Mitsubishi Ki-57

The Mitsubishi Ki-57 was a Japanese passenger transport aircraft, developed from the Ki-21 bomber, during the early 1940s.

Variants

Ki-57-I Army Type 100 Transport Model 1

Powered by two 708 kW (949 hp) Nakajima Ha5 KAI radial engines and a redesigned fuselage to accommodate 11 passengers.

MC-20-I

Same as above but built for civil use with Imperial Japanese Airways (Dai Nippon Koku KK).

Ki-57-II Army Type 100 Transport Model 2

Powered by two 805 kW (1,080 hp) Mitsubishi Ha-102 Zuisei 14-cylinder radial engines installed in redesigned nacelles.

Minor equipment and detail refinements were also incorporated.

MC-20-II

Same as above but built for civil use with Imperial Japanese Airways (Dai Nippon Koku KK).

L4M1

A small number of Ki-57-Is were transferred for test by the Japanese navy as transports and were redesignated L4M1.

Specifications

Ki-57-II

Crew

4

Capacity

11 passengers

Length

16.1 m (52 ft 10 in)

Wingspan

22.6 m (74 ft 2 in)

Height

4.86 m (15 ft 11 in)

Wing area

70.08 m2 (754.3 sq ft)

Empty weight

5,585 kg (12,313 lb)

Gross weight

8,173 kg (18,018 lb)

Max take-off weight

9,120 kg (20,106 lb)

Powerplant

2 × Mitsubishi Ha-102 Zuisei 14-cylinder air-cooled radial engine, 805 kW (1,080 hp) each for take-off

Propellers

3-bladed variable-pitch propellers

Performance

Maximum speed

470 km/h (290 mph, 250 kn) at 5,800 m (19,029 ft)

Range

3,000 km (1,900 mi, 1,600 nmi)

Service ceiling

8,000 m (26,000 ft)

Time to altitude

5,000 m (16,404 ft) 15 minutes 45 seconds

Wing loading

116.6 kg/m2 (23.9 lb/sq ft).