tail gun turret (2 × 20 mm). Ki-67-I KAI: Experimental model equipped with Mitsubishi Ha-104 Ru engines. 3 produced. Ki-67-I AEW variant: Equipment the early warning radar "Taki 1 Model II". 1 produced. Ki-67 "To-Gō": Army special attack aircraft type 4: Improved version of the Ki-67 I for kamikaze, unarmed, without turrets, and with two 800 kg (1,760 lb) bombs in belly compartment. Ki-67 "guided missile mother ship": Experimental type for carrying guided missiles.(Kawasaki Ki-147 I-Go Type 1-Ko, Mitsubishi Ki-148 I-Go Type 1-Otsu, I-Go Type 1-Hei, "Ke-Go" IR, "Ko-Go","Sa-Go") 1 produced. Ki-67 long-range bomber variant: Equipped with widened wings and without turrets. Only a project. Ki-67 ground attack variant: Version armed with three remote-control ground-firing 5 × 30° 20 mm cannons, 20 mm defensive cannon in the tail position, three 13.2 mm (.51 in) machine guns in lateral and upper positions, and more fuel capacity for long range. Specifically designed for land strikes against B-29 bases in the Marianas. Only a project. Ki-67-II: Prototypes. Modified version of the Ki-67-I, with two Mitsubishi Ha-214 engines of 1,603 kW (2,150 hp) each. 2 produced. Ki-67 glider tug: A standard Ki67-I was used to tow the "Manazuru" (Crane) transport glider in tests. "Yasukuni": Naval torpedo bomber version of the Ki-67-I. Created from Ki-67-Is transferred from the IJAAF. Ki-69: Heavily armed escort fighter model. Only a project. Ki-97: Transport model. Only a project. Ki-109: Night fighter prototypes. Ki-67-I modified for night fighting for operating in pairs, the Ki-109a with a radar/reflector (similar to the Douglas Havoc II "Turbinlite" concept, only using invisible radio beams rather than a powerful searchlight) for radar transmission and detection and the Ki-109b, armed with twin 37 mm Ho-203 cannon in an upward-firing Schrage Musik-style fixed dorsal mount (as the single Ho-203 autocannon in the Mitsubishi Ki-46-III KAI was) to destroy the objective. Only a project. Ki-109: Day Fighter prototypes. Ki-67-I modified for daylight fighting. One fixed 75 mm Type 88 Heavy Cannon in the nose and one mobile 12.7 mm (0.5 in) Ho-103 Type 1 machine gun in the tail. Equipped with Mitsubishi Ha-104 engines of 1,417 kW (1,900 hp) each or turbocharged Ha-104 Ru with 1,417 kW (1,900 hp) each. 2 produced. Ki-109 Army Heavy Fighter Interceptor: First non-prototype model of series. Lacking gun positions in upper and side positions and without bomb-bay compartments. Fixed 75 mm Type 88 Heavy Cannon in the nose retained from Day Fighter