The Kawasaki Ki-56 (一式貨物輸送機, Type 1 Freight Transport) was a Japanese two-engine light transport aircraft used during World War II. It was known to the Allies by the reporting name "Thalia". 121 were built between 1940 and 1943.
|Manufacturer||Kawasaki Kōkūki Kōgyō K.K.|
|Developed from||Lockheed Model 14 Super Electra|
Design and development
The Kawasaki Ki-56 was derived from the Lockheed Model 14 Super Electra aircraft that the Kawasaki Kokuki Kogyo Kabushiki Kaisha (The Kawasaki Aircraft Engineering Company Limited) had built under licence. In September 1939 Kawasaki was asked by the Koku Hombu to design an improved version as Ki-56. A number was also built by Tachikawa Hikoki K.K..
The Japanese invasion of Sumatra in the Dutch East Indies campaign began with a paratroop drop from Ki-56 transports on Airfield P1 and the oil refineries near Palembang. Royal Air Force Hawker Hurricane fighters flying from P1 to locate the Japanese invasion fleet passed the incoming Ki-56s, but thought them to be friendly Lockheed Hudsons (also developed from the Lockheed Model 14) returning from a raid. The defending anti-aircraft gunners at P1 were equally fooled, until the parachutes began to open. Once the AA guns opened fire one transport was shot down, another force-landed, and others veered off course, but the paratroop drop was effective and the airfield and oil installations were overrun.
- Crew: 4 (pilot, co-pilot, navigator, & radio operator)
- Capacity: 2,400 kg (5,300 lb)
- Length: 14.9 m (48 ft 11 in)
- Wingspan: 19.96 m (65 ft 6 in)
- Height: 3.6 m (11 ft 10 in)
- Wing area: 51.2 m2 (551 sq ft)
- Empty weight: 4,672 kg (10,300 lb)
- Gross weight: 8,024 kg (17,690 lb)
- Powerplant: 2 × Nakajima Ha-25 14-cylinder two-row air-cooled radial piston engines, 740 kW (990 hp) each
- Propellers: 3-bladed constant-speed propellers
- Maximum speed: 400 km/h (250 mph, 220 kn) at 3,500 m (11,500 ft)
- Range: 3,300 km (2,100 mi, 1,800 nmi)
- Service ceiling: 8,000 m (26,000 ft)
- Time to altitude: 12 min 38 s to 3,000 m (9,800 ft)
- Wing loading: 156.7 kg/m2 (32.1 lb/sq ft)
- Power/mass: 0.184 kW/kg (0.112 hp/lb)
Aircraft of comparable role, configuration and era
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- Woodburn Kirby, S. (2004). The War Against Japan: Vol. I: The Loss of Singapore. History of the Second World War, United Kingdom Military Series. Uckfield: HM Stationery Office. ISBN 1-845740-60-2.