Tachikawa Ki-77

The Tachikawa Ki-77 was a Japanese very long-range experimental transport and communications aircraft of World War II derived from a design commissioned by a newspaper to break the flight distance record set by a rival.

It was a low-wing cabin monoplane with twin piston engines and a tail wheel undercarriage.

Only 2 aircraft were built.

Specifications

Crew

5

Length

15.3 m (50 ft 2 in)

Wingspan

29.438 m (96 ft 7 in)

Height

3.85 m (12 ft 8 in)

Wing area

79.56 m2 (856.4 sq ft)

Empty weight

7,237 kg (15,955 lb)

Gross weight

16,725 kg (36,872 lb)

Fuel capacity

11,155 l (2,454 imp gal)

Powerplant

2 × Nakajima Ha-115 14-cyl two-row air-cooled radial piston engines, 870 kW (1,170 hp) each for take-off

745.7 kW (1,000 hp) at 4,300 m (14,108 ft)

Propellers

3-bladed metal constant speed propellers

Performance

Maximum speed

440 km/h (270 mph, 240 kn) at 4,600 m (15,092 ft)

Cruise speed

300 km/h (190 mph, 160 kn)

Range

18,000 km (11,000 mi, 9,700 nmi)

Service ceiling

8,700 m (28,500 ft)

Time to altitude

6,000 m (19,685 ft) in 24 minutes

Wing loading

210.2 kg/m2 (43.1 lb/sq ft)

Power/mass

0.104 kW/kg (0.063 hp/lb).

 

 

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