The Tachikawa Ki-94 was designed to meet a request by the Japanese Army for a heavily-armed high-altitude fighter fitted with a pressure cabin and capable of reaching a top speed of 800 km/h (497 mph), with a maximum range of 3000 km (1,864 miles). The unconventional design that resulted was a large twin-boom monoplane powered by two 2,200 hp Mitsubishi Ha-211 Ru eighteen-cylinder air-cooled radial engines that were mounted fore and aft of the pilot's cockpit and drove four-blade tractor and pusher propellors. Proposed armament included two 37mm Ho-203 cannon and two 30mm Ho-105 cannon. A maximum speed of 485 mph was anticipated. A full-size wooden mock-up was completed late in 1943, but development of the aircraft was discontinued when it was judged that the project was too complex and its calculated performance unduly optimistic. Soon after, Tachikawa submitted a new proposal, which more closely matched the abilities of the competitive Nakajima Ki-87. The new aircraft was a single engined fighter of conventional design with a laminar-flow wing and featuring a pressure cabin mounted in the the fuselage behind the wing trailing edges. The proposal was accepted, with one test airframe, three prototypes and eighteen pre-production aircraft being requested. The new aircraft was designated the Ki-94-II, to differentiate it from the Ki-94-I twin-boom design. Problems involved with getting the needed six-blade propeller resulted in the initial August 1945 testing to be done with a temporary four-blade propeller. The war ended with the six-bladed version ready to make its intended maiden flight only three days later. Needless to say, the flight and the program was canceled. (Source: Francillion)

Tachikawa Ki.94-II

Type:           high altitude fighter
Service: 	Japanese Army Air Force (JAAF)
Crew:           Pilot
Armament:       two wing mounted 30 mm Ho-105 cannon 
		two wing mounted 20 mm Ho-5 cannon 
		one 1102 lb (500 kg) bomb externally
Reference: 	Francillon: 267 

Specifications:
        Length:         39' 4.5" (12 m)
        Height:         15' 3" (4.65 m)
        Wingspan:       45' 11.25" (14 m)
        Wing area:      301.388 sq. ft (28 sq. m)
        Empty Weight:   10340 lbs (4690 kg)
        Loaded Weight:  14220 lbs (6540 kg)

Propulsion:
        No. of Engines: 1
        Powerplant:     Nakajima Ha-44 Type 12 18-cylinder radial
        Horsepower:     2450 hp

Performance:
        Range: 		1305 miles (2100 km)
        Cruise Speed:   273 mph (440 km/h) at 29,530 ft 
        Max Speed:      442 mph (712 km/h) at 39,370 ft
        Climb to/in:    32,810 ft (10,000 m) in 17 min 38 sec
        Ceiling:        48,170 ft (14,680 m)

Production:		one prototype completed in August 1945

Additional information on this aircraft can be found at Wikipedia HERE.

For nice scale color drawings of this aircraft, see here.

Additional color schemes for this aircraft can be found here.
 

(go to Tachikawa page)

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