" in the power ratios. At the same time, representatives of self-defense forces until the last moment saw NOTAR system as an alternative.

Helicopter OH-X is equipped with two turboshaft engines XTS1-10 rated at 885 hp. a. with a digital diagnostic system and the input filters of mechanical particles. The engines are designed by "MC" with the participation of firms' Ishikavadzima-Harima Heavy Industries "and" Kawasaki. " Information to judge the reasons for the choice of helicopter OH-X XTS1-10 engines and the engines themselves, very little. It is known that they were designed based on the GTD "Mitsubishi» MG5, which were first installed on the helicopter pilot RP-1. The new theater will also equip the projected desyatimestny civilian helicopter MN200. For installation on the OH-X offered LHTEC T800 engines and "Turbomeca" TM 333, but was rejected, apparently, in the first place, for political reasons. The Japanese helicopter must be Japanese power plant. Development of small size, light enough and powerful turboshaft engine was conducted at the Research Institute for Self-Defense Forces along with the development of the helicopter.

Equipped with two CCD XTS1-10 helicopter, the OH-X with a gross weight 3 - 5 m will have a maximum speed at sea level 260 km / h, the range of about 200 km and a flight with two external fuel tanks installed on the 1 hour helicopter avionics and primary information sensors are also developed in Japan. In each cabin, front - a pilot and rear - the second pilot (observer), uses two multi-function LCD display, coupled with the data bus MIL-STD 1533V. The composition of avionics equipment includes helmet-mounted displays, which increases the stability of the automatic flight control system. Control of the helicopter by means of side arms. Especially for the helicopter OH-X developed Hydrostabilized surveillance system with an overview of 110 degrees in azimuth and 40 degrees in elevation. The system includes a color television subsystem, capable of working with low light, laser rangefinder and thermal imager review the forward hemisphere. Installation of data in real time is not planned.

Wings set on the sides of the middle part of the fuselage, are used primarily for the suspension of SD class "air - air" short-range and create additional lift. Under each wing on two pylons can be suspended for two SD "Toshiba" type 92 on the inner pylons - fuel tanks with a capacity of 160 liters. Install anti-tank is not provided. Armament - four SD "air-to-air" - once again suggests that the OH-X - Helicopter-fighter, and not easy to scout. Helicopter rolled out in March 1996. The first flight test center at the airport Self-Defense Force helicopter flew in Gifu August 6, 1996 The flight lasted 16 minutes. Was achieved speed of 55 km / h and a height of 10m. The pilot test - by "Kawasaki" said Inayama good stability and control. In May 1997 the first prototype passed the Research Institute for Self-Defense Forces for further flight tests. The tests, which will include four cars, expected to be completed in April 2000 on the same year, is scheduled to begin production deliveries.

In 2000 the Japanese air force took the helicopter into service under the designation OH-1 Ninja.

Other model helicopters:Ka-58, RAH-66 Comanche, UH-60 Black Hawk, AH-64 Apache, Ka-52 Alligator, PAH-2 Eurocopter, Ka-50 Black Shark, AH-1W Super Cobra, Mi-24 Hint, Mi-8 Hip, AS-332 Super Puma, UH-1 Iroqoies, MD-500