Manufacturer: Tachikawa Hikoki KK (Tachikawa Aeroplane Co Ltd).
Type: Single-engined high-altitude fighter.
Crew (1): Pilot in pressurised cockpit.
Powerplant: One 2,400 hp Nakajima [Ha-44] 12 eighteen-cylinder air-cooled radial engine, driving a (1st prototype) four-blade or (planned production aircraft) six-blade constant-speed metal propeller.
Armament: two wing-mounted 30 mm (1.18 in) Ho-105 cannon and two wing-mounted 20 mm (0.79 in) Ho-5 cannon. External stores: one 500 kg (1,102 lb) bomb.
Dimensions: Span 14 m (45 ft 11 3/16 in); length 12 m (39 ft 4 7/16 in); height 4.65 m (15 ft 3 1/16 in); wing area 28 sq m (301.388 sq ft).
Weights: Empty 4,690 kg (10,340 lb); loaded 6,450 kg (14,220 lb); wing loading 230.4 kg/sq m (37.2 lb/sq ft); power loading 2.6 kg/hp (5.8 lb)/hp).
Performance: Maximum speed 712 km/h (442 mph) at 12,000 m (39,370 ft); cruising speed 440 km/h (273 mph) at 9,000 m (29,530 ft); climb to 10,000 m (32,810 ft) in 17 min 38 sec; service ceiling 14,680 m (48,170 ft); range 2,100 km (1,305 miles).
Production: One prototype competed by Tachikawa Hikoki KK in August 1945.