Mitsubishi Ki-46.html



Mitsubishi Ki-46
Role	Twin-engine reconnaissance aircraft
Manufacturer	Mitsubishi
First flight	September, 1939
Introduced	July, 1941
Retired	1945
Primary user	Imperial Japanese Army, Imperial Japanese Navy
Number built	1,742

The Mitsubishi Ki-46 was a twin-engined reconnaissance plane used by the Japanese Imperial Army in World War II. Its Army designation was "Type 100 Command Reconnaissance Aircraft" (百式司令部偵察機); the Allied code name was "Dinah". This aircraft was first used by the Japanese Army in Manchuria and China, where seven units were equipped with it, and also at times by the Japanese Imperial Navy in certain reconnaissance missions over the north coasts of Australia and New Guinea. Mitsubishi factories made a total of 1,742 examples of all versions (types I-IV) during 1941-44.

The Japanese Army used this aircraft for the same type of missions (which were not authorized) over present-day Malaysia, during the months before the Pacific War. Later it was used over Burma, Indochina and Thailand; and in operations over the Indian Ocean area too.

In 1944-45, during the last days of the war, it was modified as a high altitude interceptor, with two 20 mm cannons in the nose and one 37 mm cannon in an "upwards-and-forwards" position, almost like the Luftwaffe's Schrage Musik night fighter cannon emplacements, for fighting against the USAAF B-29 over the metropolitan Japanese islands. It lacked stability for sustained shooting of the 37 mm weapon, was weak in its armour, and slow to climb.

The Ki-46 was also assigned to two whole Sentai (wings/groups), as well as individual Chutaicho (junior operational commanders) in the Imperial Japanese Army Air Service, during the Pacific War.

The United States captured some examples during conflict for evaluations.

Survivors

The only known survivor is a Ki-46-II Army Type 100 example, currently on display at RAF Cosford

Ki-46-II Army Type 100, RAF Cosford.

Versions

Ki-46

Prototype.

Ki-46 I Type 100

Reconnaissance version of the Army Type 100 (Mark I).

Ki-46 II (Mark 2)

- The first operational model of the series.

Ki-46 II KAI

Three-seat training version of the Army Type 100. Used for radio and navigation training, with a redesigned cabin, dorsal echeloned extension. Conversions of the Ki-46 II.

Ki-46 III

Prototype.

Ki-46 III

Reconnaissance version of Army Type 100 (Mark 3).

Ki-46 III

KAI Defense interceptor fighter version of the Army Type 100. Equipped with two 20 mm cannons, in the nose and one 37 mm cannon in the "Schräge Musik"-style dorsal frontal position.

Ki-46 III

Land strike version of the Army Type 100, without 37 mm cannon armament.

ki-46 IIIb

Ground-attack version.

Ki-46 IIIc

Only an unbuilt project.

Ki-46 IV

Prototype, equipped with two 1119 kW (1,500-hp) Mitsubishi Ha-112-II RU engines, with a turbocompressor of 1,100 hp, and more gasoline store capacity.

Ki-46 IVa/b

Series models of reconnaissance/fighter aircraft, only unbuilt projects

Operators

 Japan

 China

2 captured Ki-46s in communist Chinese hands served as ground attacker and trainer respectively and the last Ki-46 retired in early 1950s.

Specifications (Ki-46-II)

General characteristics

• Crew: 2 (pilot and observer)
• Length: 11.00 m (36 ft 1 in)
• Wingspan: 14.70 m (48 ft 3 in)
• Height: 3.88 m (12 ft 9 in)
• Wing area: 32.0 m² (344 ft²)
• Empty weight: 3,830 kg (8,444 lb)
• Loaded weight: kg (lb)
• Max takeoff weight: 6,500 kg (14,330 lb)
• Powerplant: 2× Mitsubishi Ha-102 14-cylinder radial engines, 807 kW (1,080 hp each) each

Performance

• Maximum speed: 604 km/h (375 mph)
• Range: 4,000 km (2,485 mi)
• Service ceiling 10,000 m (32,800 ft)
• Rate of climb: m/s (ft/min)
• Wing loading: kg/m² (lb/ft²)
• Power/mass: kW/kg (hp/lb)

Armament

• Guns: 1 × rearward-firing 7.7 mm Type 89 machine gun

References

Notes

Bibliography

External links

• http://www.vectorsite.net/avdinah.html Vectorsite article

See also