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Kawasaki OH-1

The Kawasaki OH-1 (nickname: "Ninja") is a military scout/observation helicopter developed and manufactured by the Kawasaki Aerospace Company. The primary operator is the Japan Ground Self-Defense Force (JGSDF), who originally procured the OH-1 as a domestically-produced successor to their existing OH-6D Loach fleet. The OH-1 has the distinction of being the first helicopter to be entirely produced in Japan.[2]

 

In addition to its use an observation helicopter, it can also be armed with various munitions to directly participate in combat; such weapons include a limited quantity of anti-tank missiles or air-to-air missiles for self-defense purposes. Several variants of the OH-1 have been proposed, these have included derivatives of the type to serve as an attack helicopter as well as an aborted project to develop utility helicopter based on OH-1. As of March 2014, a total of 38 OH-1s have entered service with the JGSDF, so far these have complemented the existing OH-6Ds rather than replace them.

Specifications (OH-1)

 

Cockpit of an OH-1

 

Fenestron tail rotor, note the asymmetrical blades

Data from Kawasaki Aerospace[2]

 

General characteristics

 

Crew: 2 (pilot and observer)

Length: 12 m (39 ft 4 in)

Height: 3.8 m (12 ft 6 in)

Empty weight: 2,450 kg (5,401 lb)

Max takeoff weight: 4,000 kg (8,818 lb)

Powerplant: 2 × Mitsubishi TS1-M-10 [ja] turboshaft engines, 660 kW (890 hp) each

Main rotor diameter: 11.6 m (38 ft 1 in)

Main rotor area: 105.7 m2 (1,138 sq ft)

Performance

 

Maximum speed: 278 km/h (173 mph, 150 kn)

Cruise speed: 220 km/h (140 mph, 120 kn)

Range: 550 km (340 mi, 300 nmi)

Ferry range: 720 km (450 mi, 390 nmi)

Service ceiling: 4,880 m (16,010 ft)

Armament

Hardpoints: 4 × pylons for rockets, gun pods, anti-tank missiles, or Type 91 air-to-air missiles